AJAX :: UpdatePanel When Using Response.Redirect And .NET 4?
Jul 29, 2010
I have just upgraded my web application from 3.5 to 4. There is one issue that I am now having that is easy to reproduce. I am hoping you can help me determine the best way to overcome this issue.I use Ajax and the AjaxControlToolKit. If you create a new aspx page and add an UpdatePanel and then add a button on the UpdatePanel. Then for button_click have it do Response.Redirect("SomeOtherPage.aspx") and it will give you a 404 error.Sample:
I'm using ASP.Net 2008 and C# and Ajax. I have wired up my ajax updatepanel to update the buttons within them in the gridview control's RowCommand event. However, at the end of this event, I call the Response.Redirect(commandArgs[2]); to open either Word or Adobe docs that user selected. And this line of code stops my Ajax updatepnael to update my 2 buttons' enabled properties. I thought maybe there is another way to open docs that won't interfer with my Ajax updatepanel and what will that be?
I am using the AjaxControlToolkit 3.0.30930 (the most recent). I have a very simple page with an UpdatePanel. A button on the UpdatePanel invokes Response.Redirect and passes the URL of a Click Once application on the same server. This works well if I run the website on my local system (Windows 7, IIS 7.5).
If I run the website on a remote system (Windows Server 2008, IIS 7.5, same settings) the redirect simply does not work when invoking the page from remote (using the IP address). Instead a postback is executed. Even if I use the IP address of the webserver to invoke the website locally on the webserver, the redirect does not work. Using http://localhost on the webserver the redirect works well.
I tried another test page with no UpdatePanel: The redirect works well in all scenarios.
I tried out to invoke the ClickOnce application using a link instead of Response.Redirect: The redirect works well in all scenarios, even with an UpdatePanel.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestWithUpdatePanel.aspx.cs" Inherits="TestWithUpdatePanel" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[Code]....
Even if setting EnablePartialRendering to false, the redirect works. This is a big clue, that the UpdatePanel causes the problem.
I want to bring up an Alert messagebox if a user does not fill in a field on my webform before clicking a submit button on the form. I also want to use an UpdatePanel because it makes it a smoother user experience. But I am experiencing a conflict with
response.write("<script>alert('fill in Comment before submitting');</script>");
and the UpdatePanel. If I remove the Updatepanel then I can use my Alert message above but it loses the page temporarily until the user clicks "OK" on the messagebox. My alternative - using the UpdatePanel - was to add a label to the webform where if a user does not fill in the requested info - a label would display text giving the same message - very smoothly with the UpdatePanel. But the label is not modal like the Alert message.
Is there a way I can use response.write in conjunction with an UpdatePanel? The webform is fairly basic. It has a couple of asp.net textboxes and labels and an asp.net button control. I guess I could use a "required" label, but I like the modal property of the Alert message better.
In Firefox (3.5 or 3.0), AJAX toolkit modal popups move just before a redirect.It's as if the positioning css is ignored. The rest of the css appears to be honoured i.e. the popup appearance doesn't change but it jumps to the top left-hand corner.
The test code below reproduces the issue. It only happens in Firefox. I am going to try to work around it by implementing client-side-popup-hiding measures but I would still like to know why it is happening.
I used a modelPopupExtender to make a screen freeze. after the saving i do an response.redirect to the same page but when i do that i could see the panel saving again before reload.
here is the code
[Code]....
on Code Behind when finished button clicked i do show the next view from the multiview as well as the New button. inside the finished button click event i do mpeScreenFreez.Hide(); to hide the popupExtender. When i response.redirect i could see the panFreeze panel poping up just before relaod.
I have populated my data using DataRepeater Control and i have a Delete button on that so each and every row has a delete button which allows user to delete a single entry from DB. I have put this control inside UpdatePanel so i can avoid full page postback.
When i delete the row from the database and try to show a alert message using Repsonse.Write it throws me the below error message
Error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near 'itle||Untitled Page|<script language='ja'. Source File: [URL]
But, If i remove my update panel its coming up well, is there any solution so i can show alert box after a row been deleted ?
Observing this strange behaviour in Firefox when a history point is added using ScriptManager. Firefox retains the history point in a URL even if Redirect the browser to a new URL.teps to recreate:1. Save the code below as an aspx page in a website and browse to it.2. Click on the "AddHistoryPoint" button. It just adds a history point to the browser URL. (#&&key1=value1 gets added to URL)3. Now click on "Redirect to Google" button. The browser redirects to [URL]) is retained in the URL bar.This happens only in FF (checked in v3.5 and v3.6) browser. This odd behaviour in FF causes lot ot trouble when redirecting to other pages in the same site that change their state based on the state info present in URL.
I have a normal Wizard WebControl. On the first page of the Wizard, in the StartNavigationTemplate, I've added a button. When clicked, the button will generate a PDF (using iTextSharp) and post it back through Response.OutputStream. All this works just fine.
Now I want to wrap my Wizard in an AJAX UpdatePanel, to make it switch through the steps smoothly. However, this means that the Response from my PDF button is intercepted and does not do a post back. My solution to this was to add a PostBackTrigger for the PDF button, but since the button is in a template I ended up adding it dynamically. Here is how my final code looks like:
[Code]....
[Code]....
- if I load the page and the first thing I do is to click on the PDF button, then the PDF file is returned as a normal post back
- if I load the page, navigate to step 2, return to step 1 and then click on the PDF file, then the Response is intercepted by the UpdatePanel and not displayed.
I am using UpdatePanel and UpdateProgress on my webform. On my page_Load, I am checking some of the session variable if thats null then I have to redirect to my other page. Now, as I have updatePanel, we cannot use Response.Redirect so I have this code to redirect to my other page after checking that session variable.
[Code]....
But the problem is that my page continues execution after this line. I want to immediate transfer my page to this other page just like Response.Redirect but it keeps executing and redirects at last. If it comes to this line of code, I immediately want to redirect to my other page.
I want to redirect to "~/City/Göteborg", but if I just write Response.Redirect("~/City/Göteborg"); I will end up with an ugly URL in the address-bar like this: http://www.mysite.com/City/G%c3%b6teborg..
So my question is how to redirect to obtain a clean url like http://www.mysite.com/City/Göteborg?
if ((Request.QueryString["UbytovaniePrispevokID"].ToString()) == "")[code]......
What i want to do is.. I have one main page with new posts Each subject of the new post is the link to Another page where is Specific post and coments and user can leave a coment.
What I want is when the Request.QueryString["UbytovaniePrispevokID"].ToString()) == "" or null I want to redirect to error page ...
Is it necessary to call Response.End() after Response.Redirect(url) Update for all the answers. Because some answers say that it's necessary and others say no, I have searched more and have found in msdn under remarks the following: Redirect calls End which raises a ThreadAbortException exception upon completion.
I am working on a website that I inherited (ASP.NET and C#), and I noticed that in almost EVERY method in the code behind of the project pages (except some helper methods), the original author uses Response.Redirect() to redirect to a page (typically home.aspx, but not always).
What is the purpose of doing this? It seems unneeded to me - at least it doesn't appear to change anything the website is doing if I keep it in or remove it.
I have a flash image slider with a button below each image. When i press that button, the user is redirected to a new page where i add that image product to my cart. The problem is that after doing the adding, i want to redirect the user back to the initial page.
note that in Firefox is working fine but in IE or Chrome it is DOWNLOADING the swf...If i comment Response.Redict(...) the user remains on this page so the click button is working well, only the redirect seems to be the problem.
Edit: The problem seems to be that Request.UrlReferrer keeps as link not the initial page containing the swf but the swf itself.
So, instead of doing redirect to:[URL] if does redirect to the swf contained on the Index.aspx page[URL]
Solved: with a session variable where i keep the initial page's url
I recently upgraded a web app to ASP.NET 4.0 , but I have to downgrade it back to 2.0, because the Response.Redirect from another web app, which is in ASP.NET 2.0, did not work.