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UpdatePanel

UpdatePanel

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by Michael Gledhill
Replacing slow Page_Load functions with UpdatePanels and asynchronous data loading
by ASP.NET Community
jQuery helps a lot in order to bind events to the control across the browser. But when using the Asp.Net Ajax UpdatePanel, there are some issues
by Declan Bright
A technique which ensures that an ASP.NET GridView displays nicely on small screen devices.
by ASP.NET Community
ConceptWith the rise of ASP.NET 2.0 AJAX Extensions 1.0, developers were fascinated by the great AJAX Server controls, but they missed that some of

Latest Articles

by Michael Gledhill
Replacing slow Page_Load functions with UpdatePanels and asynchronous data loading
by Declan Bright
A technique which ensures that an ASP.NET GridView displays nicely on small screen devices.
by ASP.NET Community
jQuery helps a lot in order to bind events to the control across the browser. But when using the Asp.Net Ajax UpdatePanel, there are some issues
by ASP.NET Community
ConceptWith the rise of ASP.NET 2.0 AJAX Extensions 1.0, developers were fascinated by the great AJAX Server controls, but they missed that some of

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UpdatePanel 

18 Feb 2022 by Member 15540510
Hi, I added some JS files to the project like this : and use updatepanel in ASP C# after click any asp button (after postback) js files are not loaded. please write an example for load multi js files after...
1 Jul 2021 by Member 14810636
I have a page with 10 gridviews on it. Each one has a modal popup extender which is used to enter information which is saved in a sql table for the gridview which should refresh asynchronously without a postback. I have ready many articles on...
9 Nov 2020 by Member 14987943
Give id and write runat server to your table inside update panel
9 Nov 2020 by PeejayAdams
I haven't touched ASP in a long time and I'm starting to remember why!I have an update panel that contains a repeater, the repeater items contain a button and I want that button as an asynchronous post-back trigger for the update panel.The update panel looks like this:
17 Aug 2020 by Member 14916780
TextBoxes are populated little bit differently in updatepanels. Then they will not update current value unless you focus on the textbox and empty it first. Strange, but it works like that. This is C# First set focus and Empty ...
17 Aug 2020 by Eddi Rae
I have searched and tried all of the examples that I could find for getting my program to update a textbox which is inside an UpdatePanel. I cannot get this to work. What I have tried: Here is my code
4 Aug 2020 by Member 14886708
Hello Developers, I've One GridView and In side that Two LinkButton and One Label With One DropDownList and I'm using UpdatePanel and Triggers to restrict Page Load (Refresh Page) on Button Click as you can See Code Belove So my problem is...
4 Aug 2020 by F-ES Sitecore
Only items inside an update panel will change so you'll need to put your label in an existing one or put it in a new one such that it is also updated.
17 Apr 2020 by Member 13779417
When I click the image button 'imgPaymentMethod' I require the code to change the ImageUrl of the Image Button. However, nothing happens when clicked.
11 Jul 2019 by Maciej Los
Sounds like you want to run process in the background... Take a look here: How to run Background Tasks in ASP.NET - Scott Hanselman[^] Background tasks with hosted services in ASP.NET Core | Microsoft Docs[^]
15 Aug 2018 by R. Ganesh Kumar IT
Hi,Javascript is not working after postback from update panel.Kindly help me to resolve this issue.
6 Apr 2018 by User 4180254
Placeholder control is used as a container where you can add control programmatically as per your need. You should have update panel control containing placeholder if you planning to include any other control/data here dynamically which probably avoiding full page refresh. If you do not want...
6 Apr 2018 by Member 8583441
I am having Updatepanel inside a placeholder in c# asp.net web application. What I have tried: I don't know which is better way. Can anyone tell me the exact one
19 Jul 2017 by Sheila Pontes
Hi, How you didn't post the code and i could not create the error. I will write all the elements necessary for you create a master page. Your master page 1 - Scriptmanager component is obrigatory. 2 - Updatepanel...
19 Jul 2017 by sam_matte
I created a masterpage named "site1" and inserted an updatepanel with a textbox and calendar. when I compile it, it gives error: The type name 'site1' does not exist in the type 'System.Web.UI.UpdatePanel' this is the following error: Line 179: } Line 180: Line 181: ...
30 Jun 2017 by LuciusAvette
Hello everyone. My current delete code used to work in a Gridview table but no longer, after I stuffed it into an UpdatePanel. Basically, users will select one or multiple rows with a checkbox and then the selected rows will be deleted upon clicking a button. This is my aspx code; ...
30 Jun 2017 by LuciusAvette
Fixed. Seems like my code behind for "DeleteRecord" just dislikes "TemplateField" and prefers "BoundField".
1 Jun 2017 by iiiii
hello friends, I used ajax toolkit 3.5 for calendar extender and i placed restrictions for a specific period on the calendar. I put this restriction on master page as a different period is selected by different login user. So according to login user period is restricted in whole application. ...
28 Apr 2017 by Samira Radwan
managed to do it by adding Javascript:void OR adding href="#!" But i...
28 Apr 2017 by Samira Radwan
I have an anchor tag inside listview that expands/hides a row inside the listview both are inside an updatePanel. the anchor tage javascript code is the following:
26 Apr 2017 by santosh_131
put the list view in a div with some id(divLstView1) function setScrollValue(divlistViewid) { var divObj=$("[id$=_" + divlistViewid + "]")[0]; var objX = $get(''); var objY = $get('
18 Apr 2017 by JaiminiThakkar
I have a page with a set of search criteria along with the search button in one div. My other div contains gridview as a result of search button in the previous div. I am using Update panel and update progress controls of Ajax. As of now, when I hit search the entire page is disable with...
30 Mar 2017 by xpertzgurtej
i have multiple updatepanels on page. Out of them there is a fileupdate control in a specific panel. To upload document i have to register the submit button using ScriptManager.GetCurrent(this.Page).RegisterPostBackControl(btnDocument). But on clicking this button it is refreshing all...
30 Mar 2017 by Karthik_Mahalingam
Set the UpdateMode as Conditional for all the UpdatePanelsUpdateMode="Conditional" and update/refresh the particular UpdatePanel by calling Update methodupdatepanelName.Update();refer this What is the main purpose of UpdateMode in UpdatePanel ? | The ASP.NET Forums[^]
6 Mar 2017 by Graeme_Grant
When working on your aspx page, click on the control and look at the Properties tab. These types of answers are always there.The following will show you how to make the LinkButton work as desired:
6 Mar 2017 by Member 11886379
In my webapplication page ,top of the page contain seven linkbutton .So i am adding asp.net update panel .After including that the linkbutton events are not worked.Without using the update panel it work well. How can I solve the problem? Here is my code:What I have tried:
2 Feb 2017 by A.R Farooqui
Related with ASP.Net Web form.I have a text box and i am performing some task on text change event.The problem here is that when text change event occur Ajax Modal Popup showing automatically. Note : Page contains an update panel.What I have tried:I tried much but unable to...
26 Jan 2017 by 204.sharma
Hi, My problem is, I have a link button(lnk_logout) on master page.In content page i have another link button (LinkButton1) in gridview template field. Now I want to open a new window on linkbutton1 click. I am using Javascript and its working fine. But after that when i click on...
26 Jan 2017 by Saineshwar Bageri
Try Comment Updatepanel and check if it shows error clearly , and also have look in browser console for scripts errors.
3 Jan 2017 by Member 11946604
Try thissmartNavigation="true" MaintainScrollPositionOnPostback="true"
2 Nov 2016 by Chriz12
Hello,I have a nested gridview on a popup panel. This is the code of the panel:
23 Oct 2016 by Brijesh Sonagara
on the button named "cmdSubmitCommentInRestReply" click of it, i want to change the data of child repeater of "rptRestaurantReviewReply",but it got affected after another postback.thanks in advance, and sorry if it seems you messy code.What I have tried:
12 Oct 2016 by Mcbaloo
i have an update panel with a gridview. The gridview consists of a button column. I want everytime this button is clicked, the update panel should be refreshed. From what i have been able to achieve, the buttton works fine but i would only be able to see the effect when i refreshed the whole...
12 Oct 2016 by manu_dhobale
Please referAssign PostBack Trigger (Full PostBack) for LinkButton inside GridView within AJAX UpdatePanel in ASP.Net[^]
11 Oct 2016 by Mcbaloo
Just trying to blend things a bit. I have a button outside an update panel which controls an update panel very well. I also want another button to also update this same update panel which the click event is triggered. Anyway to achieve this?What I have tried:i have been able to make...
11 Oct 2016 by Suvendu Shekhar Giri
How about - Please let me know if your requirement is different than this.Thanks :)
26 Jul 2016 by Samira Radwan
Hi everyone,in an .aspx page I have multiple update panels in each there's whether dropdownlist or a repeater.Of course once there's an updatepanel a problem with browser back button.I managed to re-set all the (cascading) dropdownlists when click back button, but binding the repeater with...
14 Jul 2016 by syedkhaleel
Hi Folks,I have a Gridview which i placed inside an update panel.And i have a column with text box inside Gridview, Which should allow only numeric values. Without update panel validation working fine.After adding update panel validation msg shows and goes off..Note that Once i come...
21 May 2016 by yourdad308
I placed a Loginstatus control on masterpage and using Add Extender, added ModalPopupExtender. Placed a Login control inside this ModalPopup. Turned this Login control to template. The login control is working if correct ID/Pass is given. But the literal control that is supposed to show...
22 Apr 2016 by Member 12403164
Here is my code:   ...
17 Feb 2016 by an0ther1
You can do a partial page postback or you can use Javascript to post data to the server behind the scene.Refer MSDN for information on using AJAX and UpdatePanelsPartial-Page Rendering Overview[^]To use Javascript you would need a Javascript timer - refer W3 Schools for Javascript timer...
17 Feb 2016 by Member 12334444
I'm writing my first web application using C# ASP.NET. I have a socket client running in the CodeBehind that connects to an application running a socket server. I have controls in the ASP page that I want to update whenever the server notifies me of a state change. So for instance, if I have a...
16 Feb 2016 by Michael Gledhill
Replacing slow Page_Load functions with UpdatePanels and asynchronous data loading
8 Feb 2016 by kranthi1988
Hi John,Thanks for that...now i've called the jqgrid loading function in .aspx file. it's working.
6 Feb 2016 by kranthi1988
Hi,I'm using Ajax tabcontainer with Jqgrid..Net 4.0 VS 2010Ajax Toolkit for Framework 4.0I've totally 5 tabs (have placed JQgrid in Tab4 and Tab5) and successfully created the functionality to navigate with in tabs help of UPdatePanel.Here the problem is, when i'm...
26 Dec 2015 by Member 10406706
I want to apply Ajax on multiple update Panels in Asp.Net. I have one textbox with required field validator. i want to redirect from update button to next page when i press update button it shows required field validator error.in update button property i already set the postbackurl property...
25 Sep 2015 by Member 11594902
angular translate not working with updatepanel aspx.net ...
6 Aug 2015 by RVPathi
I am trying to fetch records from my SQL DB and writing them to a text file when user clicks on the button. what I want is, no. of records is to be shown to the user during the process. like if there are 10000 records (say), so when user clicks on button, there should be a progress showing "No....
3 Aug 2015 by YassineYousfi
You probably need to provide full sources so we can debug it for u.and i've posted your question here:How to Show/Hide Loading Image after Export to Excel without using Update Panel[^]hope that helps. :)
31 Jul 2015 by snamyna
I have googled around for half day searching for the answer but no success. Im trying my luck here.My aspx does not have update panel.I succeed to show progress bar after user click Export to Excel but it never hides back after Respond.End. Is there any method to solve the...
26 Jul 2015 by F-ES Sitecore
Use pageload rather than (document).ready to attach your eventshttp://forums.asp.net/t/1982846.aspx?How+to+run+javascript+after+updatepanel+execution+completed[^]
26 Jul 2015 by Member 9454291
In my website i have used flexislider. Same page i have also used a Update Panel containing Repeater Control to display product.within Repeater control I have taken linkbutton to submit data to database. But when click submit button then Slider does not work but first time is no problem.So...
17 Jul 2015 by Troy Bryant
Hi -I have an update panel on my page just to update a specific piece of information when a user makes a selection. Problem is the update panel is refreshing the whole page. I've added the trigger and specifically associated the button. Toggled the update mode between conditional and...
8 Jun 2015 by Maciej Los
Sorry, but no one can answer your question. I provided the reasons in the comment to the question.The best way to choose proper component is to read the documentation:RadAjaxManager Overview[^]RadAjaxPanel Overview[^]Quick overview:RadAjaxManagerRadAjaxPanelRadAjaxManager...
8 Jun 2015 by nischalinn
I want to migrated the UpdatePanel control to telerik component. I've multiple listbox. The data for these listbox are fetched from the database.  User Name ...
28 May 2015 by Karmesh_Madhavi
I have code as below.I want to stop automatic collaps control. ...
3 May 2015 by Member 10918596
How to stop UpdatePanel from causing whole page postback '...
29 Mar 2015 by Parazival
DropDownList comboboxcountry= (DropDownList)this.FindControl("comboboxcountry");ScriptManager1.SetFocus(comboboxcountry); write the above code in selecte index changed where autopost back is true
29 Mar 2015 by Parazival
DropDownList comboboxcountry= (DropDownList)this.FindControl("comboboxcountry"); ScriptManager1.SetFocus(comboboxcountry);write the above code in selecte index changed where autopost back is true
29 Mar 2015 by Parazival
Why does the tabindex not work in an update panel? When the updatepanel partially postabcks (e.g. I have a dropdownlist that autopostbacks in the updatepanel) the tab index is broken the the tab key doesnt tab you onto the next control.and tabindex wil goto first tabindex how to solvethankx
22 Mar 2015 by Member 11165607
i have made a page by using modal pop up extender and i use update panel to load data from database to a gridview , and have a button to load it.. below is my code : ...
19 Mar 2015 by Rahul121616
Following is the Jquery code for the change event whenever the file uploaded or changed. var document1FileUpload = $('#Document1FileUpload');var fileNameTextBox1= $('#fileNameTextBox1');document1FileUpload.die(); document1FileUpload.live('change', function () { ...
4 Mar 2015 by DamithSL
place your combo boxes inside update panel. refer : Implement AJAX CascadingDropdown without Web Service in ASP.Net[^]
4 Mar 2015 by Parazival
in my web page state combobox1-----autopostback=trueDistrict combobox2-----autopostback=truecity combobox3whenever we select state it will take some time(2s or 3s) to load or open because of autopostbackfinally myproblem ishow to use update panel on combobox1 and...
5 Feb 2015 by varun150
i had problems with JavaScript libraries after adding this script manager and update panel that was the reason.resolving those errors with devoloper tool does the job.
5 Feb 2015 by varun150
this is the modal page to be loaded. ...
24 Dec 2014 by Nishant Bhuskade
I am inserting data in one table(e.g. InsertTable) & updating another table(e.g. UpldTable) in a loop on a button click.(say loop of 2500 iterations)I want to retrieve updated value from UpldTable. & display it on same page.And on timer_tick event i display value from UpldTable after every 2...
22 Oct 2014 by Member 3787494
I get 'System.Reflection.MethodInfo[]' does not contain a definition for 'Where' and no extension method 'Where' accepting a first argument of type 'System.Reflection.MethodInfo[]' could be found
19 Sep 2014 by Ravikant Gupta82
inside updatepanel Sys.Application.add_load(loadGraph); whereloadGraph is javascript function
16 Sep 2014 by TechSolution
Dear all,I am using visual studio 2010 with reportviewer 10. When I am using updatepanel with reportviewer it takes time to load in IE10. if we change the compatibility mode to 8 then it works fine. it works fine with Firefox and Google chrome also.what could be the possible solution?
16 Sep 2014 by kool15th
I have to use export to csv in asp.net in c#. Its working fine but when used with script manager it stops working.I used ...
16 Sep 2014 by PeejayAdams
Well, I knew that using tables was a bit naughty (I really didn't want to go down the CSS route for a single page, internal web form) but the update panel gets created as a div and that gets confused with the table and therein lies the problem.As soon as I changed my table to divs and...
9 Sep 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)
SolutionWhy are you dynamically adding the button as a Trigger. You are doing it because you are calling one custom Event that is "AddParameterClick".Whatever you are doing inside this Event can be done inside the ItemCommand[^] Event itself. And you can declare ItemCommand Event as a...
4 Sep 2014 by Sinisa Hajnal
Load the initial gallery normally on click. Then, upon user clicking one particular gallery, get image for that gallery. You need to put gallery-id (or however you differentiate the galleries) into button CommandArgument.
4 Sep 2014 by mrkeivan
Hey Guys, I have got two datalists the fist one shows the list of my galleries and the second one shows the images of that gallery. since this is a one page design i want to load images for each gallery by clicking a botton (available for each item in the gallery datalist)I ve been reading...
20 Aug 2014 by Karthik Harve
Hi,Issue is quite simple. your dropdowmlist is inside update panel and gridview is outside update panel. whenever dropdownlist triggers the postback, only the area inside update panel will get refreshed. So, take the gridview inside update panel then it works fine.hope it helps.
20 Aug 2014 by ShaHam11
Hi I have fileupload control, DropDown and GridviewControlWhat is happeningI Upload a excel file which consist of n-sheets and all the sheet gets populated in dropdownlist perfectly and now I select any sheet name from the dropdown and all the rows and columns from excel gets populated...
13 Aug 2014 by Gihan Liyanage
Definitely you cant do outside of the update panel. See this thread.http://ajax.net-tutorials.com/controls/updatepanel-control/[^] http://jeffreypaarhuis.com/2011/08/08/validation-not-working-in-updatepanel/[^]
3 Aug 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)
Try to add Trigger for the UpdatePanel like...
3 Aug 2014 by Member 10988659
All of my gridview features work (insert, delete) except for updating a customer. I can't figure out why my update statement isn't working. When I set a breakpoint on the method, and click the "update" button, nothing happens in the browser, and it doesn't hit my breakpoint either. Does anyone...
4 Jul 2014 by karttick
I m trying to generate updatepanel dynamically on user controll so that i can use that user control on other pages. But the update panel is not working properly on user control. I searched on google but didnt get any desired output. My Script manager is on Master Page.Exception is :1. The...
4 Jul 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)
Add one AsyncPostBackTrigger.
4 Jul 2014 by Raj Negi
I am tring to create like functionality in my project, user can click on image button to like the profile and click again to dislike the profile. Everything working fine but when i click on image button it refresh the whole page. I don't want to refresh whole page so i added update panel but...
25 Jun 2014 by SibeeshKV
Why do you need two update panel. Better use one update panel
23 Jun 2014 by Dev Ashish Jangid
When i am using two updatepanel on same page like thisUpdate Panel 1
20 Jun 2014 by Manoj B. Kalla
Dear,You have to use and configure updatepanel triggers and give any control BUTTON,DROPDONWLIST as triggers.ASP.NET Ajax Extension - Update Panel Example with Trigger[^]above link will help you to find solutions.Let me know if you have any further...
14 Jun 2014 by Debabrata_Das
Hello friend, you can use Ajax UpdatePanel control in Master Page to refresh the content page only. Try the following code:MasterPage.aspx:Master Page
14 Jun 2014 by Nirav Prabtani
try to use iframe instead masterpage.. :)Check out this example .iframrStyle { height: 1000px; width: 100%; border: none; ...
14 Jun 2014 by Member 10202727
I am trying to redirect to different content page through my master page but i don't want to refresh my master page.As our master page is nothing but an content page only but i don't want to refresh master page content.Ant technology in asp.net so that i can achieve it.Thanks
10 Jun 2014 by Kornfeld Eliyahu Peter
When browser loads a web page first it have to load the content, than build a object model (DOM) for that, and just as the last step the JavaScript will run and apply the design (that's the reason to move as much design as possible to CSS).In your case the loading/rendering phase of the page...
10 Jun 2014 by Member 8073143
Hi every Tech geek avilable in this forumI am using the following code and i am using update panelThe issue is that i am using jquery for the alignment of the tabs used in my pagebut when ever the page gets loaded the tabs gets distorted and looks as the initial stage li element and are...
10 Jun 2014 by Nirav Prabtani
see this.. :)How to have a javascript callback executed after an update panel postback?[^]Javascript in update panel doesn't work after partial postback[^]jQuery Plugins not working after ASP.Net AJAX UpdatePanel Partial PostBack or when Asynchronous request is over[^]jQuery...
2 Jun 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)
Quote:Could not find an event named 'CheckedChanged' on associated control 'ddlreason2' for the trigger in UpdatePanel 'upd3'.You have declared the Triggers for UpdatePanel 3 (upd3) as... ...
1 Jun 2014 by pawanvats
Hello froends, I am using updae panel inside an gridview.My motive is to enable a dropdown on the selectedindexchange event of an another dropdown.But it always throw this errorCould not find an event named 'CheckedChanged' on associated control 'ddlreason2' for the trigger...
25 May 2014 by Debabrata_Das
Just wondering if you have already tried by adding MaintainScrollPositionOnPostback="true" in Page tag.
25 May 2014 by Tracy Chong
Hello, I need some help.Currently, I have a gridview that will update with the timer and also a button when clicked, will update the gridview.So now, I am currently facing a problem regarding when scrolling the updatepanel/gridview, I would like it to remain at scrollbar position. But...
28 Apr 2014 by Declan Bright
A technique which ensures that an ASP.NET GridView displays nicely on small screen devices.