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9.6

How to capture a Cancel click during a synchronous call?

Asked by esbjorn_larsen in Microsoft Excel Spreadsheet Software

Tags: cancel, userform, button

I have a userform that is used to show a progress bar during a cpu-intense function that takes 5 min or more to complete.  I want the user to have the ability to "cancel" out while the function is executing.  The main function is updating the progress bar on the user forum in a loop to show %complete.  Right now the progress bar is showing fine but I cannot click on my Cancel button on the form.  It hangs until the function has completed.  Is there a way to make a async call?

Here's the flow
---------------------
( 1 )======Invoke the userform by clicking on a button on the sheet
Private Sub btnCalculateAction_Click()
    UserForm1.Show 1
End Sub
( 2 )======Userform calls the main function that is CPU intense
Private Sub UserForm_Activate()
    Call CalculateAction
End Sub
( 3 )======CalculateAction calls an update function that repaints the progress bar with %complete

Please advise!

[+][-]10/10/06 04:44 PM, ID: 17703269Accepted Solution

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About this solution

Zone: Microsoft Excel Spreadsheet Software
Tags: cancel, userform, button
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Solution Provided By: zorvek
Participating Experts: 1
Solution Grade: A
 
[+][-]10/11/06 01:36 PM, ID: 17710508Author Comment

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[+][-]10/11/06 01:45 PM, ID: 17710577Expert Comment

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