由于项目要显示表头合并，而数据源列随时变更，又不想重复的画表格，就实现动态数据(dynamic)绑定和配置数据列模板的方式

编辑DataGridColumnHeader样式实现表头合并：效果如下

实现思路:

在表头中插入一个Grid，Grid列跟HeaderColmun列数相等，并关联HeaderColmun的SizeChanged事件，Colmun列大小发生变化时，合并的头模板也会跟着移动。

 <Grid x:Name="PART_ColumnHeadersPresenter_Grid"

                                  Height=""

                                  ShowGridLines="False">

                            </Grid>
   Dictionary<DataGridColumnHeader, ColumnDefinition> dictCols = new Dictionary<DataGridColumnHeader, ColumnDefinition>();

        private void DataGridTitleSpan_Loaded(object sender, RoutedEventArgs e)

        {

            var hdCols = WPFVisualTreeHelper.GetChildByName<DataGridColumnHeadersPresenter>(this, "PART_ColumnHeadersPresenter");

            var grid = WPFVisualTreeHelper.GetChildByName<Grid>(this, "PART_ColumnHeadersPresenter_Grid");

            if (grid == null)

            {

                return;

            }

            //grid.Visibility = Visibility.Collapsed;

            //if (DataSouceGridHeaderColTemplate == null || DataSouceGridHeaderColTemplate.Count == 0)

            //{

            //    grid.Visibility = Visibility.Collapsed;

            //}

            var hdItem = WPFVisualTreeHelper.FindVisualChild<DataGridCellsPanel>(hdCols);

            var header = hdItem.FirstOrDefault();

            if (header != null)

            {

                foreach (var item in header.Children)

                {

                    var vHd = item as DataGridColumnHeader;

                    vHd.SizeChanged += VHd_SizeChanged;

                    ColumnDefinition rd = new ColumnDefinition();

                    rd.Width = new GridLength(vHd.ActualWidth, GridUnitType.Pixel);

                    grid.ColumnDefinitions.Add(rd);

                    dictCols[vHd] = rd;

                }

            }

            GenerateHeader(DataSouceGridHeaderColTemplate, grid);

        }

        private void VHd_SizeChanged(object sender, SizeChangedEventArgs e)

        {

            var vHd = sender as DataGridColumnHeader;

            if (dictCols.ContainsKey(vHd))

            {

                dictCols[vHd].Width = new GridLength(vHd.ActualWidth, GridUnitType.Pixel);

            }

        }

下面是完整的HeaderColmun列模板

<Style x:Key="DataGridColumnHeaderStyle_Colspan"

           TargetType="{x:Type DataGridColumnHeader}">

        <Setter Property="VerticalContentAlignment"

                Value="Center" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGridColumnHeader}">

                    <!--<Grid>

                        <Themes:DataGridHeaderBorder BorderBrush="{TemplateBinding BorderBrush}"

                                                     BorderThickness="{TemplateBinding BorderThickness}"

                                                     Background="{TemplateBinding Background}"

                                                     IsClickable="{TemplateBinding CanUserSort}"

                                                     IsPressed="{TemplateBinding IsPressed}"

                                                     IsHovered="{TemplateBinding IsMouseOver}"

                                                     Padding="{TemplateBinding Padding}"

                                                     SortDirection="{TemplateBinding SortDirection}"

                                                     SeparatorBrush="{TemplateBinding SeparatorBrush}"

                                                     SeparatorVisibility="{TemplateBinding SeparatorVisibility}">

                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

                                              RecognizesAccessKey="True"

                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                              VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />

                        </Themes:DataGridHeaderBorder>

                        <Thumb x:Name="PART_LeftHeaderGripper"

                               HorizontalAlignment="Left"

                               Style="{StaticResource ColumnHeaderGripperStyle}" />

                        <Thumb x:Name="PART_RightHeaderGripper"

                               HorizontalAlignment="Right"

                               Style="{StaticResource ColumnHeaderGripperStyle}" />

                    </Grid>-->

                    <Grid>

                        <Grid.RowDefinitions>

                            <RowDefinition Height="Auto"></RowDefinition>

                            <RowDefinition Height="*"></RowDefinition>

                        </Grid.RowDefinitions>

                        <Border BorderBrush="{Binding BorderBrush,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                Padding="{TemplateBinding Padding}"

                                BorderThickness="0 0 0 1"

                                Grid.Row=""

                                Visibility="{Binding Path=ColspanVisibility,RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}">

                            <Grid x:Name="PART_ColumnHeadersPresenter_Grid"

                                  Height=""

                                  ShowGridLines="False">

                            </Grid>

                        </Border>

                        <Grid Grid.Row="">

                            <Themes:DataGridHeaderBorder BorderBrush="{Binding BorderBrush,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                                         BorderThickness="0 0 1 1"

                                                         Background="Transparent"

                                                         IsClickable="{TemplateBinding CanUserSort}"

                                                         IsPressed="{TemplateBinding IsPressed}"

                                                         IsHovered="{TemplateBinding IsMouseOver}"

                                                         Padding="{TemplateBinding Padding}"

                                                         SortDirection="{TemplateBinding SortDirection}"

                                                         SeparatorBrush="{TemplateBinding SeparatorBrush}"

                                                         SeparatorVisibility="{TemplateBinding SeparatorVisibility}">

                                <ContentPresenter HorizontalAlignment="{Binding HorizontalContentAlignment,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                                  RecognizesAccessKey="True"

                                                  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                                  VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />

                            </Themes:DataGridHeaderBorder>

                            <Thumb x:Name="PART_LeftHeaderGripper"

                                   HorizontalAlignment="Left"

                                   Style="{StaticResource ColumnHeaderGripperStyle}" />

                            <Thumb x:Name="PART_RightHeaderGripper"

                                   HorizontalAlignment="Right"

                                   Style="{StaticResource ColumnHeaderGripperStyle}" />

                        </Grid>

                    </Grid>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

关键代码如下：

显示的View Xaml和Code

<UserControl x:Class="YunTong46View.Usr_TestDataGridTableView"

             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

             xmlns:local="clr-namespace:YunTong46View"

             mc:Ignorable="d"

             d:DesignHeight=""

             d:DesignWidth="">

    <UserControl.Resources>

        <ResourceDictionary Source="Themes/DataGridStyle.xaml">

        </ResourceDictionary>

    </UserControl.Resources>

    <StackPanel>

        <StackPanel  Margin="20 15 20 10">

            <TextBlock Text="出现滚动条:数据绑定"

                       Foreground="Red"

                       FontSize=""></TextBlock>

            <local:DataGridTitleSpan   x:Name="dataGridTitle2"

                                       Width=""

                                       Height=""

                                       VerticalAlignment="Top"

                                       HorizontalAlignment="Left"

                                       ScrollViewer.HorizontalScrollBarVisibility="Visible"

                                       ScrollViewer.VerticalScrollBarVisibility="Visible"

                                       DataSouceGridHeaderColTemplate="{Binding Headers0}"

                                       ItemsSource="{Binding DataSource}">

            </local:DataGridTitleSpan>

        </StackPanel>

        <StackPanel  Margin="20 10">

            <TextBlock Text="dynamic动态类数据绑定不支持排序"

                       Foreground="Red"

                       FontSize=""></TextBlock>

            <local:DataGridTitleSpan   x:Name="dataGridTitle"

                                       Height=""

                                       ScrollViewer.HorizontalScrollBarVisibility="Visible"

                                       ScrollViewer.VerticalScrollBarVisibility="Visible"

                                       DataSouceGridHeaderColTemplate="{Binding Headers0}">

            </local:DataGridTitleSpan>

        </StackPanel>

        <StackPanel  Margin="20 10">

            <TextBlock Text="引用样式"

                       Foreground="Red"

                       FontSize=""></TextBlock>

            <DataGrid    x:Name="dataGrid"

                         Height=""

                         Style="{DynamicResource DataGridStyle_Colspan}"

                         ItemsSource="{Binding DataSource}"

                         Visibility="Visible">

            </DataGrid>

        </StackPanel>

        <StackPanel  Margin="20 10">

            <TextBlock Text="原生DataGrid"

                       Foreground="Red"

                       FontSize=""></TextBlock>

            <DataGrid    x:Name="dataGrid2"

                         Height=""

                         BorderBrush="Blue"

                         AutoGenerateColumns="False"

                         HorizontalGridLinesBrush="Blue"

                         VerticalGridLinesBrush="Blue"

                         ItemsSource="{Binding DataSource}">

            </DataGrid>

        </StackPanel>

    </StackPanel>

</UserControl>
using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace YunTong46View

{

    /// <summary>

    /// Usr_YunTong46MainView.xaml 的交互逻辑

    /// </summary>

    public partial class Usr_TestDataGridTableView : UserControl

    {

        ViewMode viewMode = new ViewMode();

        public Usr_TestDataGridTableView()

        {

            InitializeComponent();

            viewMode.Init();

            this.DataContext = viewMode;

            SetHeaderTemplates(dataGridTitle, viewMode.Headers1);

            SetHeaderTemplates(dataGridTitle2, viewMode.Headers1);

            SetHeaderTemplates(dataGrid, viewMode.Headers1);

            SetHeaderTemplates(dataGrid2, viewMode.Headers1);

            this.Loaded += Usr_YunTong46MainView_Loaded;

        }

        private void Usr_YunTong46MainView_Loaded(object sender, RoutedEventArgs e)

        {

            var json = JsonHelper.SerializeObject(viewMode.DataSource);

            var dyDatas = JsonHelper.DeserializeObject<dynamic>(json);

            dataGridTitle.ItemsSource = dyDatas;

        }

        private void SetHeaderTemplates(DataGrid dataGrid, List<HeaderTemplate> headers)

        {

            foreach (var item in headers)

            {

                var col = new DataGridTextColumn();

                col.Header = item.HeaderName;

                var bind = new Binding();

                bind.Path = new PropertyPath(item.PropertyName);

                if (!string.IsNullOrEmpty(item.PropertyFormat))

                {

                    //bind.StringFormat = "{}{0:" + item.PropertyFormat + "}}";

                    bind.StringFormat = item.PropertyFormat.Trim();

                }

                col.Binding = bind;

                DataGridLengthUnitType unType = DataGridLengthUnitType.Auto;

                double width = ;

                if (item.ColmunUnitType == "p")

                {

                    unType = DataGridLengthUnitType.Pixel;

                    width = item.ColmunWidth;

                }

                else if (item.ColmunUnitType == "s")

                {

                    unType = DataGridLengthUnitType.Star;

                    width = item.ColmunWidth;

                }

                if (width < )

                {

                    width = ;

                }

                col.Width = new DataGridLength(width, unType);

                dataGrid.Columns.Add(col);

            }

        }

    }

    public class ViewMode

    {

        private List<HeaderTemplate> _headers0 = new List<HeaderTemplate>();

        private List<HeaderTemplate> _headers1 = new List<HeaderTemplate>();

        private List<DataModel> _dataSource = new List<DataModel>();

        public List<HeaderTemplate> Headers0

        {

            get

            {

                return _headers0;

            }

            set

            {

                _headers0 = value;

            }

        }

        public List<HeaderTemplate> Headers1

        {

            get

            {

                return _headers1;

            }

            set

            {

                _headers1 = value;

            }

        }

        public List<DataModel> DataSource

        {

            get

            {

                return _dataSource;

            }

            set

            {

                _dataSource = value;

            }

        }

        public void Init()

        {

            _headers0.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , HeaderName = "故障登记时间及状态" });

            _headers0.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , HeaderName = "通知时间及通知方法" });

            _headers0.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , HeaderName = "到达时间及签名" });

            _headers0.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , HeaderName = "消除不良及破损后的时间和方法" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "GZDT", PropertyFormat = "MM-dd", ColmunUnitType = "a", ColmunWidth = , HeaderName = "月日" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "GZDT", PropertyFormat = "HH:mm", ColmunUnitType = "a", ColmunWidth = , HeaderName = "时分" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "GZDeviceName", ColmunUnitType = "a", ColmunWidth = , HeaderName = "设备名称" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "GZStatus", ColmunUnitType = "a", ColmunWidth = , HeaderName = "故障状态" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "TZDW", ColmunUnitType = "a", ColmunWidth = , HeaderName = "通知单位" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "TZDT", PropertyFormat = "MM-dd", ColmunUnitType = "a", ColmunWidth = , HeaderName = "月日" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "TZDT", PropertyFormat = "HH:mm", ColmunUnitType = "a", ColmunWidth = , HeaderName = "时分" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "TZFF", ColmunUnitType = "a", ColmunWidth = , HeaderName = "通知方法" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "DDDT", PropertyFormat = "MM-dd", ColmunUnitType = "a", ColmunWidth = , HeaderName = "月日" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "DDDT", PropertyFormat = "HH:mm", ColmunUnitType = "a", ColmunWidth = , HeaderName = "时分" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "DDQM", ColmunUnitType = "a", ColmunWidth = , HeaderName = "该段工作人员到达后签名" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "BLDT", PropertyFormat = "MM-dd", ColmunUnitType = "a", ColmunWidth = , HeaderName = "月日" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "BLDT", PropertyFormat = "HH:mm", ColmunUnitType = "a", ColmunWidth = , HeaderName = "时分" });

            _headers1.Add(new HeaderTemplate() { ColmunIndex = , ColmunSpan = , PropertyName = "BLTEXT", ColmunUnitType = "s", ColmunWidth = , HeaderName = "破损及不良的原因，采用何种方法进行\r;修理。工作人员及车站值班员签字" });

            for (int i = ; i < ; i++)

            {

                DataModel model = new DataModel();

                model.DDDT = DateTime.Now.AddMinutes(-);

                model.GZDT = model.DDDT;

                model.TZDT = model.DDDT;

                model.BLDT = model.DDDT;

                model.GZDeviceName = "故障设备名称" + i.ToString();

                model.GZStatus = "故障状态" + i.ToString();

                model.TZDW = "通知单位" + i.ToString();

                model.TZFF = "通知方法" + i.ToString();

                model.DDQM = "到达签名" + i.ToString();

                model.BLTEXT = "不良内容" + i.ToString();

                _dataSource.Add(model);

            }

        }

    }

    public class DataModel

    {

        public DateTime GZDT { set; get; }

        public string GZDeviceName { set; get; }

        public string GZStatus { set; get; }

        public DateTime TZDT { set; get; }

        public string TZDW { set; get; }

        public string TZFF { set; get; }

        /// <summary>

        /// 到达时间

        /// </summary>

        public DateTime DDDT { set; get; }

        public string DDQM { set; get; }

        public DateTime BLDT { set; get; }

        public string BLTEXT { set; get; }

    }

}

DataTable样式和Code

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

                    xmlns:Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero">

    <Style x:Key="DataGridRowStyle_ColSpan"

           TargetType="{x:Type DataGridRow}">

        <Setter Property="Background"

                Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" />

        <Setter Property="SnapsToDevicePixels"

                Value="true" />

        <Setter Property="Validation.ErrorTemplate"

                Value="{x:Null}" />

        <Setter Property="ValidationErrorTemplate">

            <Setter.Value>

                <ControlTemplate>

                    <TextBlock Foreground="Red"

                               Margin="2,0,0,0"

                               Text="!"

                               VerticalAlignment="Center" />

                </ControlTemplate>

            </Setter.Value>

        </Setter>

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGridRow}">

                    <Border x:Name="DGR_Border"

                            BorderBrush="{TemplateBinding BorderBrush}"

                            BorderThickness="{TemplateBinding BorderThickness}"

                            Background="{TemplateBinding Background}"

                            SnapsToDevicePixels="True">

                        <SelectiveScrollingGrid>

                            <SelectiveScrollingGrid.ColumnDefinitions>

                                <ColumnDefinition Width="Auto" />

                                <ColumnDefinition Width="*" />

                            </SelectiveScrollingGrid.ColumnDefinitions>

                            <SelectiveScrollingGrid.RowDefinitions>

                                <RowDefinition Height="*" />

                                <RowDefinition Height="Auto" />

                            </SelectiveScrollingGrid.RowDefinitions>

                            <Border Grid.Column=""

                                    BorderThickness="1 0 0 0"

                                    BorderBrush="{Binding BorderBrush,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}">

                                <DataGridCellsPresenter ItemsPanel="{TemplateBinding ItemsPanel}"

                                                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />

                            </Border>

                            <DataGridDetailsPresenter Grid.Column=""

                                                      Grid.Row=""

                                                      SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding AreRowDetailsFrozen, ConverterParameter={x:Static SelectiveScrollingOrientation.Vertical}, Converter={x:Static DataGrid.RowDetailsScrollingConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"

                                                      Visibility="{TemplateBinding DetailsVisibility}" />

                            <!--隐藏左侧行号-->

                            <DataGridRowHeader Grid.RowSpan=""

                                               SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"

                                               Visibility="Collapsed" />

                        </SelectiveScrollingGrid>

                    </Border>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

        <Style.Triggers>

            <Trigger Property="IsNewItem"

                     Value="True">

                <Setter Property="Margin"

                        Value="{Binding NewItemMargin, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />

            </Trigger>

            <Trigger Property="IsSelected"

                     Value="True">

                <Setter Property="Background"

                        Value="#FFE8C91A" />

                <Setter Property="Foreground"

                        Value="Red" />

            </Trigger>

        </Style.Triggers>

    </Style>

    <Style x:Key="DataGridCellStyle_Colspan"

           TargetType="{x:Type DataGridCell}">

        <Setter Property="FontSize"

                Value="" />

        <Setter Property="HorizontalContentAlignment"

                Value="Center"></Setter>

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGridCell}">

                    <!--<ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                      VerticalAlignment="Center"

                                      HorizontalAlignment="Center" />-->

                    <ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />

                </ControlTemplate>

            </Setter.Value>

        </Setter>

        <!--<Style.Triggers>

                        <Trigger Property="IsSelected"

                                 Value="True">

                            <Setter Property="Background"

                                    Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />

                            <Setter Property="Foreground"

                                    Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />

                            <Setter Property="BorderBrush"

                                    Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />

                        </Trigger>

                        <Trigger Property="IsMouseOver"

                                 Value="True">

                            <Setter Property="Background"

                                    Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />

                        </Trigger>

                        <Trigger Property="IsKeyboardFocusWithin"

                                 Value="True">

                            <Setter Property="BorderBrush"

                                    Value="{DynamicResource {x:Static DataGrid.FocusBorderBrushKey}}" />

                        </Trigger>

                        <Trigger Property="IsSelected"

                                 Value="True">

                            <Setter Property="Foreground"

                                    Value="Black" />

                        </Trigger>

                    </Style.Triggers>-->

    </Style>

    <BooleanToVisibilityConverter x:Key="bool2VisibilityConverter" />

    <!--<Style x:Key="RowHeaderGripperStyle"

           TargetType="{x:Type Thumb}">

        <Setter Property="Height"

                Value="" />

        <Setter Property="Background"

                Value="Transparent" />

        <Setter Property="Cursor"

                Value="SizeNS" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type Thumb}">

                    <Border Background="{TemplateBinding Background}"

                            Padding="{TemplateBinding Padding}" />

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>-->

    <Style x:Key="DataGridRowHeaderStyle_Colspan"

           TargetType="{x:Type DataGridRowHeader}">

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGridRowHeader}">

                    <Grid>

                        <Themes:DataGridHeaderBorder BorderBrush="{TemplateBinding BorderBrush}"

                                                     BorderThickness="{TemplateBinding BorderThickness}"

                                                     Background="{TemplateBinding Background}"

                                                     IsPressed="{TemplateBinding IsPressed}"

                                                     IsHovered="{TemplateBinding IsMouseOver}"

                                                     IsSelected="{TemplateBinding IsRowSelected}"

                                                     Orientation="Horizontal"

                                                     Padding="{TemplateBinding Padding}"

                                                     SeparatorBrush="{TemplateBinding SeparatorBrush}"

                                                     SeparatorVisibility="{TemplateBinding SeparatorVisibility}">

                            <StackPanel Orientation="Horizontal">

                                <ContentPresenter RecognizesAccessKey="True"

                                                  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                                  VerticalAlignment="Center" />

                                <Control SnapsToDevicePixels="false"

                                         Template="{Binding ValidationErrorTemplate, RelativeSource={RelativeSource AncestorType={x:Type DataGridRow}}}"

                                         Visibility="{Binding (Validation.HasError), Converter={StaticResource bool2VisibilityConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGridRow}}}" />

                            </StackPanel>

                        </Themes:DataGridHeaderBorder>

                        <!--<Thumb x:Name="PART_TopHeaderGripper"

                               Style="{StaticResource RowHeaderGripperStyle}"

                               VerticalAlignment="Top" />

                        <Thumb x:Name="PART_BottomHeaderGripper"

                               Style="{StaticResource RowHeaderGripperStyle}"

                               VerticalAlignment="Bottom" />-->

                    </Grid>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

    <Style x:Key="ColumnHeaderGripperStyle"

           TargetType="{x:Type Thumb}">

        <Setter Property="Width"

                Value="" />

        <Setter Property="Background"

                Value="Transparent" />

        <Setter Property="Cursor"

                Value="SizeWE" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type Thumb}">

                    <Border Background="{TemplateBinding Background}"

                            Padding="{TemplateBinding Padding}" />

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

    <Style x:Key="DataGridColumnHeaderStyle_Colspan"

           TargetType="{x:Type DataGridColumnHeader}">

        <Setter Property="VerticalContentAlignment"

                Value="Center" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGridColumnHeader}">

                    <!--<Grid>

                        <Themes:DataGridHeaderBorder BorderBrush="{TemplateBinding BorderBrush}"

                                                     BorderThickness="{TemplateBinding BorderThickness}"

                                                     Background="{TemplateBinding Background}"

                                                     IsClickable="{TemplateBinding CanUserSort}"

                                                     IsPressed="{TemplateBinding IsPressed}"

                                                     IsHovered="{TemplateBinding IsMouseOver}"

                                                     Padding="{TemplateBinding Padding}"

                                                     SortDirection="{TemplateBinding SortDirection}"

                                                     SeparatorBrush="{TemplateBinding SeparatorBrush}"

                                                     SeparatorVisibility="{TemplateBinding SeparatorVisibility}">

                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"

                                              RecognizesAccessKey="True"

                                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                              VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />

                        </Themes:DataGridHeaderBorder>

                        <Thumb x:Name="PART_LeftHeaderGripper"

                               HorizontalAlignment="Left"

                               Style="{StaticResource ColumnHeaderGripperStyle}" />

                        <Thumb x:Name="PART_RightHeaderGripper"

                               HorizontalAlignment="Right"

                               Style="{StaticResource ColumnHeaderGripperStyle}" />

                    </Grid>-->

                    <Grid>

                        <Grid.RowDefinitions>

                            <RowDefinition Height="Auto"></RowDefinition>

                            <RowDefinition Height="*"></RowDefinition>

                        </Grid.RowDefinitions>

                        <Border BorderBrush="{Binding BorderBrush,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                Padding="{TemplateBinding Padding}"

                                BorderThickness="0 0 0 1"

                                Grid.Row=""

                                Visibility="{Binding Path=ColspanVisibility,RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}">

                            <Grid x:Name="PART_ColumnHeadersPresenter_Grid"

                                  Height=""

                                  ShowGridLines="False">

                            </Grid>

                        </Border>

                        <Grid Grid.Row="">

                            <Themes:DataGridHeaderBorder BorderBrush="{Binding BorderBrush,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                                         BorderThickness="0 0 1 1"

                                                         Background="Transparent"

                                                         IsClickable="{TemplateBinding CanUserSort}"

                                                         IsPressed="{TemplateBinding IsPressed}"

                                                         IsHovered="{TemplateBinding IsMouseOver}"

                                                         Padding="{TemplateBinding Padding}"

                                                         SortDirection="{TemplateBinding SortDirection}"

                                                         SeparatorBrush="{TemplateBinding SeparatorBrush}"

                                                         SeparatorVisibility="{TemplateBinding SeparatorVisibility}">

                                <ContentPresenter HorizontalAlignment="{Binding HorizontalContentAlignment,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGrid}}}"

                                                  RecognizesAccessKey="True"

                                                  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"

                                                  VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />

                            </Themes:DataGridHeaderBorder>

                            <Thumb x:Name="PART_LeftHeaderGripper"

                                   HorizontalAlignment="Left"

                                   Style="{StaticResource ColumnHeaderGripperStyle}" />

                            <Thumb x:Name="PART_RightHeaderGripper"

                                   HorizontalAlignment="Right"

                                   Style="{StaticResource ColumnHeaderGripperStyle}" />

                        </Grid>

                    </Grid>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

    <Style x:Key="DataGridStyle_Colspan"

           TargetType="{x:Type DataGrid}">

        <Setter Property="Background"

                Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />

        <Setter Property="Foreground"

                Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" />

        <Setter Property="BorderBrush"

                Value="#FF688CAF" />

        <Setter Property="HorizontalContentAlignment"

                Value="Center"></Setter>

        <Setter Property="BorderThickness"

                Value="" />

        <Setter Property="RowDetailsVisibilityMode"

                Value="VisibleWhenSelected" />

        <Setter Property="ScrollViewer.CanContentScroll"

                Value="true" />

        <Setter Property="ScrollViewer.PanningMode"

                Value="Both" />

        <Setter Property="Stylus.IsFlicksEnabled"

                Value="False" />

        <Setter Property="CanUserAddRows"

                Value="False" />

        <Setter Property="BorderBrush"

                Value="Blue">

        </Setter>

        <Setter Property="HorizontalGridLinesBrush"

                Value="Blue">

        </Setter>

        <Setter Property="VerticalGridLinesBrush"

                Value="Blue">

        </Setter>

        <Setter Property="AutoGenerateColumns"

                Value="False">

        </Setter>

        <Setter Property="TextBlock.TextAlignment"

                Value="Center">

        </Setter>

        <Setter Property="RowHeaderStyle"

                Value="{StaticResource DataGridRowHeaderStyle_Colspan}">

        </Setter>

        <Setter Property="RowStyle"

                Value="{StaticResource DataGridRowStyle_ColSpan}">

        </Setter>

        <Setter Property="ColumnHeaderStyle"

                Value="{StaticResource DataGridColumnHeaderStyle_Colspan}">

        </Setter>

        <Setter Property="CellStyle"

                Value="{StaticResource DataGridCellStyle_Colspan}">

        </Setter>

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type DataGrid}">

                    <Border BorderBrush="{TemplateBinding BorderBrush}"

                            Background="{TemplateBinding Background}"

                            Padding="{TemplateBinding Padding}"

                            SnapsToDevicePixels="True"

                            x:Name="bd_Out">

                        <ScrollViewer x:Name="DG_ScrollViewer"

                                      Focusable="false">

                            <ScrollViewer.Template>

                                <ControlTemplate TargetType="{x:Type ScrollViewer}">

                                    <Grid>

                                        <Grid.ColumnDefinitions>

                                            <ColumnDefinition Width="Auto" />

                                            <ColumnDefinition Width="*" />

                                            <ColumnDefinition Width="Auto" />

                                        </Grid.ColumnDefinitions>

                                        <Grid.RowDefinitions>

                                            <RowDefinition Height="Auto" />

                                            <RowDefinition Height="*" />

                                            <RowDefinition Height="Auto" />

                                        </Grid.RowDefinitions>

                                        <Button Command="{x:Static DataGrid.SelectAllCommand}"

                                                Focusable="false"

                                                Style="{DynamicResource {ComponentResourceKey ResourceId=DataGridSelectAllButtonStyle, TypeInTargetAssembly={x:Type DataGrid}}}"

                                                Visibility="{Binding HeadersVisibility, ConverterParameter={x:Static DataGridHeadersVisibility.All}, Converter={x:Static DataGrid.HeadersVisibilityConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"

                                                Width="{Binding CellsPanelHorizontalOffset, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />

                                        <Border BorderThickness="1 1 1 0"

                                                Margin="-1 0 0 0"

                                                BorderBrush="{Binding BorderBrush,ElementName=bd_Out}"

                                                Grid.Column="">

                                            <DataGridColumnHeadersPresenter x:Name="PART_ColumnHeadersPresenter"

                                                                            Visibility="{Binding HeadersVisibility, ConverterParameter={x:Static DataGridHeadersVisibility.Column}, Converter={x:Static DataGrid.HeadersVisibilityConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />

                                        </Border>

                                        <ScrollContentPresenter x:Name="PART_ScrollContentPresenter"

                                                                CanContentScroll="{TemplateBinding CanContentScroll}"

                                                                Grid.ColumnSpan=""

                                                                Grid.Row="" />

                                        <ScrollBar x:Name="PART_VerticalScrollBar"

                                                   Grid.Column=""

                                                   Maximum="{TemplateBinding ScrollableHeight}"

                                                   Orientation="Vertical"

                                                   Grid.Row=""

                                                   Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"

                                                   Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"

                                                   ViewportSize="{TemplateBinding ViewportHeight}" />

                                        <Grid Grid.Column=""

                                              Grid.Row="">

                                            <Grid.ColumnDefinitions>

                                                <ColumnDefinition Width="{Binding NonFrozenColumnsViewportHorizontalOffset, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />

                                                <ColumnDefinition Width="*" />

                                            </Grid.ColumnDefinitions>

                                            <ScrollBar x:Name="PART_HorizontalScrollBar"

                                                       Grid.Column=""

                                                       Maximum="{TemplateBinding ScrollableWidth}"

                                                       Orientation="Horizontal"

                                                       Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"

                                                       Value="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"

                                                       ViewportSize="{TemplateBinding ViewportWidth}" />

                                        </Grid>

                                    </Grid>

                                </ControlTemplate>

                            </ScrollViewer.Template>

                            <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />

                        </ScrollViewer>

                    </Border>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

        <Style.Triggers>

            <MultiTrigger>

                <MultiTrigger.Conditions>

                    <Condition Property="IsGrouping"

                               Value="true" />

                    <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping"

                               Value="false" />

                </MultiTrigger.Conditions>

                <Setter Property="ScrollViewer.CanContentScroll"

                        Value="false" />

            </MultiTrigger>

        </Style.Triggers>

    </Style>

</ResourceDictionary>
using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Controls.Primitives;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace YunTong46View

{

    /// <summary>

    /// 按照步骤 1a 或 1b 操作，然后执行步骤 2 以在 XAML 文件中使用此自定义控件。

    ///

    /// 步骤 1a) 在当前项目中存在的 XAML 文件中使用该自定义控件。

    /// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根

    /// 元素中:

    ///

    ///     xmlns:MyNamespace="clr-namespace:YunTong46View"

    ///

    ///

    /// 步骤 1b) 在其他项目中存在的 XAML 文件中使用该自定义控件。

    /// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根

    /// 元素中:

    ///

    ///     xmlns:MyNamespace="clr-namespace:YunTong46View;assembly=YunTong46View"

    ///

    /// 您还需要添加一个从 XAML 文件所在的项目到此项目的项目引用，

    /// 并重新生成以避免编译错误:

    ///

    ///     在解决方案资源管理器中右击目标项目，然后依次单击

    ///     “添加引用”->“项目”->[浏览查找并选择此项目]

    ///

    ///

    /// 步骤 2)

    /// 继续操作并在 XAML 文件中使用控件。

    ///

    ///     <MyNamespace:DataGridTitleSpan/>

    ///

    /// </summary>

    public class DataGridTitleSpan : DataGrid

    {

        ResourceDictionary rs = new ResourceDictionary();

        static DataGridTitleSpan()

        {

            DefaultStyleKeyProperty.OverrideMetadata(typeof(DataGridTitleSpan), new FrameworkPropertyMetadata(typeof(DataGridTitleSpan)));

        }

        public DataGridTitleSpan() : base()

        {

            rs.Source = new Uri("/YunTong46View;component/Themes/DataGridStyle.xaml", UriKind.Relative);

            //RowHeaderStyle = rs["DataGridRowHeaderStyle_Colspan"] as Style;

            //RowStyle = rs["DataGridRowStyle_ColSpan"] as Style;

            //ColumnHeaderStyle = rs["DataGridColumnHeaderStyle_Colspan"] as Style;

            var style = rs["DataGridStyle_Colspan"] as Style;

            this.Style = style;

            this.Loaded += DataGridTitleSpan_Loaded;

        }

        public List<HeaderTemplate> DataSouceGridHeaderColTemplate

        {

            get { return (List<HeaderTemplate>)GetValue(DataSouceGridHeaderColTemplateProperty); }

            set { SetValue(DataSouceGridHeaderColTemplateProperty, value); }

        }

        // Using a DependencyProperty as the backing store for DataSouceGridHeaderTemplate.  This enables animation, styling, binding, etc...

        public static readonly DependencyProperty DataSouceGridHeaderColTemplateProperty =

            DependencyProperty.Register("DataSouceGridHeaderColTemplate", typeof(List<HeaderTemplate>), typeof(DataGridTitleSpan), new PropertyMetadata(null));

        public Visibility ColspanVisibility

        {

            get { return (Visibility)GetValue(ColspanVisibilityProperty); }

            set { SetValue(ColspanVisibilityProperty, value); }

        }

        // Using a DependencyProperty as the backing store for ColspanVisibility.  This enables animation, styling, binding, etc...

        public static readonly DependencyProperty ColspanVisibilityProperty =

            DependencyProperty.Register("ColspanVisibility", typeof(Visibility), typeof(DataGridTitleSpan), new PropertyMetadata(Visibility.Visible));

        Dictionary<DataGridColumnHeader, ColumnDefinition> dictCols = new Dictionary<DataGridColumnHeader, ColumnDefinition>();

        private void DataGridTitleSpan_Loaded(object sender, RoutedEventArgs e)

        {

            var hdCols = WPFVisualTreeHelper.GetChildByName<DataGridColumnHeadersPresenter>(this, "PART_ColumnHeadersPresenter");

            var grid = WPFVisualTreeHelper.GetChildByName<Grid>(this, "PART_ColumnHeadersPresenter_Grid");

            if (grid == null)

            {

                return;

            }

            if (DataSouceGridHeaderColTemplate == null || DataSouceGridHeaderColTemplate.Count == )

            {

                (grid.Parent as Border).Visibility = Visibility.Collapsed;

                //ColspanVisibility = Visibility.Collapsed;

                return;

            }

            var hdItem = WPFVisualTreeHelper.FindVisualChild<DataGridCellsPanel>(hdCols);

            var header = hdItem.FirstOrDefault();

            if (header != null)

            {

                foreach (var item in header.Children)

                {

                    var vHd = item as DataGridColumnHeader;

                    vHd.SizeChanged += VHd_SizeChanged;

                    ColumnDefinition rd = new ColumnDefinition();

                    rd.Width = new GridLength(vHd.ActualWidth, GridUnitType.Pixel);

                    grid.ColumnDefinitions.Add(rd);

                    dictCols[vHd] = rd;

                }

            }

            GenerateHeader(DataSouceGridHeaderColTemplate, grid);

        }

        private void VHd_SizeChanged(object sender, SizeChangedEventArgs e)

        {

            var vHd = sender as DataGridColumnHeader;

            if (dictCols.ContainsKey(vHd))

            {

                dictCols[vHd].Width = new GridLength(vHd.ActualWidth, GridUnitType.Pixel);

            }

        }

        private void GenerateHeader(List<HeaderTemplate> headers, Grid g)

        {

            int colIndex = ;

            for (int i = ; i < headers.Count; i++)

            {

                var col = headers[i];

                g.Children.Add(BigTitle(colIndex, col.ColmunSpan, col.HeaderName));

                colIndex += (col.ColmunSpan + col.ColmunIndex);

            }

        }

        private UIElement BigTitle(int col, int colspan, string text)

        {

            var txb = new TextBlock();

            Border bd = new Border();

            bd.BorderThickness = new Thickness(, , , );

            bd.BorderBrush = this.BorderBrush;

            //bd.Background = Brushes.Red;

            bd.Child = txb;

            txb.HorizontalAlignment = HorizontalAlignment.Center;

            txb.VerticalAlignment = VerticalAlignment.Center;

            txb.Text = text;

            Grid.SetColumn(bd, col);

            if (colspan > )

            {

                Grid.SetColumnSpan(bd, colspan);

            }

            return bd;

        }

    }

}

如果想修改表格颜色请设置下面三个Brush

  <Setter Property="BorderBrush"

                Value="Blue">

        </Setter>

        <Setter Property="HorizontalGridLinesBrush"

                Value="Blue">

        </Setter>

        <Setter Property="VerticalGridLinesBrush"

                Value="Blue">

        </Setter>
此功能有两个小问题：
1.DataGridTitleSpan_Loaded捕获了DataGrid的列，所以不能在UserControl或者window的Load事件中SetHeaderTemplates，只能再构造函数中设置列。
2.原本以为通过判断合并列的数据如果为空，那么自动隐藏Grid，但是不知道为什么不生效，只能通过依赖属性才能隐藏合并的头
 if (DataSouceGridHeaderColTemplate == null || DataSouceGridHeaderColTemplate.Count == )

            {

                (grid.Parent as Border).Visibility = Visibility.Collapsed;

                //ColspanVisibility = Visibility.Collapsed;

                return;

            }

该示例主要的目的通过HeaderTemplate模板数据的配置，实现数表格头部的合并和数据显示。

还有一种稍微复杂表格头的合并，目前是列合并，可能存在行和列同时合并，已经有思路还未验证是否可行，由于项目暂未用到不花费时间研究，园友有需要就在下方留言。

点击此处下载源码

合并行的已经实现：效果如下

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