[原] XAF 一个字段的值改变则另一个字段值也改变的实现

方法一：

protected override void OnChanged(string propertyName, object oldValue, object newValue)
{
base.OnChanged(propertyName, oldValue, newValue);
if ((!IsLoading) && (!IsDeleted) && (oldValue != newValue))
{
if (propertyName == "ItemA")
{
// todo
}
}
}
方法二：

public partial class MyViewController : ViewController
{
public MyViewController()
{
InitializeComponent();
RegisterActions(components);
}

protected override void OnActivated()
{
base.OnActivated();
((View as DetailView).FindItem("ItemA") as PropertyEditor).ValueStored += new EventHandler(MyViewController _ValueStored);
}

void MyViewController _ValueStored(object sender, EventArgs e)
{
((View as DetailView).FindItem("ItemB") as ListPropertyEditor).Refresh();
}

protected override void OnDeactivated()
{
((View as DetailView).FindItem("ItemA") as PropertyEditor).ValueStored -= new EventHandler(MyViewController _ValueStored);
base.OnDeactivated();
}
}
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