AJAX :: TargetControlID Not Found When Using Master Page
Aug 17, 2010
I'm trying to use the
ajaxtoolkit dynamic poplulate..
+ $exception {"The TargetControlID of 'DynamicPopulateFileDownloadUI' is not valid. A control with ID 'PanelDownLoadUI' could not be found."} System.Exception {System.InvalidOperationException}
I have template column in grid view where data is binding to a link button. Now I want to show my model popup on click of that link button but it is giving error :
"The TargetControlID of 'ViewAdd' is not valid. A control with ID 'lnkedit' could not be found."
I am using ASP.NET 2.0 with VB. In design view of grid, i have one textbox in its template field. I also have one Ajax Calender Extender and FilteredTextBox Extender. I have set target controlId of both calender and filteredtextbox extender equal to that textbox. Now dynamically i dispose one of the extender from that textbox. everything works ok. But once my page reloads it takes the original design image, means both extenders are being set to that textbox.
I have a Web Site project, and within it I have a user Web Control defined in an ascx file.The control is added to the Site.Master, and it shows up correctly on the page and everything is fine.I need to override some of the control's fields on one of the pages that derive from Site.Master.
// In OnLoad: MyControlName control = (MyControlName) Page.Master.GetBaseMasterPage().FindControl("controlID"));
The issue is that MyControlName doesn't register as a valid Type on the child page. If I add a second instance of the control to the child page directly, the above works as needed, but if the control isn't placed directly on the page, and instead is only defined in the master page, the type is undefined. The control is not in a namespace, and is defined within the project, so I don't know why it is having such an issue location the appropriate type.If I put a breakpoint in the OnLoad, the type listed for the control is ASP.my_control_name_ascx, but using that does not work either. Why can't the child class reference the correct type? Can I fix this?
I wantto show up manually a ModalPopupextender without its TargetControlID assigned to anything. Thus I dont need a button or linkbutton that triggers to show it up.
I put a hiddenfield and attached it to TargetControlID and I can call ModalPopup manually by its show() method.
so why should I have to assign TargetControlID ? I dont wantto use a useless hiddenfield to attach as its Target.is there any other Ajax Control Modal Window that no need a Target ?
I have a gridview showing list of data . When I select one of the row in the gridview, I would like to get panal (say Panel1) to be popup. I used the Ajax ModalPopupExtender but I don't know what should be the value in TargetControlID ?
i want to use a ComponentArt:ToolBarItem ID as TargetControlID in AjaxControlToolkit ModalPopupExtender. my ComponentArt:ToolBarItem ID is "save" but when i write this (TargetControlID="save") this error apears:
The TargetControlID of 'ModalPopupExtender' is not valid. A control with ID 'save' could not be found.
I'm trying to use a ModalPopupExtender in a user control, so the TargetControl is on the previous (parent) page. In the PageLoad event of the user control, the following code finds the MPE and the button from the previous page, but I don't understand how to actually assign the button to the MPE as the TargetControlID.
I'm firing the my ModalPopupExtender from a server side button click (bthAuth) and then need to hide that button after my processing is complete. When btnAuth.Visible = False is called it displays the ModalPopupExtender. If I remove this piece of code the window goes away like it should.
Apparently, I cannot display or hide a Panel through ModalPopupExtender if the TargetControlID is not visible in the webform.
The TargetControl of my ModalPopupExtender is button_displayPanel. But once the panel's shown and closed, I hide button_displayPanel and another button is displayed. I need to be able to open the panel from this 2nd button.
Basically, I need to show the panel through another button since the ModalPopupExtender's TargetControl will not be visible.
I use javascript to show the panel::
[Code]....
If the target control's invisible, I get error "Error: 'null' is null or not an object" since the control's not rendered.
im using AnimationExtender 2 fadeout a panel n d click event of a image..im using sme 10 images n same page and shld i write separate AnimationExtender for all images...
how 2 change d targetcontrolid of d animation extender n a javascript function....
On each image, I want to open a popup with "Download" & "Print" buttons.
I was thinking to create a panel and open a popup on linkbutton click by using ajaxToolkit:ModalPopupExtender . But, I realized that for I will need 3 such panels & ModalPopup's for each image as got to set TargetControlId for each link button.
In my other page, I will have more than 10 images.
What can be the best way to achieve this goal in such way that thru out my app I can call this popup and download or print the image ?
It is working for me but the major problem is that in modelpopup extender in which i have given targetcontrolid of PanelCountry so when i click on next page of Gridview in it opens a PopUp,while i want to open popup when Edit button of Gridview is clicked not for next page of Gridview.
I mean how i will set the TargetcontrolId of Edit button of Gridview in PanelCountry for modelpopup.
I've upgraded my web application from ASP.NET 2.0 framework to 3.5. I've also updated AJAX toolkit from 2.0 to 3.5. The updated was made on 20th of January.
However today the application started giving me error that there is no ScriptManager on the page although it's (I'm using AJAX ModalPopupExtender on 2 pages). I didn't change anything on the pages except yesterday I've added one ASCX control to both pages but problem doesn't disappear even if I remove the control.
Basically the thing stopped working for no particular reason. I will try to reinstall the AJAX toolkit and I think that there are maybe somethings to change in web config but it's strange since it worked perfectly until few hours ago.
I wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
code.<script type = "text/javascript"> function ShowCurrentDateTime() { $.ajax({ [code]....
But I am getting compiler error when use Page.Master: Reference to non-shared member requires an object reference
How to pass Master Page object or Page to Page method?. So I can use in Sared method.Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
Ajax calendar control not working properly with content place holder of Master Page.Most of time Calender Control hides when mouseover with out changing date in content place holder of Master Page.same code works in normal aspx pages.
I am trying to use tab control with Ajax toolkit. I want to use my master page which is plain page and I want to show the tab function of gridview. I want to give the tab control only the gridview page partically on master page. If it is possible, I am going to put other gridview at this page. That means tab control ONLY gridview. Is it possible?