Gets or sets a value that indicates whether the Web application supports history point management.
To get or set property values for client API properties, you must call property accessor methods that are named with the get_ and set_ prefixes. For example, to get or set a value for a property such as cancel, you call the get_cancel or set_cancel methods.
var historyEnabled = Sys.Application.get_enableHistory(); Sys.Application.set_enableHistory(value);
Use the enableHistory property to enable history management in the Web application.
This property throws an exception if you try to set it after the Web application is initialized. It also throws an exception if history has been enabled in the ScriptManager control and you try to disable it by using this property.