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我正在创建一个继承自ItemsControl的WPF自定义控件。在我的控件的ControlTemplate中,我有一个ItemsPresenter。问题是我需要能够在项目展示者中获取内容以填充整个内容区域。在下面的代码中,我有一个破解代码的简单例子,也是我想要完成的。 BTW将HorizontalAlignment和VerticalAlignment设置为Stretch会导致内容水平扩展,但不是垂直扩展。ItemsControl阻止项目内容扩展以填充其容器
<Window x:Class="yada"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="768" Width="1024">
<Grid>
<Grid.Resources>
<Style TargetType="Border" x:Key="stepBorder">
<Setter Property="Background" Value="CadetBlue"></Setter>
<Setter Property="BorderBrush" Value="Green" ></Setter>
<Setter Property="BorderThickness" Value="2"></Setter>
<Setter Property="Padding" Value="25"></Setter>
</Style>
</Grid.Resources>
<TabControl Margin="0,20,0,0">
<TabItem Header="Broken">
<Border>
<ItemsControl>
<ItemsControl.Items>
<Control>
<Control.Template>
<ControlTemplate>
<Border Style="{StaticResource stepBorder}">
<TextBlock Text="Border fills small region near the top"></TextBlock>
</Border>
</ControlTemplate>
</Control.Template>
</Control>
</ItemsControl.Items>
</ItemsControl>
</Border>
</TabItem>
<TabItem Header="Works">
<Border>
<Control>
<Control.Template>
<ControlTemplate>
<Border Style="{StaticResource stepBorder}" >
<TextBlock Text="Border fills entire control"></TextBlock>
</Border>
</ControlTemplate>
</Control.Template>
</Control>
</Border>
</TabItem>
</TabControl>
</Grid>
</Window>
这里是我的控件的一些代码。我不能把它全部包括进来,那里太多了。我认为这是相关的部分,但是:
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:Wizard}">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" x:Name="ContentRow" />
<RowDefinition Height="{Binding ElementName= NavButtonPanel,Path=ActualHeight}"></RowDefinition>
</Grid.RowDefinitions>
<ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" x:Name="ContentScrollViewer" MaxHeight="{Binding ElementName=ContentRowHeight, Path=ActualHeight}">
<ItemsPresenter
x:Name="Presenter"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}">
</ItemsPresenter>
</ScrollViewer>
<Border Style="{TemplateBinding NavButtonPanelStyle}" Grid.Row="1" x:Name="NavButtonPanel">
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right" >
</StackPanel>
</Border>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="ItemTemplate">
<Setter.Value>
<DataTemplate></DataTemplate>
</Setter.Value>
</Setter>