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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Mar 23, 2011
I'm trying to get something like this to work
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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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Jan 22, 2011
just like how this person wrote his post...
[URL]
how can you update the parent and set the child not to update?
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Dec 15, 2010
I am fairly new to web development & stuck up using the ajax:popupExtender inside a gridview/Itemtemplate. So, would like to get help from experts in the forum
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Currently I m developing a web page which holds a grivview. As one of the column needs a multiple column dropdown with soring facility, I am using ajax:popupExtender to achive that. Basically in the column i have a Panel1(label & image which mocks up has a dropdown), ajax:popupExtender, Panel1(gridview to have mutiple column). When user clicks on it the ajax:popupExtender is called & the targetpopupid which is a panel2 with gridview is called.
Here when user clicks on thePanel1, I am able to display Panel2 using ajax:popupExtender. Also, when user selects some row, I am able to close/hide the ajax:popupExtender in the code behind using cancel(). (this is done in selectItemIndexchange of panel2 grid view).
But my problem comes when user doesn't select any row & clicks back on the panel1, the ajax:popupExtender will remain open. but it should have been closed as i am trying to mock up dropdown dunctionality. how can I hide/close ajax:popupExtender when user clicks on panel1 2nd time.
Following are the different approaches I tried but nothing worked out.
1. wrote JS, & tried to add attributes of the Panel1's onclick event.
Failed: Error - Object is undefined. even though i passed a valid obj from code behind.
<script language="javascript">
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Mar 24, 2011
I have a popup extender that shows when an edit button in a grid is clicked. I am disabling the checkbox and submit button when a particular row is clicked with sone validation. When I close the popup and show again by pressing button on another row the controls are still disabled. Why are these controls properties set permanently on entering the if condition ?
button click event for button on the panel that pops up on a button press in grid
[Code]....
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Feb 19, 2010
I have a lot of data to display in a GridView. Because there's so much information per row, I'd like to be able to display additional information when a user clicks on the row, so I thought a PopupExtender from the AJAX Toolkit would be perfect.
Ideally, I want the popup to display whenever any of the controls within the row are selected. I've been able to successfully attach the PopupExtender to a single control within the row, but I can't get the pop-up to attach to the row itself.
I would have thought that setting the PopupExtender's TargetControlId to the Row's ClientID within the RowDataBound event would work, but when I do this I get a runtime error:
TargetControlID of 'popupExtId' is not valid. A control with ID 'gvList_ctl02' could not be found.
I noticed that the GridViewRow is rendered, the tr element does not include an id, so I also tried extending the GridView control to override the CreateRow method to render the id - using this method I was able to render the row's ID (e.g. gvList_ctl02), but the same runtime error was thrown when I added the PopupExtender back into the code.
I also tried binding the showPopup() javascript command to the row's onclick event to get the popup to display manually; whilst the click event is registered OK and is definitely triggered, the popup is still not shown.
Does anyone have any idea how to / if you can bind a PopupExtender to a GridViewRow?
My row bound code is as follows:
protected void gvList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
// Bind the popup extender's target ID to the row ID
// This will cause a runtime error
PopupControlExtender pop = e.Row.FindControl("popupExtId") as PopupControlExtender;
pop.TargetControlID = e.Row.ClientID;
// Also bind the client side click handler to try to get the popup to show
// The alert is triggered and no javascript error is generated, but the popup does not display
e.Row.Attributes.Add("onclick", "alert('Row Clicked'); $find('" + pop.BehaviorID + "').showPopup();");
}
}
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Dec 28, 2010
how to setting the targetcontrolId and showing the popupextender in javascript by using popupextender behaviourId or its serverId?
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May 19, 2010
I have a page with one button. When the button is clicked, a ModalPopupExtender is open, and data is populated from database and displayed in the popup box. The data retrieved is bound to dynamically generated CheckBoxLists, one CheckBoxList for each category (there maybe 3, maybe 5 CheckBoxLists, depending on the categories). I need take down whatever the user checked on those CheckBoxLists from the popup window. But I got no way to find those checked items. Any button in the popup window dose only one thing: closes the window. No matter what I code under this button, is not executed.
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Panel ID="popupPanel" runat="server" CssClass="register" >
<br />
[Code]....
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Jun 29, 2010
I have a View with a model (Transcript) that has a collection of HighSchools and each high schools have a collection of grades.
I have a helper that generates a unique prefix to the id's of the controls when i create a new highschool and grades for those highschools dynamically.
The end result of the generated control names are something like HighSchool[0].Grades[random GUID].CourseName.
This works out well for everything except the ValidatorMessageFor. I can look at the modalstate error collection and see that those keys are exactly the same as the names of the inputs that they are validating so I guess my question is why aren't the validationmessages applying to the form fields with those names?
I do the same thing for highschools, generating and id of something like this - HighSchool[random GUID].Name and the validators work just fine.
[I should also mention that the validationsummary is displaying properly. Why would that display fine but not the validationmessagefor unless the field ids don't match what is in the model state dictionary but they do match! What is going on?]
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Feb 10, 2011
I am embedding a popup extender inside a tab...simple enough - for some reason the content is visible when the page loads - it can be dismissed by selecting the button and then dismissing the popup. Everything works in compatability mode.
I can't tag the panel as visible=false as it is no longer rendered at all.
[Code]....
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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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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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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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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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Feb 16, 2010
is there any disadvantages if we use more UpdatePanels in our application.
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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:
[Code]....
The following is the mark-up for the textbox which is supposed trigger an update when its text changes:
[Code]....
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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Nov 12, 2010
debug or step through updatepanels?
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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:
code]....
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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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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.
[code]....
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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)
page_load()...
{
try
{
load content. [code]....
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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:
[URL]
Solution 1: At the end of the server event executed in postback, add:
[Code]....
The article says both of those solutions worked, but for us, neither of them did.[Code]....
ASPX.CS
[Code]....
[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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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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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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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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