UpdatePanel::OnLoad Method
.NET Framework 4.5
Raises the Load event for the UpdatePanel control and invokes the Initialize method when partial-page rendering is not enabled.
Namespace: System.Web.UI
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
Notes to Inheritors
If you override the OnLoad method, make sure to call the base class so that the Load event will be raised.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.