ASP.NET.in.a.Nutshell.Second.Edition [Electronic resources] نسخه متنی

This class represents an item in the StateBag
collection and is used to track changes to that item. The actual
stored object is contained in the Value property.
An additional piece of information is provided in the
IsDirty property, which is True
if the item has been changed since being saved into the
StateBag collection. Changes to an item in the
StateBag are saved when the ASP.NET framework
calls the Control.SaveViewState( ) method.

When you retrieve an option from the StateBag
collection using the default indexer
StateBag.Item, you will receive the actual object.
If, however, you want to enumerate through the
StateBag collection using for
each syntax, you should create a
StateItem enumerator. You can also retrieve a
StateItem object from the StateBag.Add(
) method.

public sealed class 
StateItem  {
// Public Instance Properties
public bool 
IsDirty {set; get; }
public object 
Value {set; get; }
}

Returned By

StateBag.Add( )