Web Forms :: Httphandler (.ashx) To An (.aspx) Page?

Sep 8, 2010

How To Redirect from httphandler(.ashx) to an (.aspx) page in the same application ?


can some expert confirm better approach

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Similar Messages:

What ASHX HttpHandler Uses For

May 25, 2010

Can u explain me what ASHX HttpHandler uses for?

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Httphandler - Use Server Control Code Generation From .ashx?

Apr 28, 2010

I'm trying to take an existing bunch of code that was previously on a full .aspx page, and do the same stuff in a .ashx handler.

The code created an HtmlTable object, added rows and cells to those rows, then added that html table the .aspx's controls collection, then added it to a div that was already on the page.

I am trying to keep the code in tact but instead of putting the control into a div, actually generate the html and I'll return that in a big chunk of text that can be called via AJAX client-side.

HtmlTable errors out when I try to use the InnerHtml property (says it isn't supported), and when I try RenderControl, after making first a TextWriter and next an HtmlTextWriter object, I get the error that Page cannot be null.

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Web Forms :: How To Pass Value From ASPX To ASHX

Apr 21, 2012

Because i want concatinate that value with image filename.

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What's Differences Between .aspx And .ashx Pages

Mar 29, 2011

what are the differences between .aspx and .ashx pages. I use ashx now when I need to handle a request that called from code and return with a response.

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Ashx Vs Aspx For File Download

Dec 15, 2010

In a basic scenario where I have a GridView with files to download and link buttons to download them, is there any benefit at all for creating a custom http handler for streaming those files as opposed to simply streaming from the event handler of the download link button?

Edit: As some suggested code reuse would favor the handler, however it's not an issue in this particular case. The handler is also faster being that it avoids the page life cycle, however this slight performance improvement is probably not worth creating a handler for in my particular situation. The only thing that comes to mind now is (assuming using the same aspx page approach) whether there is any special consideration in a situation where the GridView is inside an UpdatePanel?

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C# - HttpListener Windows Service Vs HttpHandler .aspx Dilemma

Mar 31, 2011

In a Windows Service I implemented an HttpListener that will handle incoming HTTP Requests to a certain port, parse the query string, insert it in database and send a confirmation response. However, the clients said that they were a bit skeptical and asked if the same could have been done via a webpage. Like having an HTTPHandler listen to a certain port. Got me thinking. What would you do in my situation? Go with the HttpListener/Windows Service or HTTPHandler/.aspx?

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HttpHandlers / Modules :: .aspx Sessions Being Called In .ashx Handler?

Aug 20, 2010

I have an Handler.ashx file and on .aspx page load it calles the .ashx file for image reading. I am attempting to pass a session from the .aspx file to the .ashx file in order to make my query of grabing the image secure. The problem is that everytime I call a session: HttpContext.Current.Session["ID"], the value is returning null or errors saying the o so commong "Object reference not set to an instance of the object". I have tried a couple ways of grabing the session:

1.) context.Session["ID"]
2.) HttpContext.Session["ID"]
3.) HttpContext.Current.Cache["ID"]

none of them are giving me the ID session set in the .aspx page. should i be using Server.Transfer instead? is there a way to grab a session variable set in a .aspx page and called in a .ashx page?

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Httphandler Version Aspx Code Behind Writing Image File?

Mar 31, 2010

We have encountered this difference in file creation while using a HttpHandler Versus a Code Behind Aspx page. We are reading a saved jpg/png picture as byte array from a 'Image' field in sql server database and create a physical file in the server. Both the Aspx Page and Httphandler use the same code pasted below.

int docID = Convert.ToInt32(Request.QueryString["DocID"]);
var docRow = documentDB.GetDocument(docID);
// Retrieve the physical directory path for the Uploads subdirectory
string destDir = Server.MapPath("../../Uploads").ToString() + "\";
string strFileName = destDir + DateTime.Now.ToFileTime() + "_" + docRow.DocName.ToString();
FileStream fs = new FileStream(strFileName, FileMode.CreateNew, FileAccess.Write);
fs.Write(docRow.DocData, 0, docRow.DocData.Length);
// End

After the file is created, it is viewable as a jpg/png Image only in Aspx Code Behind. While in case of HttpHandler it is not a valid Image.

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Web Forms :: How To Write Aspx Page HTML From Aspx.cs Page On Page Load

Dec 1, 2010

i want to write aspx page html from aspx.cs page on page load..

i hav already used div.innerHtml...

i want to write below code in aspx page from aspx.cs page


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Web Forms :: How To Embed A Child Page (aspx) In A Master Page (aspx)

Apr 14, 2010

what i wanna do is:

there is an dropDownList in the master page with 4~5 items.

i've prepared 4~5 sub-page related to the above item. when the dropDownList.ItemChanged, the subpage content will show their own page.

use html iframe to include another aspx page.

in my cs code:


but when i change the item in the dropdownlist, the error pops up:


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Caching - Call A Page (ashx Handler) From A Different Page?

Jul 12, 2010

I have a admin page in asp.net that adds data to a database. This database is available as a JSON string to external websites, however, since it's a lot of data, the external websites cache this data locally.I want to be able to ping the external websites to let them know the data has changed so they can referesh their cache. I figure I can setup an ASHX handler that receives a parameter telling them what data has changed, so they can both delete that data and refresh it.The only part I'm not sure about is the best way to call this external page from my admin page. Do I just do a regular WebRequest and discard the result? or is there a simpler way to call a page from code when you don't need the response?

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C# - Accessing A Master Page From Httphandler?

Apr 9, 2010

I am developing a small application in asp.net (writing in c#). In my application I am using jquery to perform asynchronous call to the server. I have an http handler that listens in to the requests and does what it needs to do.

Problems start when in the handler I need to access information stored in the page , from where the asynchronous call started. When I try this:

Page page = HttpContext.Current.Handler as Page;

I don't get a page.

How else can I access the page itself?

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AJAX Controls, Adding Via .ashx Page?

May 5, 2010

Okay, this is a continuation of a previous question of mine, but it is distinct enough to be its own question. Based on user interaction, I'm calling a .ashx handler via a jquery ajax call, and that handler is building some html for me that includes some Telerik controls like a masked textbox (masked for a phone number like "(###) ###-####".

I got around all the hurdles of using Render() to get the html output of a server control even when it doesn't have a "Page" object or a ScriptHandler object.However, when I show the control to a user, I see the mask in the text of the textbox, but the mask doesn't "work" in the sense that when a user starts typing, it is as if the mask is really just text.

So, my question is, after putting the html code out for a masked textbox, how do I tell whatever javascript is supposed to mask the input to really start masking on that specific control?

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FullCalendar Events From ASHX Page Not Displaying?

Jun 7, 2010

I have been trying to add some events to the fullCalendar using a call to a ASHX page using the following code.

Page script:

<script type="text/javascript">
$(document).ready(function() {
header: {


The ASHX page gets called and returnd the following data:

[{id: 0,title:'test 1',start: '2010-06-07',allDay: false},{id: 2,title:'test 2',start: '2010-06-07',allDay: false}]

The call to the ASHX page does not display any results, but if I paste the values returned directly into the events it displays correctly. I am I have been trying to get this code to work for a day now and I can't see why the events are not getting set.

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Httphandler - Track # Of Page Viewed In A Session?

Nov 22, 2010

I am currently working on a project where I want to implement a bit of logic for each .aspx viewed.My idea was to use an httphandler that will target *.aspx, and in the handler, I would do my bit of logic, such as printing out: This is the xth page you have visited in this session.I am curious if there are any problems with my idea or is there a more proper solution I am not aware of.Though I have tried implementing my solution, I run into an infinite loop. After I complete my logic with the handler, I redirect to the same page, but that of course calls the same handler. Is there a way to bypass the handler on the redirect or a specific way to execute the same page without accessing the handler.

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Edit Ashx Page In Web Developer 2010 Express?

Mar 12, 2011

I created ashx page in VB and after I saved it I can not editi it anymore does anybody knows why his happens?

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Default Document And HttpHandler Serve A Specific Page?

Dec 28, 2010

I have IIS 7.5 with an ASP.NET application. The application must run with IIS Classic Mode.

I have one HttpHandler that serves all the Request:

<add verb="*" path="*.aspx" type=".....HandlerFactory..." />

The problem is that i can't establish a Default Document to an non phyisical file. I want that the Default Page be : Home.aspx (which is a non phyisical file).

So when I go: [URL] I get an error: HTTP Error 403.14 - Forbidden The Web server is configured to not list the contents of this directory.

I do not want to make a REDIRECT.

Is there any way to accomplish this without having to create a index.html to redirect to Home.aspx?

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Track Hits Using Google Analytics And .NET Web Handler (ASHX) Page?

Jul 15, 2010

We are using Google Analytics for our site, but since it uses client script in HTML output we are unable to track hits to any of our ASP.NET ASHX handler pages.

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Get Page.Theme From HttpHandler Page?

Jan 31, 2010

There is an HttpHandler that needs to access the theme name, so you can rebuild the image name depending on the theme name.ow can I access the Theme property

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How To Place An Aspx Page Inside Update Panel Of Another Aspx Page

Aug 23, 2010

is it possible to place an aspx page inside the update panel of another aspx page? if possible let me know the way to do that.

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Call Public Property Declared In A ASPX Page From A Different ASPX Page?

Jan 15, 2011

How can I call a public property declared on a ASPX page from a different ASPX Page? Is that possible? It is a website project. How can I get/call this property from a different aspx page? I have attempted this from the other page, but it is not recognizing the partial class: private Test_Default _test; It does not recognize the "Test_Default"



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Web Forms :: How To Pass The Value From .aspx Page To .aspx.cs

Oct 19, 2010

I have to pass the value [sysid] for getting the value from another table.

I coded asp:


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AJAX :: Open A New Aspx Page Inside Aspx Page?

Nov 30, 2010

How we can open a new aspx page in update panel embedded on current page. I want to open that page on some ajax event...

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Web Forms :: Accessing Master Page's Body Tag From Aspx Page That Is Not A Content Page

Jan 8, 2011

I am using Master page and Content page combination.But how can i access <body> tag and it's event (onload, onunload) of Master page in .aspx page that is not a content page.

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