Gets or sets the number of milliseconds to wait before initiating a postback.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The specified value is less than or equal to zero.
Setting the property to a small value can generate significant traffic to and from the Web server. Use the Timer control to refresh the content only as often as necessary.
When you change the value of the property, the ECMAScript timing code running in the browser will be reset when the updates are rendered.
The following example shows an UpdatePanel control that displays a randomly generated stock price and the time that the stock price was generated. By default, the Timer control updates the content in the UpdatePanel control every 10 seconds. The user can decide to update the stock price every 10 seconds, every 60 seconds, or not at all. The property is set to the user's choice.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.