disable “Close” button when another dialog is on top

Question

I currently have a problem with forms here.

Whenever some process is ongoing, I have a progress dialog that should popup, but when I click the "X" button of the window/form behind my progress dialog, it will be dismissed and the ongoing operation is cancelled.

How can I prevent that from happening? Should I have to disable my whole form behind my progress bar? and how can I do it?

ps I have tried this and this and this but NONE of them seems to work in my application. T__T

Answer 1

Start the form using Form.ShowDialog() instead of Form.Show() . That will disable the background form (actually any other form in the process) until the form you are showing closes. As an added benefit you can have the form return a value (eg Cancel, OK, Yes, No, etc.) in case any action needs to be taken as a result.

Answer 2

Not actually the answer you might be expecting, but you could handle the Form.FormClosing event, setting e.Cancel = True

This won't disable the Close button, but will make your form remain open in this case.

See more at: http://msdn.microsoft.com/en-us/library/system.windows.forms.form.formclosing.aspx

Answer 3

You should show the progress bar as modal dialog, please check whether this answer work for you javasript like model window on winform

HTH.