Sets the Last-Modified HTTP header to the DateTime value supplied.
Namespace: System.Web
Assembly: System.Web (in System.Web.dll)
Syntax
Visual Basic (Declaration)
Public Sub SetLastModified ( _
date As DateTime _
)Dim instance As HttpCachePolicy
Dim date As DateTime
instance.SetLastModified(date)
public void SetLastModified(
DateTime date
)public:
void SetLastModified(
DateTime date
)public function SetLastModified(
date : DateTime
)
Exceptions

Remarks
The Last-Modified HTTP header time stamps the document with the DateTime value indicating when the document was last modified.
This method will fail if the caching restrictiveness hierarchy is violated.
SetLastModified is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.

Examples
The following code example demonstrates how to set the Last-Modified header to a new date.
Response.Cache.SetLastModified(DateTime.Parse("1/1/2001 00:00:01AM"))
Response.Cache.SetLastModified(DateTime.Parse("1/1/2001 00:00:01AM"));
Response.Cache.SetLastModified(DateTime.Parse("1/1/2001 00:00:01AM"))

Platforms
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

See Also