如何为XAF设置默认属性值？

有三种方法设置默认值：

1.BaseObject.AfterConstruction，覆写AfterConstruction方法

public override void AfterConstruction() {
   base.AfterConstruction();
   Priority = Priority.Normal;
}

2.IXPObject.OnSaving，覆写OnSaving()方法

protected override void OnSaving() {
   Priority = Priority.Normal;
   base.OnSaving();
}

3.In a field declaration，在字段定义中

private Priority priority = Priority.Normal;
public Priority Priority {
   get { return priority; }
   set {
      SetPropertyValue("Priority", ref priority, value);
   }
}