Saves the changes to the view state for the SqlDataSourceView control since the time that the page was posted back to the server.
Assembly: System.Web (in System.Web.dll)
The method is primarily used by control developers.
View state is the accumulation of the values of the properties for a server control. These values are automatically placed in the ViewState property for the server control, which is an instance of the StateBag class. The ViewState value for the server control is then persisted to a string object after the save state stage of the server control life cycle.
When view state is saved, the string object that was persisted after the save state stage of the server control life cycle is returned to the client as a variable that is stored in an HTML Hidden element. When you author custom server controls, you can improve efficiency by overriding the method and modifying the ViewState property for your server control. For more information, see ASP.NET State Management Overview.