INotifyDataErrorInfo.ErrorsChanged 事件

定义

当验证错误针对属性或整个实体更改时发生。Occurs when the validation errors have changed for a property or for the entire entity.

public:
 event EventHandler<System::ComponentModel::DataErrorsChangedEventArgs ^> ^ ErrorsChanged;
event EventHandler<System.ComponentModel.DataErrorsChangedEventArgs> ErrorsChanged;
event EventHandler<System.ComponentModel.DataErrorsChangedEventArgs>? ErrorsChanged;
member this.ErrorsChanged : EventHandler<System.ComponentModel.DataErrorsChangedEventArgs> 
Event ErrorsChanged As EventHandler(Of DataErrorsChangedEventArgs) 

事件类型

EventHandler<DataErrorsChangedEventArgs>

注解

每当返回值发生更改时,实现类应在用户界面线程上引发此事件 GetErrors ,即使返回值实现也是如此 INotifyCollectionChangedThe implementing class should raise this event on the user interface thread whenever the GetErrors return value changes, even if the return value implements INotifyCollectionChanged.

适用于