internal void OnGot(object sender, DependencyPropertyGotEventArgs e)
{
if (this.Got != null)
{
this.Got(sender, e);
}
}
internal object GetValue(DependencyProperty dp, bool ignoreExpression)
{
var ctx = GetContext(dp.Id);
var value = LoadPropertyValue(dp, ignoreExpression);
if (!ctx.InCallBack)
{
//先进行对象内部回调方法
if (dp.GotValueCallback != null)
{
ctx.InCallBack = true;
dp.GotValueCallback(this, ref value);
ctx.InCallBack = false;
}
if (dp.IsRegisteredGot || this.PropertyGot != null)
{
var e = new DependencyPropertyGotEventArgs(dp, value);
//再执行属性公共挂载的事件
if (dp.IsRegisteredGot)
{
ctx.InCallBack = true;
dp.OnGot(this, e);
ctx.InCallBack = false;
value = e.Value;
}
//最后执行对象级别挂载的事件
if (this.PropertyGot != null)
{
ctx.InCallBack = true;
this.PropertyGot(this, e);
ctx.InCallBack = false;
value = e.Value;
}
}
}
return(value);
}
internal void OnGot(object sender, DependencyPropertyGotEventArgs e)
{
this.DefaultMetadata.OnGot(sender, e);
}
