Need Help with Modal Popup!

Here's the deal...

I have a bound DetailsView (user control) that I have created custom command buttons for (add, edit, save, cancel).

Upon edit, I am storing the values for each field to hidden textboxes on the form. Upon save, I will need to run custom validation routine(s), as well as, compare old vs. new values (some changes will trigger back-end processes to kick off via SQL triggers and we want alert the user of this up front).

Once validation passes, if one or more of the values have changed that will cause execution of the triggers, I want to manually launch a popup [ modalpopup1.show() ] that lists the specific changes and asks the user to Confirm (ie., "Are they sure they want to Save?"). If so, the app will proceed with updating / saving the record and the SQL proc will go ahead and execute. If not, the update is cancelled and the detailsview goes back into read only mode.

Problem I am having is that the Modal wants me to specify a "TargetControlId" and I am not sure what that control should be. I tried making it the Save button, but doing so will cause the modal to appear immediately (ie., before the validations and old vs. new compare routine) executes. So I then tried creating a dummy button, but get the following error message: "The control 'btn_Dummy' already has a data item registered. Parameter name: control".

Can anyone help me on the proper way to code / implement this ?

Hi ,

The "TargetControlId" specifies the Control which will trigger the ModalPopup to Show .

What you can do is .. Once you come to know that certain changes have been made to the data , you can use the Client side methods of the ModalPopup to Show / Hide

Show and Hide ModalPopupExtender from JavaScript

Let me know if I missed anything

I tried this via example provided via thread ("Show Popup Dynamically via js") , but I really would like to popup the modal from another button's code behind (ie., after all my validations checks have been completed). Is there not a way to do this?

If not, I guess the only alternative would be to re-write the validation routines in js and call the popup from there??

From ServerSide , you have access to the ModalPopup's Show method using

ModalPopupExtender1.Show()

From Client side , use the method described in my previous reply.

Hi,

Still getting error message "data item already registered" when attempting to use ModalPopupExtender1.show().

Found thishttp://www.codeplex.com/AtlasControlToolkit/WorkItem/View.aspx?WorkItemId=7115 after doing more research on Google. It appears to be a bug.

Appreciate your trying to help. I've decide to manually hide / unhide my panels instead of the AJAX control until the above is resolved.

Thanks,

Annette