Parameter.ViewState Property
Assembly: System.Web (in system.web.dll)
A parameter's view state is the accumulation of all its property values. To preserve these values across HTTP requests, ASP.NET server controls use this property, which is an instance of the StateBag class, to store the property values. The values are then passed as a variable to an HTML hidden input element when subsequent requests are processed. View state is enabled for all server controls by defaultDeveloping High-Performance ASP.NET Applications.
For more information about dictionaries and how to use them, see Collections and Data Structures.
The following code example demonstrates how to use the view-state object to store parameter object state in a class that extends the Parameter class. This code example is part of a larger example provided for the Parameter class overview.
// The DataValue can be any arbitrary object and is stored in ViewState.
/** @property
*/
public Object get_DataValue()
{
return get_ViewState().get_Item("Value");
} //get_DataValue
/** @property
*/
public void set_DataValue(Object value)
{
get_ViewState().set_Item("Value", value);
} //set_DataValue
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.