The asynchronous time-out of the page represents the amount of time that the page will wait to perform asynchronous tasks. In most circumstances, do not set this property in code. Set the page asynchronous time-out interval using the pages element of the Web configuration file or in the @ Page directive. Values set in the page configuration section are overwritten by the page directive.

Define your asynchronous task using the System.Web.UI.PageAsyncTask class and register a beginning, an ending, and a time-out handler. If the asynchronous task does not complete in the time interval specified, the time-out handler will be invoked.

Namespace: System.Web.UI
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 2.0.0.0