.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
david stephan
Gaurav Pal
Post New Web Links

How to response from HttpHandler

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :ASP.Net

I have url http://localhost/data/submit.dp. I have written HttpHanlder to handle the request and thats working fine. Once this request is processed how do i tell the caller that you are done successfully. ( Some kind of alert message) and then close that window.

Just to give you more information there is PDF file whose submit button's URL is set to http://localhost/data/submit.dp and upon clicking this PDF submit button the data get POST to server. and the handler reads the data. when the handler done reading i want to close the PDF file window which is broswer window with some message before closing.

View Complete Post

More Related Resource Links

Handling Response from HttpHandler


I need some help in handling HttpContext.Response object from httpHandler. Here is what im doing
1>User Clicks on Create PDF button to create a PDF file on the server. Server creates the PDF file and sets the URL
to HyperLink button. eg http:\\localhost\Data\myfile.pdf
2> User clicks on hyperlink to open the PDF in new browser window.
3>Enter some data and hit Submit button on the PDF. (NOTE the button is on the PDF itself)
4>PDF submits the data using POST method and URL. eg http:\\localhost\Submit.myext
5> I have written HttpHanlder to handle all the request of type .myext. The hanlder needs to read the data and create new file and return this new file using response.
reading the data and creating the new file is easy and already done.

Q: How do i send back this new file to the same open window. So that it will close the current opened file and open this new file. Response.WriteFile() does not seems to be working properly.
Q: Is Sending file from HttpHandler good? or should i do something else.

Response.BinaryWrite help needed


Hi all

Im new to .NET and stuck now, so i hope anyone can help my with my problem.

I have a MS SQL database where i have stored some documents as Binary data. I cant figure out how to retrieve them and show/download them in my browser.

I found some guides online and have try to put something together.


private void Write()
 int id = 0;
 string strID = Request.QueryString["id"];
 int.TryParse(strID, out id);

 var db = new ModelDataContext();
 var doc = db.DocumentDatas.Where(x => x.ID == id).FirstOrDefault();

 byte[] byteArray = File.ReadAllBytes(doc);


How do i fill the byteArray with the data?

Thanks in advance :)


Response.Redirect slow


I'm in the middle of migrating servers and on the new server Response.Redirect is extremely slow. It takes around 20 seconds for the browser to get the redirect. This is something that was quick on the existing server. It's an ASP.NET 2.0 application, both servers are running IIS6.

Additionally, if I "manually" do the redirect, it's fast. For example:

Existing way:


takes around 20 seconds on the new server

New way:

Response.Status = "302 Moved Temporarily";
Response.AddHeader("Location", url);

is fast on the new server.

Any ideas why Response.Redirect would be so slow on the new server?

HttpHandler works with Visual Studio Development Server debugging, but not otherwise


Hi all,

I'm new to HttpHandlers.  I am writing an HttpHandler that reads uploaded files directly from the request stream to provide progress that can be queried using an AJAX request.  For large files, this seems to be faster than having ASP.NET load the file contents into Request.Files and then streaming the file from there to wherever it goes (Linq to SQL into a VARBINARY column in an SQL Server database.)

My HttpHandler works perfectly when I'm debugging using the Visual Studio Development Server, but doesn't work otherwise.  The application pool for this application in IIS 7 is set to run in Classic Mode, and the Handler Mappings screen in IIS says that I must manage managed handlers in system.web/httpHandlers. 

I set up in my applications Web.config file.

<add verb="GET,POST" path="*.upload" type="Namespace.For.UploadHandler, AssemblyForUploadHandler"/>

It works great, so long as I don't debug with the "Use Local IIS Web server" option.

What else do I need to do to get this to work?


spoofing a Page in the httpHandler.



I'm trying to spoof a System.Web.UI.Page in my httphandler, and while this works to some degree.. the "page" needs some added query strings to make this complete. Note below that I'm passing in a virtual path to the Page instance. Can anyone help? I tried adding the query strings to the p.Request object after the Page instance has been instantitated, but I believe the error is -- "Request is not available in this context"

Page p = (Page)BuildManager.CreateInstanceFromVirtualPath(virtualUrl, typeof(Page));

IHttpHandler handler = p;


Generate rss feed with HTTPHandler





I'm looking for link/tutorials/code samples on How to create HttpHandler for generating rss feeds for a website.




URL Routing and Existing HttpHandler problems


Hello everyone,

I have a problem:

I am currently using 2 features: 

1. HttpHandler

Registering the path="res.aspx" verb="*"

2. URL Routing:

Registering with this pattern: "Company/Edit/{*companyId}","~/CompanyEdit.aspx"

In my CompanyEdit.aspx page, I used httphandler res.aspx to generate some images at client.

  • res.aspx?img=1
  • res.aspx?img=3

Now the problem is here, the page is load success with companyId = "12345", but when the images was loaded at client, it loaded the CompanyEdit.aspx again and show error with wrong id.  

I have debug and find the problem that because when image's urls were generated to client with url=res.aspx?img=1, url=res.aspx?img=3, the asp.net will understand that they are Company/Edit/res.aspx?img=1, Company/Edit/res.aspx?img=3 when it maps with URL Routing pattern.

=> So the CompanyEdit.aspx was load again with wrong id (id now is "res.aspx"). 

So, do you have any ideas to solve this problem, or other design.

Thanks, and best regard

Test Run: Web Application HTTP Request-Response Test Automation with JavaScript


Write a simple browser-based request-response test automation using JavaScript that's platform independent and useful when you are working in a highly dynamic environment.

James McCaffrey

MSDN Magazine January 2010

Test Run: Request-Response Testing With F#


This month we show you how to use F# to perform HTTP request-response testing for ASP.NET Web applications.

James McCaffrey

MSDN Magazine July 2009

Test Run: Request/Response Testing with Windows PowerShell


Did you know you can use Windows PowerShell to perform lightweight request/response testing for an ASP.NET Web app? Here's how.

Dr. James McCaffrey

MSDN Magazine May 2008

Talk Back: Voice Response Workflows with Speech Server 2007


Speech Server 2007 lets you create sophisticated voice-response applications with Microsoft .NET Framework and Visual Studio tool integration. Here's how.

Michael Dunn

MSDN Magazine April 2008

Foundations: Build a Queued WCF Response Service


With queued calls in Windows Communication Foundation you can perform work in a disconnected manner by sending messages through Microsoft Message Queuing. Juval Lowy explains.

Juval Lowy

MSDN Magazine February 2007



I need to open a new window with Response.Redirect, Is it possible?

no response when refreshing reportviewer


Hi guys, I've been struggling with this for some time now, but I can't figure out why it's not working. I got a gridview in which I'm selecting a specific row. This gives me a string back, which is used to load some data inside a datatable, using DAL The callback works and it's also giving the correct string to retrieve the wanted data. But when I'm trying to use this fresh data update my reportviewer (.rdlc) nothing happens. For now I'm testing the event with a simple button, but even with the button nothing happens. Does anyone know what I'm missing The DAL is working correct and I'm using .NET 3.5

<rsweb:ReportViewer ID="ReportViewer" runat="server" Font-Names="Verdana" 
                                 InteractiveDeviceInfos="(Collection)"  WaitMessageFont-Names="Verdana" WaitMessageFont-Size="14pt" >
        <LocalReport ReportPath="Office\Reporting\InvoiceReport.rdlc" />                                
    protected void Button1_Click(object sender, EventArgs e)
        string strInvoiceId = "603663";

        tblInvoiceTableAdapter InvoiceAdapt = new tblInvoiceTableAdapter();
        TGU.tblInvoiceDataTable invoiceDt = InvoiceAdapt.GetIn

Adding a cookie to a response.redirect vs. httpWebRequest


Hello, I will try to be as clear as I can be.  I'm sure this question has been asked but I can't find a suitable answer for this particular situation.

I need to be able to redirect the browser to a new 3rd party page while at the same time supplying a cookie required for some form of authentication on the 3rd party site.

I have managed to get this to work in the following manner:


'SessionID is predetermined by another HttpWebRequest/Response  

Dim sessionCookie As New Cookie("ezproxy", sessionID.Substring(1), "/", ".someother.site")

Dim CookieJar As New CookieContainer


rRequest = HttpWebRequest.Create("where I want to go")

rRequest.CookieContainer = CookieJar

rRequest.Method = "GET"


'Make the request and get the response.

rResponse = rRequest.GetResponse()


'Save cookie(s)

If (rResponse.Cookies.Count <> 0) Then

For Each cook

Web Service that will receive xml request and send xml response


I am trying to create a web service that can do the following functionality:

Request XML 

<?xml version="1.0" encoding="UTF-8"?>
<Authentication UserName="test" Password="test" MyId="0987">

Response XML - After authenticating request xml from client send them back the following response:

<?xml version="1.0" encoding="UTF-8"?>
   <Test MyId="0987">
       <TestType id="11"></TestType>
       <TestType id="22"></TestType>

How can I create web service to do this.

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend