AJAX :: The TargetControlID Of 'ViewAdd' Is Not Valid. A Control With ID 'lnkedit' Could Not Be Found
Jun 24, 2010
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."
+ $exception {"The TargetControlID of 'DynamicPopulateFileDownloadUI' is not valid. A control with ID 'PanelDownLoadUI' could not be found."} System.Exception {System.InvalidOperationException}
I'm using the AJAX ModalPopupExtender control in order to popup a "Login" panel. My problem is that the TargetControlID property happens to be an ASP.Net Menu Control Item. How do I reference that menu item where it's becomes a valid value for the TargetControlID property?
Code: Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load Try Response.Write(Session("ValidUser").ToString & "<br />") Catch ex As System.Exception Response.Write("Valid User Session Variable Not Found: " & ex.ToString & "<br />") End Try
[Code] .....
This the page that users are redirected to after logging on and, after verifying their credentials at the log-on stage, should show 'Hello DonaldDuck@Disney.com, Welcome to my website'.
Do these errors mean that the user cannot be validated in the database?
I'm using AJAX calendar control in a tabcontainer, The date is being captrued in the following format: "3/11/2010" (MM/DD/YYYY).And on code behind i'm converting the above value to datetime like this, Everytime i'm getting the error "String was not recognized as a valid datetime".Can anyone please help me out fixing this problem..
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.
I have a Datalist with ID="dlCodes" and I have chechbox control with in datalist with id="chkCode".I want this chkCode as a trigger for my button click id ="btnContinue".both button and datalist are placed in update panels.
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 ?
I can invoke the modal popup by clicking on a control using the TargetControlID, but for some reason I haven't been able to invoke it with codebehind. How do I do that (vb)
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 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.