1、效果图:

2、XAML

<Window x:Class="WpfApplication2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">
<Grid>
<ListBox Height="287" HorizontalAlignment="Left" Margin="12,12,0,0" Name="m_ListBox" VerticalAlignment="Top" Width="148" SelectionMode="Single" AllowDrop="True" Drop="m_ListBox_Drop" DragOver="m_ListBox_DragOver">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Path=Id, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
<TextBlock Text="{Binding Path=Name, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
<TextBlock Text="{Binding Path=ChildCount, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
<Button Content="展示" Tag="{Binding}" Name="m_ListBoxButton" Click="m_ListBoxButton_Click" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<DataGrid AutoGenerateColumns="False" Height="287" HorizontalAlignment="Left" Margin="181,12,0,0" Name="m_DataGrid" VerticalAlignment="Top" Width="299" AllowDrop="True" SelectionMode="Extended" PreviewMouseLeftButtonDown="m_DataGrid_PreviewMouseLeftButtonDown">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Id}" IsReadOnly="True" />
<DataGridTextColumn Binding="{Binding Name}" IsReadOnly="True" />
</DataGrid.Columns>
</DataGrid>
</Grid>
</Window>

3、CS

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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;
using System.Collections.ObjectModel;
using System.ComponentModel; namespace WpfApplication2
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
private ObservableCollection<Person> listBoxList = new ObservableCollection<Person>();
private Person m_SelectedListBoxPerson;
private Button m_SelectedListBoxButton; public MainWindow()
{
InitializeComponent();
} private void Window_Loaded(object sender, RoutedEventArgs e)
{
Person person = new Person() { Id = "", Name = "未分配" };
listBoxList.Add(person);
listBoxList.Add(new Person() { Id = "a1", Name = "a11" });
listBoxList.Add(new Person() { Id = "a2", Name = "a22" });
//初始化数据
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" });
person.Children.Add(new Person() { Id = "", Name = "" }); //控件加载数据
this.m_ListBox.ItemsSource = listBoxList;
}
private void m_DataGrid_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Point pos = e.GetPosition(m_DataGrid);
HitTestResult result = VisualTreeHelper.HitTest(m_DataGrid, pos);
DataGrid dataGrid = this.FindVisualParent<DataGrid>(result.VisualHit);
if (dataGrid == null || dataGrid.SelectedItems.Count <= )
{
return;
} List<Person> list = new List<Person>();
for (int i = ; i < dataGrid.SelectedItems.Count; i++)
{
if (dataGrid.SelectedItems[i] is Person)
{
list.Add(dataGrid.SelectedItems[i] as Person);
}
}
DragDrop.DoDragDrop(m_DataGrid, list, DragDropEffects.Move);
}
private void m_ListBox_Drop(object sender, DragEventArgs e)
{
Point pos = e.GetPosition(m_ListBox);
HitTestResult result = VisualTreeHelper.HitTest(m_ListBox, pos);
if (result == null)
{
return;
}
ListBox listBox = this.FindVisualParent<ListBox>(result.VisualHit);
if (listBox == null || listBox.SelectedItem == null)
{
return;
} List<Person> persons = e.Data.GetData(typeof(List<Person>)) as List<Person>;
if (persons != null)
{
foreach (var item in persons)
{
Person person = listBox.SelectedItem as Person;
person.Children.Add(item);
person.ChangeChildCount(); m_SelectedListBoxPerson.Children.Remove(item);
m_SelectedListBoxPerson.ChangeChildCount();
}
}
}
private void m_ListBox_DragOver(object sender, DragEventArgs e)
{
Point pos = e.GetPosition(m_ListBox);
HitTestResult result = VisualTreeHelper.HitTest(m_ListBox, pos);
if (result == null)
{
return;
}
ListBoxItem listBoxItem = this.FindVisualParent<ListBoxItem>(result.VisualHit);
if (listBoxItem == null || listBoxItem.Content == null || !(listBoxItem.Content is Person))
{
return;
} m_ListBox.SelectedItem = listBoxItem.Content;
m_ListBox.Focus();
}
private void m_ListBoxButton_Click(object sender, RoutedEventArgs e)
{
if (m_SelectedListBoxButton != null)
{
m_SelectedListBoxButton.IsEnabled = true;
m_SelectedListBoxButton.Content = "展示";
}
m_SelectedListBoxButton = sender as Button;
m_SelectedListBoxButton.Content = "待分配数据集合";
m_SelectedListBoxButton.IsEnabled = false;
m_ListBox.SelectedItem = m_SelectedListBoxButton.Tag;
m_ListBox.Focus();
m_SelectedListBoxPerson = m_ListBox.SelectedItem as Person;
this.m_DataGrid.ItemsSource = m_SelectedListBoxPerson.Children;
} private T FindVisualParent<T>(DependencyObject obj) where T : class
{
while (obj != null)
{
if (obj is T)
return obj as T;
obj = VisualTreeHelper.GetParent(obj);
}
return null;
}
} class Person : INotifyPropertyChanged
{
public string Id { get; set; }
public string Name { get; set; }
public int ChildCount
{
get {
return this.Children.Count;
}
}
public ObservableCollection<Person> Children { get; set; }
public void ChangeChildCount()
{ this.Changed("ChildCount");
} public Person()
{
this.Children = new ObservableCollection<Person>();
} #region 属性更改通知
public event PropertyChangedEventHandler PropertyChanged;
private void Changed(string PropertyName)
{
if (this .PropertyChanged != null)
this.PropertyChanged(this , new PropertyChangedEventArgs(PropertyName));
}
#endregion
}
}

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