Gets a value indicating whether another request can use the
IHttpHandler instance.
Namespace: System.Web
Assembly: System.Web (in system.web.dll)

Syntax
Visual Basic (Declaration)
ReadOnly Property IsReusable As Boolean
Dim instance As IHttpHandler
Dim value As Boolean
value = instance.IsReusable
property bool IsReusable {
bool get ();
}
/** @property */
boolean get_IsReusable ()
function get IsReusable () : boolean
Property Value
true if the
IHttpHandler instance is reusable; otherwise,
false.

Remarks
You explicitly set the IsReusable property to true or false by code you provide that overrides the IsReusable property accessor (getter).

Example
The following code example writes four lines of text to the HTTP output stream in response to a client request for a page named handler.aspx. All requests for handler.aspx are serviced by the MyHttpHandler class in the namespace HandlerExample contained in the assembly HandlerTest.dll.
' Name this Visual Basic file HandlerTest.vb and compile it with the
' command line: vbc /target:library /r:System.Web.dll HandlerTest.vb.
' Copy HandlerTest.dll to your \bin directory.
Imports System.Web
Namespace HandlerExample
Public Class MyHttpHandler
Implements IHttpHandler
' Override the ProcessRequest method.
Public Sub ProcessRequest(context As HttpContext) _
Implements IHttpHandler.ProcessRequest
context.Response.Write("<H1>This is an HttpHandler Test.</H1>")
context.Response.Write("<p>Your Browser:</p>")
context.Response.Write("Type: " & context.Request.Browser.Type & "<br>")
context.Response.Write("Version: " & context.Request.Browser.Version)
End Sub
' Override the IsReusable property.
Public ReadOnly Property IsReusable() As Boolean _
Implements IHttpHandler.IsReusable
Get
Return True
End Get
End Property
End Class
End Namespace
'______________________________________________________________
'
' To use this handler, include the following lines in a
' Web.config file (be sure to remove the comment markers).
'
'<configuration>
' <system.web>
' <httpHandlers>
' <add verb="*" path="handler.aspx" type="HandlerExample.MyHttpHandler,HandlerTest"/>
' </httpHandlers>
' </system.web>
'</configuration>
// Name this C# file HandlerTest.cs and compile it with the
// command line: csc /t:library /r:System.Web.dll HandlerTest.cs.
// Copy HandlerTest.dll to your \bin directory.
using System.Web;
namespace HandlerExample
{
public class MyHttpHandler : IHttpHandler
{
// Override the ProcessRequest method.
public void ProcessRequest(HttpContext context)
{
context.Response.Write("<H1>This is an HttpHandler Test.</H1>");
context.Response.Write("<p>Your Browser:</p>");
context.Response.Write("Type: " + context.Request.Browser.Type + "<br>");
context.Response.Write("Version: " + context.Request.Browser.Version);
}
// Override the IsReusable property.
public bool IsReusable
{
get { return true; }
}
}
}
/*
______________________________________________________________
To use this handler, include the following lines in a Web.config file.
<configuration>
<system.web>
<httpHandlers>
<add verb="*" path="handler.aspx" type="HandlerExample.MyHttpHandler,HandlerTest"/>
</httpHandlers>
</system.web>
</configuration>
*/
package HandlerExample ;
// Name this J# file HandlerTest.jsl and compile it with the
// command line: vjc /t:Library /r:System.Web.dll HandlerTest.jsl.
// Copy HandlerTest.dll to your \bin directory.
import System.Web.*;
public class MyHttpHandler implements IHttpHandler
{
// Override the ProcessRequest method.
public void ProcessRequest(HttpContext context)
{
context.get_Response().
Write("<H1>This is an HttpHandler Test.</H1>");
context.get_Response().
Write("<p>Your Browser:</p>");
context.get_Response().Write(("Type: "
+ context.get_Request().get_Browser().get_Type() + "<br>"));
context.get_Response().Write(("Version: "
+ context.get_Request().get_Browser().get_Version()));
} //ProcessRequest
// Override the IsReusable property.
/** @property
*/
public boolean get_IsReusable()
{
return true;
} //get_IsReusable
} //MyHttpHandler
/*
______________________________________________________________
To use this handler, include the following lines in a Web.config file.
<configuration>
<system.web>
<httpHandlers>
<add verb="*" path="handler.aspx"
type="HandlerTest.HandlerExample.MyHttpHandler,HandlerTest"/>
</httpHandlers>
</system.web>
</configuration>
*/
// Name this JScript file handlertest.js and compile it with the
// command line: jsc /t:library /r:system.web.dll handlertest.js
// Copy HandlerTest.dll to your bin directory.
import System.Web
package HandlerExample{
class MyHttpHandler implements IHttpHandler{
// Override the ProcessRequest method.
function IHttpHandler.ProcessRequest(context : HttpContext){
context.Response.Write("<H1>This is an HttpHandler Test.</H1>")
context.Response.Write("<p>Your Browser:</p>")
context.Response.Write("Type: " + context.Request.Browser.Type + "<br>")
context.Response.Write("Version: " + context.Request.Browser.Version)
}
// Override the IsReusable property.
function get IHttpHandler.IsReusable() : Boolean{
return true
}
}
}
//______________________________________________________________
//
// To use the above handler, use the following lines in a
// Web.config file (remove the comment markers)
//
//<configuration>
// <system.web>
// <httpHandlers>
// <add verb="*" path="handler.aspx" type="HandlerExample.MyHttpHandler,HandlerTest"/>
// </httpHandlers>
// </system.web>
//</configuration>

Platforms
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

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

See Also