public MultiOrganizationSelector()
{
InitializeComponent();//注意UI上的属性赋值逻辑在InitializeComponent中执行，因此我将OrganizationSelectVM的构造置于InitializeComponent之后
bool isLoaded = false;
//以上说法错误
//UI上的属性赋值逻辑在构造函数后执行，因此我将OrganizationSelectVM的构造置于Loaded事件中
this.Loaded += delegate
{
if (!isLoaded)
{
_dataContext = new OrganizationSelectVM(FilterCurrent, ShowAllLower, CanUserToggleShowAllLower, IsShowShopOnly);
var binding = new Binding();
binding.Source = _dataContext;
binding.Path = new PropertyPath("ShowAllLower");
binding.Mode = BindingMode.TwoWay;
this.SetBinding(MultiOrganizationSelector.ShowAllLowerProperty, binding);
//直接放在构造函数中不能反馈到绑定源，放在Loaded事件中可以，不知原因
SelectedOrganizationArray = _dataContext.DefaultOrSelectedOrganizations;//多处重复代码，只是为了客户端能收到通知，还有其它好的方式么？
isLoaded = true;
}
};
}
public MultiLowerOrganizationSelectWin(bool filterCurrent = true, IEnumerable <int> selectedIDs = null)
{
_dataContext = new OrganizationSelectVM(filterCurrent);
this.DataContext = _dataContext;
InitializeComponent();
if (selectedIDs != null)
{
//不放到Loaded中就不行(默认项未选中)，只能说坑爹
this.Loaded += delegate
{
_dataContext.SelectedIDs = selectedIDs;
RadGridView1_Filtered(null, null);
};
}
}
public MultiOrganizationSelectWin(OrganizationSelectVM dataContext)
{
_dataContext = dataContext;
this.DataContext = _dataContext;
InitializeComponent();
//if (_dataContext.DefaultOrSelectedOrganizations.Count() != 0)
//{
//不放到Loaded中就不行(默认项未选中)，只能说坑爹
this.Loaded += delegate
{
RadGridView1_Filtered(null, null);
_dataContext.PropertyChanged += _dataContext_PropertyChanged;
};
//}
}