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我有一个画布内的选项卡控件。我如何让TabControl使用其父项的全部宽度?如何获取TabControl以在wpf中使用其父项的完整宽度?
<UserControl
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:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk" x:Class="SilverlightApplication1.MainPage"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400">
<Canvas x:Name="LayoutRoot" Background="White" Margin="0,0,0,0">
<sdk:TabControl Width="400" Height="300" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" Margin="0,0" VerticalAlignment="Stretch" VerticalContentAlignment="Stretch" >
<sdk:TabItem Header="myResponse">
<Grid Background="#FFE5E5E5"/>
</sdk:TabItem>
<sdk:TabItem Header="TabItem">
<Grid Background="#FFE5E5E5"/>
</sdk:TabItem>
</sdk:TabControl>
为什么你首先使用'