C＃-无法实现“ INotifyDataErrorInfo”

Question

I have ac# class.

  class MyClass: AnotherClass, INotifyDataErrorInfo
  {
           ..................             
  }

I need to implement "INotifyDataErrorInfo" interface too. But it comes in Red Colour and does not identify the namespace of the interface. I have added "using System.ComponentModel;" too. But it does not work.

anyone knows why it is ?

Answer 1

INotifyDataErrorInfo is in the namespace System.ComponentModel in the assembly System . Make sure you have using System.ComponentModel; in your source code and the Project (.csproj) references the System.dll .