AJAX :: UpdatePanel Versus Wizard WebControl / Page.Response
Mar 30, 2010
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.
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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:
<body>
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Feb 11, 2010
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.
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Aug 20, 2010
Response.Redirect is not working with UpdatePanel
after migrating a web site to ASP.NET version 4.
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Feb 23, 2010
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 ?
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Mar 11, 2010
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?
[Code]....
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Mar 24, 2010
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.
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Mar 11, 2010
I am currently using a asp.net 2.0 with visual studio 2005.
I am trying to build a web application using ajax.
but when I drag the ajax updatepanel on asp.net page it is not resizable,so how should i put other controls on it?
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Apr 8, 2010
This script and code in formview successfully redirects a user to the photoupsinlge page when the uers enters there data.
[code]....
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Jul 14, 2010
I am trying to use wizard in an update panel but the wizard is disappearing when I click for the next or prev step button. I only want to close wizard , when I click the finish button. How can I do this ?
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Oct 19, 2010
My Job wants me to create a popup with an updatepanel inside of it. The updatepanel would have a wizard control that would take you through some steps. Would it be better to use and Iframe to simulate an updatepanel between steps or just use an updatepanel?
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Mar 1, 2010
would love to popup a created ascx control.in my aspx page i have a button like button1modalpopupextender targetcontrolid is button1 and popupcontrolid is the one of the ascx control.everything works. have MANY buttons (more than 2) inside the ascx control.depending on WHICH button i push INSIDE the ascx control, the controls returns me back a valuebut the server side event for button1 is no more fired after extending with modalpopupextenderso what i need is to specify the modalpopupextender a method to call after ANY button inside the ascx control has been pressed.i did not find a solution until know.it WOULD HELP ME if, i click my button1, the modal popup displays, i can click inside there, and after i click inside the modal popup, the event for button1 server side would be raised, but this does not.i tried event for modalpopup unload but it crashes my webserver.so why this all? i created a ascx which will be dynamically filled with buttons and text depending on what i need.
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Mar 5, 2011
I have master page
MyMasterPage.aspx and content page MyDefault.aspx.
MyMasterPage.aspx has one input button [value="Menu-1"]. When user click the button, the button will pass value "Menu-1" into
TextBox1Default1 at content page MyDefault.aspx, and then refresh
UpdatePanelDefault1 at content page MyDefault.aspx asynchronously.
My problem is the post back is full post back when refreshing UpdatePanelDefault1. I would like asynchronously post back during refreshing UpdatePanelDefault1. copy the full code MyMasterPage.aspx and MyDefault.aspx below, and then paste / overwrite it into your blank aspx page for testing. I am using VS 2008
Below is full code MyMasterPage.aspx.[Code]....
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Aug 17, 2010
I'm using one Sublayout (Sitecore) and have a placeHolder that currently holds 2 webcontrols. I want to access the Label from one Webcontrol to the other Webcontrol.Do i have to find the Label recursively or can i just access the Label on another way? I tried different methods like:
this.Page.Findcontrol
this.Parent.Findcontrol
Label lblSearchTerm = (Label)this.Parent.FindControl("lblSearchTerm");
Label lblResults = (Label)this.Parent.FindControl("lblResults");
any result as being Label lblSearchTerm = null.
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Mar 29, 2010
I have an updatepanel on my master page that just updates the database every 30 seconds, what is happening is that everytime it is fired, it will refresh everything on the page_load of the content page that are not under ispostback = false. to disable such a thing just for this specific updatepanel?
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Aug 20, 2010
Iam using masterpage concept and iam using ajax updatepanel in master page , i want o use trigger in child page. to partial postback of dropdownlist.
my questions is how to use trigger and updatepanel in child page called frmcustomer.aspxand my master page name is master.asxpx
below is my child page
<%@ Page Language="C#" AutoEventWireup="true" MasterPageFile ="~/Test.master" CodeFile="frmMscustomer.aspx.cs" Inherits="frmMscustomer" %>
[code]....
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Dec 20, 2010
I am trying to change an attribute on a textbox when a DDL value has changed. here is the code. <asp:DropDownList ID="DropDownList2" runat="server"
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Aug 24, 2010
iam using master page and i am using update panel in content pages (child pages)
my questions is that can use updatepanel in every child page or master page only.
i have senario , in a page i have file upload concept ,updatepanel is not support that fileupload.
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Sep 16, 2010
What is the difference between; Deploying an application Releasing an application Implementing an application
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Feb 26, 2010
I've built a class that derives from System.Web.UI.WebControl. It basically renders pagination links (same as what you see on top of GridView when enabled) for use above a repeater.I'm creating some anchor tags explicitly inside my nav control obviously, but they don't perform ajax postbacks. My understanding is that ajax requires POSTS to work right? Well, these would be GETs
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Mar 5, 2010
I've the following html
[Code]....
and my server code is:
[Code]....
the sever code is executing correctly but the page's html is not updating.
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Mar 1, 2011
I have an asp UpdatePanel, an asp panel, an asp timer, and an asp label on my web page, as you know the whole idea of updatepanel is trying to implementing partial page rendering mechanisem, however, it is not the case in my scenario, here is the code:
[Code]....
and on the pageload event, i assign:
[Code]....
strangely, the labl1 does update the time without causing the whole page post back, but the panel does cause the whole page refreshed, and the asp panel contains asp buttons and those buttons are generated dynamically by code behand c# file, am i missing sth here or the nature of asp:panel will cause the whole page post back?
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Mar 24, 2010
I am using ASP.NET, in VB
My problem: I have a submit button in my page. The pressed, it reveals a hidden div with updated info and places the page at the right level with an anchor. The div contains a gridview with pages. When I change pages, because of the anchor, I am brought back to the top of the page (if I was at page.aspx#middle, it sends me to a.aspx#). No matter what I do, I can't manage to tell the pages to only update the updatepanel, it always changes the link. I do not have this issue if I don't have a hash, it simply remains at the same place.
What I am trying to do: either not go to the top of the page, or even better, go to the middle of the page, to my #middle tag.
What I have tried: MaintainScrollPositionOnPostback (I need to be able to set my position, so it doesn't work), ClientScript.RegisterStartupScript(Me.GetType(), "BookMarkScript", Script.ToString(), True) (it never worked, never set my page), putting a window.location.hash after my __doPostBack (because it updates my page twice for an unknown reason), ASyncPostBackTriggers (seems to entirely ignore my updatePanel when I am using hashes, even if it works without them).
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Apr 23, 2010
1- I am using updatepanel and somethings work asynchronously and others do not which are in the same page.
But could it be that using the "same" trigger for two different update panels causes the first one to be asynchronously and the second one not?
2- In php u have something called $_POST['variablename'] which u get from a previous page. Is there anything similair in ASP.NET?
My point is that I have a dropdownlist and I want in the next page to launch a message depending on what the user chooses in the dropdownlist.
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Apr 14, 2010
It keeps on refreshing the page I'm using framework 4 (VS 2010 RC1Release).
This code was working in framework 3.5
all the pages in framework 4 that i've been using updatepanel it keeps on refreshing the page.
But works fine in framework 3.5 (VS 2008).
<form runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" OnLoad="upCountDown_OnLoad" >
[Code]....
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