WPF 基础

类继承图

命令

CommandTarget属性可以用来重新设置命令目标

<StackPanel>
        <TextBox Name="txtSomeText"
                 Width="220" Height="25" Margin="10"/>
        <Button Content="Paste"
                Command="ApplicationCommands.Paste"
                CommandTarget="{Binding ElementName=txtSomeText}"
                Margin="10" Padding="10,3"
                HorizontalAlignment="Center" />
    </StackPanel>

本例点击按钮时，文本框会自带粘贴，不需要后台代码

 另一个场景就是上下文菜单

<MenuItem Command="{x:Static loc:MainWindow.GreetUserCommand}"
          CommandTarget="{Binding Path=PlacementTarget, RelativeSource={RelativeSource AncestorType={x:Type ContextMenu}}}"/>

文本格式

<TextBlock Margin="10" Height="100" FontSize="14" Width="290" TextWrapping="Wrap">
            We <Bold>few</Bold>, we happy <Bold>few</Bold>, we band of <Underline>brothers</Underline>;
For he to-day that sheds his <Italic>blood</Italic> with me
Shall be my <Underline>brother</Underline>; be he ne'er so <Italic>vile</Italic>,
This day shall <Bold>gentle</Bold> his <Italic>condition</Italic>;"
        </TextBlock>

ListView 使用 WrapPanel 需要禁用 ListView 的水平滚动，才能实现自动换行