AJAX :: AsyncFileUpload And UpdatePanels?

Jan 2, 2011

I moved from the FileUpload control to the AsyncFileUpload control.

1) Do AsyncFileUpload controls work under UpdatePanels??? (Please provide example or reference)

2) Can AsyncFileUpload controls be triggerd with an update button (both inside the same updatepanel)?

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AJAX :: Getting Error 500 When Using Updatepanels?

Jan 18, 2010

I have a problem on my website, when using updatepanels:

Most of the time everything works fine, but a few times a day a user will get an error 500 as response to a partial postback in an updatepanel. The problems are:

1) I can see in my server logs that the request is processed without errors.

2) There is no log entry from the function handling AsyncPostBackErrors, although that is the first thing it does.

3) The function handling AsyncPostBackErrors changes the AsyncPostBackErrorMessage, but the users see a generic text which the function will never output.

So my theory is that the request does not cause an syncPostBackError at all. I can see in the logs, that there have always been an AsyncPostBackError from another request at almost the same time. So I suspect that one request somehow gets tainted with the error of the failing request.

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AJAX :: Multiple UpdatePanels Are Affecting Each Other?

Jan 5, 2010

On my page which uses nested master pages, I have several user controls which are in their own UpdatePanels.

I've noticed that when I update something which is in UpdatePanel 2, things are shifting slightly in UpdatePanel 1. Someone told me that when UpdatePanels are used, the page is reloading anyway. Is this true?

How do I prevent UpdatePanel 2 affecting UpdatePanel 1?

P.S. All update panels are set to Conditional in their UpdateMode's.

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AJAX :: Multiple Updatepanels Are Independent Of Each Other?

Oct 9, 2010

I just want to make sure that I got this right. If I have two update panels, and updatepanel1 has 10 dynamic controls created from an external button that resides on the page by default.. and then i have a second button which also is on the page by default but is an asynctrigger to updatepanel2...

then when the first updatepanel1 is populated with dynamic controls, then when I click button2 to update the second updatepanel2 with some data, the dynamic controls in updatepanel1 wil;l still remain there right? but does it persist by itself on postback? And if so why?

because when I click button2 to update updatepanel2, it does a partial page postback. So when it does a partial page postback, does that mean it does not destroy updatepanel1's dynamic controls?

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AJAX :: Any Disadvantages If Use More UpdatePanels In Application?

Feb 16, 2010

is there any disadvantages if we use more UpdatePanels in our application.

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AJAX :: UpdatePanels W/ Triggers And AutoPosteBack?

Jul 23, 2010

I am fairly new to ASP.NET and just started using UpdatePanels.Here's what I'm trying to accomplish. I have a button which is wrapped up in the UpdatePanel like so:


The following is the mark-up for the textbox which is supposed trigger an update when its text changes:

With the current set-up, the button's text doesn't change when the textbox content changes. At first I suspected that the reason it didn't modify button's text was because I didn't set AutoPostBack to true on the textbox (tried enabling and it didn't work though),
but then I why would I want to? I'm not getting any data from the server - I just want to update a button on the client side.

I'd really appreciate if you could point out what I'm doing wrong and maybe also clarify when AutoPostBack is absolutely necessary and what are some of the special cases in which it needs to be used.

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AJAX :: Debug Or Step Through Updatepanels?

Nov 12, 2010

debug or step through updatepanels?

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AJAX :: Multiple UpdatePanels Refreshing Whole Page...

Aug 18, 2010

I have been reading a lot about UpdateMode set to Conditional on multiple UpdatePanels on a page. It seems that when set to Conditional only the UpdatePanel affected by the event will refresh. It is not happening on my case and I don't know what am I doing wrong.

This is the scenario. I have 4 updatePanel all set to Conditional. I have external buttons that will call the Update method per each panel but the whole page refreshes when I click on any of the buttons.

Here is a sample code:


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AJAX :: How To Update Multiple Updatepanels Simultaneously

Feb 3, 2010

I have a page in which there are multiple updatepanels and each of these update panels are trigerred by different triggers.

These update panels are used to do Async post back and the page is updated with the data retrieved from the async post back.

Now the issue i am facing is that since there are multiple update panels, the update done by one panel is lost when the other panels does the post back.

let me know if any one knows on how to solve this issue.

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AJAX :: How To Refresh Updatepanels Inside Tabs

Jul 23, 2010

I have a two usercontrols sales and salessearch. they are inside two tabs. I want to refresh the contents inside the tabs when i click in the tab headings, which are basicaly <a> tags. Right now when i switch between tabs I have no way of updating them.

How do i make the tabcontents refresh when i click on tab headings.

Following is the code...

I use a javascript function selecttab() to switch between tabs.


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AJAX :: Trying To Programmatically Update One Of The UpdatePanels On A Page?

May 2, 2010

I seem to be having issues trying to programmatically update one of the UpdatePanels on a page i'm developing.Basically what i'm trying to do is...

have one update panel on the master page (used to show summary info like errors and success message) and then a updatepanel on the content pages, all of which are conditional. where its not working (or i'm doing something wrong) is when i call a method in the master page to update its updatepanel to show the new summary message it does nothing.

i.e. (content page)





load content. [code]....

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AJAX :: How To Retain Focus After Postback (updatepanels)

May 14, 2010

We currently have a page with several user controls (8 of them) and when a control that is contained in an updatepanel initiates a postback the focus is not retained. In some cases, it looks like the focus is sent to the top of the page, and in other cases the focus looks like it is sent to the control with the TabIndex=1.

I have tried 3 different solutions and they all end up with the same result.

The first two were from article:

Solution 1: At the end of the server event executed in postback, add:


The article says both of those solutions worked, but for us, neither of them did.[Code]....



In all 3 scenarios the control we want to have the focus gets the focus for a split second and then the focus is cleared (set to the top of page, or TabIndex=1).

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AJAX :: Nested Updatepanels And Async Postbacks?

Mar 23, 2011

I'm trying to get something like this to work


What I'm looking for is to disable the submit button if any of the inner updatepanels are in postback mode. I would also like some way to block that particular panel. I guess for the outer updatepanel, updatemode should be set to conditional, and usechildrenastriggers should be false. What's really bugging me is how to block the panel while a postback is occurring.

In all my tests thus far, the outer updatepanel's updateprogress is triggered, which blocks the whole page.

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AJAX :: Use One Big UpdatePanel / Few Small UpdatePanels On Same Page?

Jun 10, 2010

I am having now two UpdatePanels on the same content page. One is a big UpdatePanel and another is a very small one. I can insert the little one content to the big one, but it means some info I don't need to update with Ajax at all will be init two, because of UI issues. What is better for performance? One big UpdatePanel or a small ones?

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AJAX :: TabPanels And UpdatePanels And SelectedIndexChanged Event Of The DDL?

Jan 29, 2010

I have a DropDownList in a TabPanel.In a separate TabPanel I have a control wrapped in an UpdatePanel which is tied to the SelectedIndexChanged event of the DDL in the first panel.At run-time I get an error from the UpdatePanel indicating the DDL control does not exist.

I moved the UpdatePanel into the same TabPanel with the DDL.The DDL has AutoPostBack set to true and the event for SelectedIndexChanged never fires.I also turned off Validation in case a validator was capturing it.This all worked fine before I "tabified" this page.

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AJAX :: Multiple UpdatePanels Should Execute One By One, But Button Is Outside Those Updatepanel

Jul 14, 2010

In my asp.net application in one of the Page I need to create 3 Panels. These 3 Panels I had already kept in 3 Updatepanels. Now, Outside the UpdatePanels, I have a dropdown. Selecting the Value from Dropdown, those 3 panels will be populated from database.

Each of the UpdatePanels have their UpdateProgrees Control. Now What I want is that those 3 UpdatePanels should filled up one by one.

How to achieve this functionality ?

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AJAX :: Nested Updatepanels - How To Update Child And Not Parent

Jan 22, 2011

just like how this person wrote his post...


how can you update the parent and set the child not to update?

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AJAX :: Collection Of Buttons With Just 1 Popupextender With Nested Updatepanels?

Dec 15, 2010

I have an asp:Table which resides inside an asp:updatepanel. Most (but not all) asp:TableCell's are filled with buttons which all should be opening the same popupwindow though with different content (depending on the button that was clicked), and the popup itself has its own updatepanels, as the purpose of the popup-window is being an interactive form.My question is: (how) can I use a popupextender for more than 1 button, so that it works with async postbacks? setting the TargetControlID to the id of the button that was clicked will only happen -indeed-after clicking the button so a full page postback is already happening when setting it.Or should I create one popupextender for each button in my table which all point to the same asp:panel? the buttons are created runtime, then where do I go from there?Or am I still on the wrong track here?

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AJAX :: Google Interactive Chart Inside Tabcontainer And Updatepanels?

Jun 2, 2010

I'm trying to implement Google Interactive chart inside an updatepanel.

The regular Google Charts do work (I think because there I'm just calling an URL).

But now I want the interactive chart inside an updatepanel within a tabcontainer etc. But now the request to Google is made, resulting in an infinitely loading white page to Google.

How can I get this to work?

See my FULL code below.



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AJAX :: GridView With UpdatePanels - Data Will Fetch Whenever Page Loads

Jan 16, 2011

I have two grids "grid1" and "grid2" and two updatePanels "up1" and "up2". Both the panels have UpdateMode = "Conditional" grid1 is nested in up1 and grid2 is nested in up2 [Code]....

In Code behind : [Code]....

I am using UpdatePanels, but still data will be fetched whenever page loads. How can I handle so the dat will be fetched on ony for the grid which is being updated

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AJAX :: Timer Control Forces All UpdatePanels On The Page To Refresh?

Jun 21, 2010

I am using a timer control on one of my updatepanels in the asp.net website.

my problem is that behind the scenes the postback is a full postback, therefore any content that is placed under any other UpdatePanel is refreshed, as well.

How can i specify the timer functionality ONLY to the specific update panel, leaving other update panels, which do not contain a timer, unrefreshed.

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AJAX :: JQuery DatePicker Not Working Properly With Multiple UpdatePanels

Mar 26, 2016

Have some updatepanel that i have Datepicker inside it. Datepicker don't work after postback.

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AJAX :: ModalPopupExtender And UpdatePanels - Find The Rows In The Datagrid That Have Been Checked With The Checkboxes?

Jun 22, 2010

I have created a popup window with the modalpopupextender. Inside the popup window is an Updatepanel that contains an OK button, a Search Button, a databound Datagrid and some checkboxes.

The problem is that when i press the OK button, i want to find the rows in the datagrid that have been checked with the checkboxes.... but i can't find the datagrid on the page! Any suggestions to how i can find the datagrid in the updatepanel?

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AJAX :: UpdatePanel Inside GridView Causes Other UpdatePanels On Page To Post Form Data?

Jul 21, 2010

I hope this is a really easy question but I'm struggling with it. I have a GridView that has an UpdatePanel within a TemplateField.

The idea is that the user can make simple alterations without a full page load being required.

I have simulated my page functionality in the following example, which simulates a database hit, gridview databinding and updatepanel functionality.

When you press any of the + or - buttons in the GridView, the form controls in the bottom UpdatePanel also post their contents back. I have seen this by using Firebug. On my real page however this is causing excessive bandwidth and is nearly the same as a full postback.

how I can force ONLY the appropriate UpdatePanel's contents to postback for processing, rather than all the UpdatePanels?? I've tried experimenting with Triggers but just can't get it working properly.



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AJAX :: Add Required Validator To Ajax AsyncFileUpload?

Jun 3, 2010

How to add client side required validator to asyncfileupload ,to enforce user to select file before submitting the page.

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