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ScriptManager.OnPreRender Method

Raises the PreRender event, and registers script files and services for partial-page updates.

Namespace:  System.Web.UI
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

protected internal override void OnPreRender(
	EventArgs e


Type: System.EventArgs
The event data.


The browser that made the partial-page request does not support at least DOM Level 1.0.

For information about the DOM, see the Document Object Model (DOM) Level 1 Specification on the World Wide Web Consortium (W3C) Web site.

Notes to Inheritors

When overriding this method, call the base OnPreRender method so that script blocks and services are correctly handled for partial-page rendering.

.NET Framework

Supported in: 4, 3.5

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.