AJAX :: Radiobuttonlist Triggers Updatepanel Only A Few Times And Stops Working?
Sep 30, 2010
I have a radiobutton that triggers the updatepanel to display or not..
when the page loads, i can select yes adn it displays, i can select no and it disappears.. i hit yes it reappears.. but after like the 3rd time going back and fourth testing the functionality, it stops displaying all together.
Is there something i need to look at to find out what is going on?
I ahve an update panel that is in my MasterPage, I have put a login panel which includes my login/anonymous views in my update panel. I have added the triggers parameter and I am getting an error. here is the code:
Here is the error I am getting:
A control with ID 'LoginButtonHDR' could not be found for the trigger in UpdatePanel 'UpdatePanel1'.
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: A control with ID 'LoginButtonHDR' could not be found for the trigger in UpdatePanel 'UpdatePanel1'.
We have an updatepanel in our site and there are a number of linkbuttons in it. Please note that the site works fine in all browsers without proxy the proxy changes the url from for instance [URL] to 0-[URL] it also works fine in all browsers but IE the issue is that under proxy and in IE8, it gives an error when clicking one of the linkbuttons, the error message is "Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; InfoPath.1; .NET4.0C; .NET4.0E) Timestamp: Sun, 13 Mar 2011 20:38:58 UTC
Message: 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 ' <!DOCTYPE html PUB'.
Line: 4674 Char: 21 Code: 0"
I have no idea what goes wrong here, it seems that IE can't parse the response?
I've got a problem that after i refresh an update panel all the HoverMenu's stop displaying, it still calls the WebMethod which returns valid html and the panel is displayed, but it content of the panel isn't displayed on the browser.
I've created a single page to demo this problem:
The demo shows the hovermenu working until you click the update button then it stops showing the content, although it is still calling the WebMethod onhover.
I am using VS2008, .net Framework 3.5 and toolkit 3, 0, 30930, 0
I have the same problem as [URL] However, the solution doesn't work for me since I'm using .Net 4.0 and xhtmlConformance is not there from start.
Basically, using a master page, the RadioButtonList still do the whole page postback even it's in the UpdatePanel. When I put the exact same code in a standalone page without a master page, it works as expected.
We have an updatepanel in our site and there are a number of linkbuttons in it.Please note that the site works fine across all browsers without proxy the proxy changes the url from for instance www.mysite.net to 0-www.mysite.net.edu.net it also works fine in all browsers but IE the issue is that under proxy and in IE8, it gives an error when clicking one of the linkbuttons, the error message is
I want to load a popup when a user clicks a button. The buttons are images located inside a tabpanel. The first time the page is loaded the helpEvents DOES display the popup and the 'click' popup. Then I navigate to Tabpanel tab2, and the helpTickets button doesnt work (doesnt even display the 'click' popup) Then I navigate back to Tabpanel tpEventDetails, and the helpEvents button doesnt work anymore either(and also doesnt even display the 'click' popup anymore) So I think something gets lost in the updatepanel on callback...but what? and how to fix it?
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); 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?
I'm having trouble getting a RadioButtonList to correctly trigger the OnSelectedIndexChanged command. I've set AutoPostBack to true, and I've registered the control for AsyncPostBack. It triggers once, but then it won't again.
I am using asp:ScriptManager and asp:UpdatePanel to populate a DropDown , and for every field need to display hits in div.In order to Implement the hint I am using JS, it works fine unless I started to populate a dropdown based on another one.
here is some code lines from page and JS
<asp:ScriptManager ID="sm" runat="server" EnablePageMethods="true"></asp:ScriptManager> <asp:UpdatePanel runat="server" ID="up0"> <ContentTemplate> <dd><asp:DropDownList runat="server" ID="CCategory" CssClass="lst" ValidationGroup="Property" AutoPostBack="true" onselectedindexchanged="CCategory_SelectedIndexChanged" /><span class="hint">Please choose a city where you want to or having a property.<span class="hint-pointer"> </span></span></dd>........
I am using VWD 2008.. I have a RadioButtonList with two options.
I also have an UpdatePanel
When the LoadingOption change it then has some code behind that at the moment changes the <asp:Literal ID="ItemName" runat="server" /> text.
If I don't have a Radiobutton selected when the page loads then all works fine. i.e. I can select either radiobutton and the ItemName updates correctly.... Whats the problem you may ask ????
Well I want to have one of the Radio buttons selected when the page has been loaded (like a default setting). So I do this <asp:ListItem Text="1kVA" Value="1kVA" Selected="True" />........ Here is my problem, When I select the other option (7kVA) the ItemName updates fine BUT if I then select the first option (1kVA) the ItemName does not update. I added another button that just does a postback. When the button is clicked the ItemName updates correctly. OK, fine but I don't want that. I want to be able to click on one option and the ItemName updates then click on the other option and the ItemName updates.
Have I missed something out ??
By the way if I set the <asp:AsyncPostBackTrigger ControlID="LoadingOptions" /> to <asp:PostBackTrigger ControlID="LoadingOptions" /> then it works how I want it apart from the reloading of the page, I would like it to update in Async Mode so it is seemless and no page reload.
This is not a big issue since it's quite easy to bypass by making a new project and copying everything on it, but it bothers me quite a bit that I can't figure out what it is about. In short my calendar and calendar extenders stop working suddenly. The last time this happened I made some changes to the pages code behind, then hit undo gazillion times to go back to the last save. After that I hit debug and lo and behold: calendar did not respond to any clicks and any text field with calendar extender did not show calendar on clicking them.
This happens in both IE8 and FireFox 3.6 and no amount or restart, rebuild and other such tricks do nothing. The only thing that I can figure out to solve the problem is either use a backup copy of a version that works or make a new project and then copy all the files from the not working into the new/earlier version and all works again. I was able to track down that this seems to relate somehow to AJAX as when I ran the debug I mention above, I got error messages on the web page saying something about AJAX. This however happened only once and I cant get it to happen again (and thus can not remember much about what it said).
Also when I debugged the event handling the calendar click, I get an error message like this: There is no source code available for the current location Then it opens a file search window trying to find some cs file inside the ajax control toolkit. However this only happened the first time I tried debugging the event and I can't remember more details about it. Now I just get that error message when debug exits the event.
So end analysis on my part: The ajax control tool kit gets knotted up all of a sudden for some mysterious reason and is tied to that particular project. Can anyone tell me what this could be about?
I have an Ajax timer that has an interval of 1 second and an update panel on my page. If I leave the page open and never close or refresh I notice that after 6 to 8 hours the timer stops firing. No error messages.......everything just stops. If I refresh the page everything starts working again. Are there any issues I am not aware of when running a page for a long time using the Ajax timer?
I have a gridview in an updatepanel that is set to always update. I have a delete command button in an item tamplate. For this delete button I am using a ConfirmButtonExtender and ModalPopupExtender for deleting. This works fine initially when the page first loads. However, if I edit an item in the grid (which hides the grid and displays the selected item's info) and either save or cancel (which displays the grid again) and then try the delete, the modal popup displays, and if I click yes to delete, the row will now not delete. The delete command does not fire. Here is the code for my gridview.
I have a test page with links that open a panel modally (using AJAXControlToolkit: ModalPopupExtender). I am using an update panel. After clicking any of the links about 10 times, the popup is shown buried under the links (and is not accessible). When I limit the content on the page, the number of times is extended. My thought is that this may be a "data limit" in relation to the update panel, as this works fine when the update panel is removed. I would love to post the code, but this form won't let me. I can certainly send the webform if anyone is interested.
I am trying to write a quote generator. For each product, there are a set of options. I want to dynamically add a drop down list for each option, and then have their SelectedIndexChanged events all wired up to update the quote cost.
I am not having any trouble adding the DropDownList controls to my UpdatePanel, but I can't seem to wire up the events.
After the page loads, the drop downs are there, with their data, but changing them does not call the SelectedIndexChanged event handler, nor does the QuoteUpdatePanel update. I have something like this:
Edit: Since programmatically adding AsyncPostBackTrigger controls is not supported, I've change my code to this, but I still don't get the event:
Edit 2: Tried adding a PlaceHolder to add the drop down lists to (instead directly into the ContentTemplateContainer, still no events firing.
The first dropdownlist is for the type: SELECT * FROM TypesThe second dropdownlist is for the brand: SELECT * FROM Brandsnd the third dropdownlist is for the model:SELECT a.id, a.descriptionFROM Models AS a INNER JOIN Items AS b on b.id_modelo = a.idWHERE b.id_type = @id_typeAND a.id_brand = @id_brandGROUP BY a.id,a.descriptionORDER BY a.descriptionI have an UPDATEPANEL only on the Models dropdownlist with the asynchronous trigger on the Brands dropdownlist. THe problem is when i change the Type, i want the other 2 dropdownlists to reset or just the Models dropdownlist.
I am using 3 updatepanels and each one of them having the formviews in each....
updatepanel1 updatepanel2 fromview 1 [code]...
the problem is the child triggers are not recognising these buttons because its inside a fromview..but on each button click everyting in two update panels are getting postback and doing sql calls...which makes updatepanels useless other than avoiding fullpostback.. how to set a childtriggger for buttons inside a formview of update panel...
all updatepanels are set to ChildrenAsTriggers="true" UpdateMode="Conditional"
When the user selects an "account" we dynamically create a linkbutton with the selected dates. However, the linkbutton onclick handler doesn't fire when the button is clicked.
Dim linkBtn As New LinkButton linkBtn.Text = "blah" AddHandler linkBtn.Click, AddressOf linkButtonHandler linkBtn.ID = panelDatesRencontre.Controls.OfType(Of LinkButton).Count panelDatesRencontre.Controls.Add(linkBtn) ScriptManager1.RegisterAsyncPostBackControl(linkBtn) Dim Trigger1 As New AsyncPostBackTrigger Trigger1.ControlID = linkBtn.ID Trigger1.EventName = "Click" UpdatePanel2.Triggers.Add(Trigger1)
Answer: i make that in page_load, it seems to work