AJAX :: Javascript Used In User Control Does Not Work In Update Panel?

Mar 23, 2010

i have a user control in which the cancel reset button clicks will call a javascript. this works fine when the user control is used normally...

if the usercontrol is put inside an update panel. the javascripts throw an error. "Object Excpected."

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AJAX :: User Control With JQuery Doesn't Work Inside Update Panel?

Sep 21, 2010

I created a .NET user control to work as a DropdownCheckbox and added Jquery to give the sliding and hide effects. The code is as below:


This control works fine in a normal page, but once I put it inside an update panel it doesn't work. Is there a work around or simply I can't use JQuery inside update panel?

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AJAX :: User Control+update Panel+javascript

Oct 7, 2010

Im having a aspx page which has 5 tabs inside a update panel..also I have a user control

Wen I click each tab im dynamically loading dat user control ...

The problem is im using javascript in dat user control..

the user control has a button which displays a panel containing three grid views n s activated by a java script as given below..

function Elig()
'<%=btnLegend.ClientID %>')).click(function(){
('<%=pBody.ClientID %>')).slideToggle('slow');

Wen i run the aspx page the first tab successfully loaded with dat user control n also the java script is working..wen I click the next tab user control is loading

But dat java script is not working..

i know the problem is after partial postback of update panel my js s not working..

i have tried registering like this..

scriptManager = Page.ClientScript;
if (!scriptManager.IsClientScriptBlockRegistered(this.GetType(),
StringBuilder scriptBlock =
"Elig", scriptBlock.ToString(),

still its not working..

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AJAX :: Update Panel & Update Progress In User Control / Multiple Instances On Same Page

Feb 16, 2010

I have a user control, that has an update panel and update progress control in it.

I use this user control in more than 1 location on the same page.... problem is, when ucA posts back, I see the update progress control for both ucA and ucB. I assume this is because it is a user control and the update panel and progress are named the same?

Either way - how do I make it so that the update progress only displays for the proper user control?

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AJAX :: Using A User Control's UpdatePanel.Update() From A Page-level Update Panel's Function Call?

Jul 14, 2010

I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.

Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.

<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>

This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.


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AJAX :: Export To Excel Button Does Not Work Inside Update Panel Control

Mar 15, 2013

i have gridview and export to excel button inside Update panel, the code i am using to export gridview data to excel is..

public void imgExcelExport_Click(object sender, ImageClickEventArgs e)
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Customers.xls"));
Response.ContentType = "application/ms-excel";


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AJAX :: How To Update Panel With User Control

Nov 5, 2010

I have 2 user controls. The first user control generates custom paging and assigns the output as a string literal. The second user control is a simple repeater which uses values from the paging control via a query string to decide which relevant chunk of data to retrn.

The custom paging control is embeded in the custom reapeater control. In my my page, I simply call the customer erpeater control and everything works treat.I now want to add update panels to this but I can't think where to start.

The paging control looka like this.


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AJAX :: User Control, Update Panel And Flicker?

Sep 26, 2010

I have block of code that consists of a textbox a button and a dropdown. The text entered in the text box filters the dropdownlist when the user clicks the button. The Ajax works great when it is in a simple page but if I put the same code in a User control I get flicker.

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AJAX :: Odd Behavior On Setting Focus In User Control With Update Panel?

Nov 9, 2010

I'm having a bit of an issue in my ASP.Net application moving focus from a textbox in one user control to a text box in the next user control on the page after postback. I've searched high and low over the last several days to find a solution but, for whatever reason, have been unable to do so.

I have a page that has user controls loaded dynamically to allow a user to enter data.The number and type of user controls loaded to the page is determined at run time based on a database query.It is possible than many controls of the same type can be loaded. Each user control has its own update panel. Within the update panel of each control is a regular asp panel. Inside of the regular panel there are at least 2 server controls (any other controls that may exist in the user control are not affected by this issue) - a text box and a button.The defaultbutton property of the regular panel is set to the ID of the button within the user control. The desired behavior is to allow the user to enter data into the textbox on one user control hit enter to save the data on that user control the application will set focus to the textbox of the next user control on the page after the data from the "current" user control has been saved. Other considerations;

The application uses master pages. We make extensive use of ajax and the ajaxtoolkit in the application. I am using Visual Studio 2010 and .Net 4 The issue - when first entering the page, one can enter data into the first textbox and press the enter key. Data from "current" user control is correctly saved and focus is correctly moved to the next user control on the page.

Data can be entered into the textbox of "new" user control and when the enter key is pressed, the data is correctly save. The focus appears to move correctly to the next user control on the page.Data cannot be entered into the textbox of the control. Pressing the enter key will not save the data (because none was entered) but the focus will move to the textbox of the next user control on the page.

Data can be entered into the textbox of the user control. When the enter key is pressed, the data is correctly saved and the focus appears to move correctly to the textbox of the next control on the pageBasically, steps 3 and 4 are repeated until the end of the user controls on the page, alternating between being able to enter data and not. Other items of note When one is able to enter data into the textbox of a user control, one can correctly tab through the textboxes of each user control until the end of the page When one is not able to enter data into the textbox of a user control, pressing the tab key will take the focus to the address bar of the browser.

I created a much simplified example of the scenario described above and was able to consistently reproduce the "bad" focus behavior. All of the ajax toolkit controls and code where stripped out of the sample to rule the toolkit out as a cause. The behavior still occurs without the toolkit.

I am including the code for default.aspx and WebUserControl1.ascx.





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AJAX :: Hosting Windows User Control In A Webpage Inside An Update Panel

Jun 8, 2010

I am hosting a Windows User Control in my web page using <object> tag. Everything works fine when the control is outside the updatepanel and is independent of other web controls but when I move the control inside the update panel, it doen't load the user control properly.

<object id="myBrowser" classid="http:MyBrowser.dll#MyBrowser.UserControl1" height="20" width="400" VIEWASTEXT></object>

why it doesn't render the control properly and what can I do to fix it?

I tried moving the user control outside the update panel but since this user control is shown/hidden dynamically and is rendered based on other web controls which are inside an Update Panel, the user control is not shown at all.

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AJAX :: Determine If User Control Is Contained By The Update Panel That Triggered Async Postback?

Sep 16, 2010

Does anyone know a simple way to determine if a user control is contained in an update panel that was triggered for async postback?

At the moment, the only pseudo logic for this I can think of is?

'Loop through the update panel controls on the page and find the one that is involved in the postback (isInPartialRendering)

'Try to find the user control as a child of the update panel

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AJAX :: Calling Server Side Events For A User Control Loaded In Update Panel - Refresh Page

May 23, 2010

I need to update datalist in image gallery when fileupload has been completed.

<div style="display: block;">
<div style="padding-left: 15px; padding-right: 15px;">
<uc1:ctrlFileUpload ID="ctrlFileUpload1" runat="server" />
<uc2:ctrlImageGallery ID="ctrlImageGallery1" runat="server" />

In the Control File Upload I need to fire the the other ctrl to refresh the page.

<asp:UpdatePanel ID="UpdatePanelUploadArea" runat="server" UpdateMode="Conditional">
<asp:FileUpload ID="FileUpload1" runat="server" />
<br />
<asp:Button ID="UploadButton" runat="server" Text="Upload Now" OnClick="UploadButton_Click" />
<asp:Label ID="lblResult" runat="server" ForeColor="#0066FF"></asp:Label>
<br />
<asp:PostBackTrigger ControlID="UploadButton" />

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AJAX :: Can't Get Update Panel To Work

Jan 9, 2011

I am building a simple Ajax control sample off one of the tutorials provided. Here's code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]">
<head runat="server">
<title>Untitled Page</title>
<form id="form1" runat="server">
<asp:ScriptManager ID="asm" runat="server" />
<div atomicselection="False">
Departure date: <asp:TextBox ID="tbDeparture" runat="server" />
Return date: <asp:TextBox ID="tbReturn" runat="server" />
<asp:Panel ID="pnlCalendar" runat="server">
<asp:UpdatePanel ID="up1" runat="server">
<asp:Calendar ID="c1" runat="server" />
<asp:AsyncPostBackTrigger ControlID="tbDeparture" EventName="Load" />
<asp:AsyncPostBackTrigger ControlID="tbReturn" EventName="Load" />
<asp:PopupControlExtender ID="pce1" runat="server"
TargetControlID="tbDeparture" PopupControlID="pnlCalendar" Position="Bottom" />
<asp:PopupControlExtender ID="pce2" runat="server"
TargetControlID="tbReturn" PopupControlID="pnlCalendar" Position="Bottom" />

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AJAX :: Update Panel Wont Work Right?

May 26, 2010

I don't understand why this update panel doesn't work right. It doesn't do a partial update. Enable partial page rendering is set to true but clicking the button causes a full page post back. The text of the label changes with the full post back. So, the event is firing and being handled but not with a partial post back. This is with in a content page with in a Master Page. Does anyone see what I've done wrong?


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AJAX :: Update The Chart Using An Update Panel And Timer In Javascript

May 17, 2010

i am attempting to use javascript to update the chart, because how i have setup now causes the chart to just disappear. Here is the code i have now: I am calling the chart to page using: on default.aspx


Code on the dataURL_Infrasturcture_Capacity.aspx page:


PROBLEM: So how would i update this using an update panel and timer. Currently when i do it the chart just disappears on update. I believethis is due to the fact that i am calling a dataURL. How would i get this to work javascript?

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AJAX :: Update Panel Running JavaScript Fails On Update?

Aug 6, 2010

I have the following function that is trigered from an asp dropdownlist when an item is selected.


The script sets a url depending on the selection from the dropdownlist.

It all works ok, but then the update panel updates and the javascript photogallary breaks.

How do I prevent this from happening.

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AJAX :: Update Panel Refresh Not Work When Using Combo

Jul 29, 2010

if i use a combo box inside an update panel, the updatepanel's partial postback will not work. instead in a postback the page refreshes whole.

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Fileupload Control Does Not Work Under Update Panel Unless Use Postback Triggers

Apr 29, 2010

I am using .net 3.5 framework. I have a Tabcontainer inside that I have place asp.net fileupload control which is inside update panel. It's been known fact that fileupload control does not work under update panel unless we use Postback Triggers.



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AJAX :: Fire JavaScript After Update Panel Update?

Mar 2, 2011

i have update panel which has button inside

so when i click button, the update panel refreshed auto.

the problem is i want to fire java script when i press the button


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C# - How To Update The Content Of A User Control If Is Outside The Update Panel

Feb 7, 2011

I have a user control which is inside a update panel.This user control has a event like


Inside this i am checking a checkbox which is outside the update panel.

But it is not checking the checkbox ?

In firebug i found that the html for that checkbox is not rendered.

What is the way to do that?

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Why Doesn't HTML Input Of Type File Work With Ajax Update Panel

Apr 29, 2010

I have a input of type file and when i try to do a Request.files when the input is wrapped in an update panel...it always returns an empty httpfilecollection. Why???

This is the codebehind: (At HttpContext.Current.Request.Files...its always 0 for the count.)


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AJAX :: AsyncFileUpload Javascript Doesn't Work Within Visible / Invisible Panel

Aug 18, 2010

I have an asyncfileupload control within a panel control. The panel is initially set to visible=false on page load. After a user clicks a button to display the panel contents however, I set the panel to visible and the user can then use the asyncfileupload. The problem however, is it seems much of the javascript associated with the asyncfileupload, does not function properly when the panel containing the upload control is set from invisible to visible. If I set my panel's "visible" property to "true" initially, then it works fine. My javascript error message is as follows:

"Form contains a file input, but is missing method=POST and enctype=multipart/form-data on the form. The file will not be sent."

Basically within my asyncfileupload control, I have the following line:


In this scenario, my "args" variable is always null (when I set my pane's "visible" property to "true" on page load, the args variable DOES contain data. Any idea why switching a panel from visible=false to visible=true, would cause an error like this?

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AJAX :: JavaScript Is Not Working In Update Panel?

May 28, 2010

I have one asp.net content page and calling .js file in that content page <asp:ImageButton> onclient click event. but it is not all calling .js file

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AJAX :: Javascript Lost In Update Panel?

Sep 24, 2010

i am using an update panel inside this i am using a jquery image upload which works fine outside an update panel, but when inside i think the javascript is not instalising. i have tried using RegisterClientScriptBlock without success.

the javascript is belo, because its a document.ready how can i make sure this is not lost in a update panel?

$(document).ready(function() {
/* example 1 */
var button = $('#button1'), interval;
new AjaxUpload(button, {


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AJAX :: Refreshing Update Panel Through Javascript Postback?

Mar 17, 2010

In one of my webpage, I have a parent window where i have a datalist with 10 rows of images. when i click any image a pop up window(child window) opens.

The child window has a form to be filled by user. Once user fills this form, he will press the save button. Once the save button is clicked, the child window should be closed and the datalist(in the update panel) in the parent window should be refreshed.

This is how I am trying to achieve this. On click of the save button a javascript function is being called of the parent window like this: window.opener.refreshDataList();

in the refreshDataList() function I have written the following code:

__doPostBack('ctl00_ContentPlaceHolder1_UpdatePanel1', '');

This works like a charm in Internet Explorer. However in Mozilla and Chrome it doesnt work. While testing this I added an alert statement ind the refreshDataList() function like this..

__doPostBack('ctl00_ContentPlaceHolder1_UpdatePanel1', '');

Once I added the alert statement, It started working in both mozilla and chrome.

So I realize that It could be an issue related to focus. I have done window.focus()

but still its not recieving any focus and not working in Mozilla and Chrome.

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