private void Route(object sender, EntityRoutedEventArgs e)
{
if (e.Handled)
{
return;
}
switch (e.Event.Type)
{
case EntityRoutedEventType.BubbleToParent:
var parent = this.FindParentEntity();
if (parent != null)
{
parent.OnRoutedEvent(sender, e);
}
break;
case EntityRoutedEventType.BubbleToTreeParent:
if (_treeParent != null)
{
_treeParent.OnRoutedEvent(sender, e);
}
break;
default:
break;
}
}
private void Route(object sender, EntityRoutedEventArgs e)
{
if (e.Handled) return;
switch (e.Event.Type)
{
case EntityRoutedEventType.BubbleToParent:
var parent = this.FindParentEntity();
if (parent != null)
{
parent.OnRoutedEvent(sender, e);
}
break;
case EntityRoutedEventType.BubbleToTreeParent:
if (_treeParent != null)
{
_treeParent.OnRoutedEvent(sender, e);
}
break;
default:
break;
}
}
/// <summary>
/// 触发某个路由事件
/// </summary>
/// <param name="indicator"></param>
/// <param name="args"></param>
protected void RaiseRoutedEvent(EntityRoutedEvent indicator, object args)
{
var arg = new EntityRoutedEventArgs
{
Source = this,
Event = indicator,
Args = args
};
this.Route(this, arg);
}
/// <summary>
/// 触发某个路由事件
/// </summary>
/// <param name="indicator"></param>
/// <param name="args"></param>
protected void RaiseRoutedEvent(EntityRoutedEvent indicator, object args)
{
var arg = new EntityRoutedEventArgs
{
Source = this,
Event = indicator,
Args = args
};
this.Route(this, arg);
}
/// <summary>
/// 触发某个路由事件
/// </summary>
/// <param name="indicator"></param>
/// <param name="args"></param>
protected void RaiseRoutedEvent(EntityRoutedEvent indicator, EventArgs args)
{
if (indicator.Type == EntityRoutedEventType.BubbleToTreeParent)
{
throw new InvalidOperationException("列表类上只支持 BubbleToParent 的实体路由事件。");
}
//如果没有父实体，则直接返回
var parent = this.Parent;
if (parent == null)
{
return;
}
var arg = new EntityRoutedEventArgs
{
Source = this,
Event = indicator,
Args = args
};
parent.RouteByList(this, arg);
}
internal void RouteByList(object sender, EntityRoutedEventArgs e)
{
this.OnRoutedEvent(sender, e);
}
/// <summary>
/// 发生某个路由事件
/// 子类重写此方法以实现监听路由事件。
///
/// 注意：子类在重写时，调用基类方法就表示继续路由。一般在最后才调用基类的方法。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnRoutedEvent(object sender, EntityRoutedEventArgs e)
{
this.Route(sender, e);
}
/// <summary>
/// 发生某个路由事件
/// 子类重写此方法以实现监听路由事件。
///
/// 注意：子类在重写时，调用基类方法就表示继续路由。一般在最后才调用基类的方法。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnRoutedEvent(object sender, EntityRoutedEventArgs e)
{
this.Route(sender, e);
}
internal void RouteByList(object sender, EntityRoutedEventArgs e)
{
this.OnRoutedEvent(sender, e);
}