StateManagedCollection::OnValidate Method
When overridden in a derived class, validates an element of the StateManagedCollection collection.
Assembly: System.Web (in System.Web.dll)
Parameters
- value
- Type: System::Object
The IStateManager to validate.
| Exception | Condition |
|---|---|
| ArgumentNullException | value is nullptr. |
The OnValidate method is called to validate the object manipulated through the StateManagedCollection implementation of the IList interface methods. The default implementation is to verify that the object manipulated by the collection is not nullptr; however, collections derived from StateManagedCollection override the OnValidate method to perform any additional validation, such as type-checking.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.