WPF 自定义一个控件，当点击按钮是触发到ViewModel(业务逻辑部分)和Xaml路由事件(页面逻辑部分)

region - 用于绑定ViewModel部分 -

public ICommand Command
{
get { return (ICommand)GetValue(CommandProperty); }
set { SetValue(CommandProperty, value); }
}

// Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc...
public static readonly DependencyProperty CommandProperty =
DependencyProperty.Register("Command", typeof(ICommand), typeof(MyUserControl), new PropertyMetadata(default(ICommand)));

public object CommandParameter
{
get { return (object)GetValue(CommandParameterProperty); }
set { SetValue(CommandParameterProperty, value); }
}

// Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc...
public static readonly DependencyProperty CommandParameterProperty =
DependencyProperty.Register("CommandParameter", typeof(object), typeof(MyUserControl), new PropertyMetadata(default(object)));

public IInputElement CommandTarget { get; set; }

endregion

region 用于Xaml触发路由事件部分

//声明和注册路由事件
public static readonly RoutedEvent MyEventRoutedEvent =
EventManager.RegisterRoutedEvent("MyEvent", RoutingStrategy.Bubble, typeof(EventHandler), typeof(MyUserControl));
//CLR事件包装
public event RoutedEventHandler MyEvent
{
add { this.AddHandler(MyEventRoutedEvent, value); }
remove { this.RemoveHandler(MyEventRoutedEvent, value); }
}

//激发路由事件,借用Click事件的激发方法

protected void OnMyEvent()
{
RoutedEventArgs args = new RoutedEventArgs(MyEventRoutedEvent, this);
this.RaiseEvent(args);
}

endregion

///

内部触发的路由事件和自定义命令方法

private void Button_Click(object sender, RoutedEventArgs e)
{
//命令作用于命令目标
if (this.Command != null)
{
this.Command.Execute(CommandParameter);

this.OnMyEvent();
}
}

<local:MyUserControl Grid.Row="1" Command="{Binding RelayCommand}" CommandParameter="Sumit">
local:MyUserControl.Triggers







</local:MyUserControl.Triggers>
</local:MyUserControl>