TabControl不会伸展

Question

我无法在制表符控件中获取制表符控件来填充其容器。我认为这是一些我忽视或尚未找到的简单属性。在下面的xaml中，我希望TabControl'sub'能够完全填充画布'canvas2'。

谢谢你， Venkat

<Border BorderBrush="AliceBlue" BorderThickness="1,1,1,1">
    <TabControl name="Main">
        <TabItem Header="Test1">
            <DockPanel LastChildFill="True">
                <Border BorderBrush="Green" BorderThickness="1,1,1,1">
                    <Canvas Width="350" Height="200" DockPanel.Dock="Left">

                    </Canvas>
                </Border>
                <Border BorderBrush="Red" BorderThickness="1,1,1,1">
                    <Canvas name="canvas2">
                        <Border BorderBrush="Yellow" BorderThickness="1,1,1,1">                                
                                <TabControl Height="600" HorizontalAlignment="Stretch"  name="sub">
                                    <TabItem Header="Rights Test 1" HorizontalAlignment="Stretch">
                                        <Canvas></Canvas>
                                    </TabItem>
                                    <TabItem Header="Rights Test 2">
                                        <Canvas></Canvas>
                                    </TabItem>
                                </TabControl>                                
                        </Border>
                    </Canvas>
                </Border>
            </DockPanel>
        </TabItem>
    </TabControl>
</Border>

<Border BorderBrush="AliceBlue" BorderThickness="1,1,1,1"> <TabControl name="Main"> <TabItem Header="Test1"> <DockPanel LastChildFill="True"> <Border BorderBrush="Green" BorderThickness="1,1,1,1"> <Canvas Width="350" Height="200" DockPanel.Dock="Left"> </Canvas> </Border> <Border BorderBrush="Red" BorderThickness="1,1,1,1"> <Canvas name="canvas2"> <Border BorderBrush="Yellow" BorderThickness="1,1,1,1"> <TabControl Height="600" HorizontalAlignment="Stretch" name="sub"> <TabItem Header="Rights Test 1" HorizontalAlignment="Stretch"> <Canvas></Canvas> </TabItem> <TabItem Header="Rights Test 2"> <Canvas></Canvas> </TabItem> </TabControl> </Border> </Canvas> </Border> </DockPanel> </TabItem> </TabControl> </Border>

Answer 1

Canvas不会伸展以填充他们给定的空间。所以摆脱canvas2。