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 SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.