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SessionStateModule.Start Event

The event that occurs when a session is created.

Namespace:  System.Web.SessionState
Assembly:  System.Web (in System.Web.dll)

public event EventHandler Start

The Start event is raised at the beginning of a request when a new session is started. A new session is started if a request is made that does not contain a session identifier, the session identifier is invalid, or the session associated with a session identifier has expired.

The Session_OnStart event is used to perform any initialization work for a session such as setting up default values for session variables.

You can specify a handler for the Start event by adding a public subroutine named Session_OnStart to the Global.asax file.

For more information about the Global.asax file, see Global.asax Syntax.

The following code example shows the contents of a Global.asax file with the Session_OnStart and Session_OnEnd events defined.

<script language="C#" runat="server">
public void Session_OnStart()
{

}

public void Session_OnEnd()
{

}
</script>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, 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.

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