INotifyDataErrorInfo Interface
Defines members that data entity classes can implement to provide custom synchronous and asynchronous validation support.
Assembly: System (in System.dll)
| Name | Description | |
|---|---|---|
![]() | HasErrors | Gets a value that indicates whether the entity has validation errors. |
| Name | Description | |
|---|---|---|
![]() | GetErrors(String^) | Gets the validation errors for a specified property or for the entire entity. |
| Name | Description | |
|---|---|---|
![]() | ErrorsChanged | Occurs when the validation errors have changed for a property or for the entire entity. |
This interface enables data entity classes to implement custom validation rules and expose validation results asynchronously. This interface also supports custom error objects, multiple errors per property, cross-property errors, and entity-level errors. Cross-property errors are errors that affect multiple properties. You can associate these errors with one or all of the affected properties, or you can treat them as entity-level errors. Entity-level errors are errors that either affect multiple properties or affect the entire entity without affecting a particular property.
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.1
Windows Phone
Available since 8.1


