private void RaisePropertyChanged <T>(DomainProperty property, T newValue, T oldValue)
{
if (IsConstructing)
{
return; //构造时，不触发任何事件
}
if (!property.IsRegisteredChanged && this.PropertyChanged == null)
{
return;
}
var ctx = GetRunContext(property.RuntimeChangedId);
if (!ctx.InCallBack)
{
var args = new DomainPropertyChangedEventArgs(property, newValue, oldValue);
//先进行对象内部回调方法
ctx.InCallBack = true;
property.ChangedChain.Invoke(this, args);
args.NewValue = this.GetValue(property);//同步数据
ctx.InCallBack = false;
//最后执行对象级别挂载的事件
if (this.PropertyChanged != null)
{
ctx.InCallBack = true;
this.PropertyChanged(this, args);
args.NewValue = this.GetValue(property);//同步数据
ctx.InCallBack = false;
}
}
}
public void Invoke(DomainObject domainObject, DomainPropertyChangedEventArgs value)
{
//属性值被改变的行为链直接遍历所有方法并执行
foreach (var method in _methods)
{
method(domainObject, value);
}
}