Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

StateManagedCollection.OnValidate Method

When overridden in a derived class, validates an element of the StateManagedCollection collection.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

protected virtual void OnValidate(
	Object value
)

Parameters

value
Type: System.Object

The IStateManager to validate.

ExceptionCondition
ArgumentNullException

value is null.

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 null; however, collections derived from StateManagedCollection override the OnValidate method to perform any additional validation, such as type-checking.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
Show:
© 2015 Microsoft