UpdatePanel.Attributes Property
Gets the cascading style sheet (CSS) attributes collection of the UpdatePanel control.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The Attributes property contains a collection of CSS style attributes that can be used in the enclosing div element of the UpdatePanel control.
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.