WPF 中的DataTemplate 的嵌套

<Window x:Class="WPF.MainWindow"

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

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

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

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

xmlns:local="clr-namespace:WPF"

mc:Ignorable="d"

Title="MainWindow" Height="450" Width="800">

<Window.Resources>

<DataTemplate x:Key="kk">

<Grid>

<Grid.RowDefinitions>

<RowDefinition></RowDefinition>

<RowDefinition></RowDefinition>

</Grid.RowDefinitions>

<Button>222222222</Button>

<Ellipse Grid.Row="1" Height="50" Width="50" Fill="Red">

</Ellipse>

</Grid>

</DataTemplate>

<DataTemplate x:Key="studentItemTemplate">

<Grid>

<Rectangle Fill="Red" Width="200" Height="200"></Rectangle>

</Grid>

</DataTemplate>

<DataTemplate x:Key="studentJudgeTemplate">

<Grid>

<Grid.RowDefinitions>

<RowDefinition></RowDefinition>

<RowDefinition></RowDefinition>

</Grid.RowDefinitions>

<Label >this is template 222</Label>

<Label Grid.Row="1" ContentTemplate="{StaticResource studentItemTemplate}">

</Label>

</Grid>

</DataTemplate>

</Window.Resources>

<Grid>

<Label ContentTemplate="{StaticResource studentJudgeTemplate}">

</Label>

</Grid>

</Window>

content presentor 的使用

------------------------------------------------------------

<UserControl x:Class="WPF.Login"

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:WPF"

mc:Ignorable="d"

d:DesignHeight="450" d:DesignWidth="800" x:Name="uc">

<UserControl.Resources>

<Style x:Key="kk" TargetType="Label">

<Setter Property="Template">

<Setter.Value>

<ControlTemplate TargetType="Label">

<Grid>

<Ellipse Margin="34,45,44,117" Fill="{TemplateBinding Background}"/>

</Grid>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</UserControl.Resources>

<Grid>

<Grid.RowDefinitions>

<RowDefinition></RowDefinition>

<RowDefinition></RowDefinition>

</Grid.RowDefinitions>

<Button Grid.Row="0">111111111111</Button>

<ContentPresenter Grid.Row="1" x:Name="lab" Content="{Binding MM}">

<!--<Ellipse Width="100" Height="100" Fill="Red">

</Ellipse>-->

</ContentPresenter>

</Grid>

</UserControl>

C# code

-------------------------

public partial class Login : UserControl

{

public Login()

{

InitializeComponent();

this.Loaded += Login_Loaded;

this.DataContext = this;

}

private void Login_Loaded(object sender, RoutedEventArgs e)

{

}

public static readonly DependencyProperty MMProperty = DependencyProperty.Register("MM", typeof(object), typeof(Login));

public object MM

{

get { return (object)GetValue(MMProperty); }

set { SetValue(MMProperty, value); }

}

private static bool setV(Object obj)

{

// lab.Content = obj;

return true;

}

}