HttpCachePolicy.SetLastModified Method (System.Web)

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.NET Framework Class Library

HttpCachePolicy.SetLastModified Method

Sets the Last-Modified HTTP header to the DateTime value supplied.

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

Syntax

Visual Basic

Public Sub SetLastModified ( _
	date As DateTime _
)

public void SetLastModified(
	DateTime date
)

Visual C++

public:
void SetLastModified(
	DateTime date
)

member SetLastModified : 
        date:DateTime -> unit

Parameters

date: Type: System.DateTime
The new DateTime value for the Last-Modified header.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	date is later than the current DateTime.

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 Versions and Dependencies.

Examples

The following code example demonstrates how to set the Last-Modified header to a new date.

Visual Basic


Response.Cache.SetLastModified(DateTime.Parse("1/1/2001 00:00:01AM"))


Response.Cache.SetLastModified(DateTime.Parse("1/1/2001 00:00:01AM"));

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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.

Reference

HttpCachePolicy Class

System.Web Namespace