INotifyDataErrorInfo Interface
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Defines members that data entity classes can implement to provide custom synchronous and asynchronous validation support.
Namespace: System.ComponentModel
Assembly: System (in System.dll)
The INotifyDataErrorInfo type exposes the following members.
| 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.
Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
