我已经实现了在此处找到的附加命令行为模式,它可以很好地允许边框具有在 ViewModel 中触发的左键或右键单击事件:
XAML:
<Border Background="Yellow" Width="350" Margin="0,0,10,0" Height="35" CornerRadius="2"
c:CommandBehavior.Event="MouseLeftButtonDown"
c:CommandBehavior.Command="{Binding PressedLeftButton}"
c:CommandBehavior.CommandParameter="MainBorder123">
<TextBlock Text="this is the click area"/>
</Border>
代码背后:
public ICommand PressedLeftButton { get; private set; }
public MainViewModel()
{
Output = "original value";
PressedLeftButton = new SimpleCommand
{
ExecuteDelegate = parameterValue => {
Output = String.Format("left mouse button was pressed at {0} and sent the parameter value \"{1}\"", DateTime.Now.ToString(), parameterValue.ToString());
}
};
}
但是,如何将两个附加行为附加到一个元素,例如,我想做类似以下的事情,但它当然会给我一个错误:
<Border Background="Yellow" Width="350" Margin="0,0,10,0" Height="35" CornerRadius="2"
c:CommandBehavior.Event="MouseLeftButtonDown"
c:CommandBehavior.Command="{Binding PressedLeftButton}"
c:CommandBehavior.CommandParameter="MainBorder123"
c:CommandBehavior.Event="MouseRightButtonDown"
c:CommandBehavior.Command="{Binding PressedRighttButton}"
c:CommandBehavior.CommandParameter="MainBorder123"
>