e.Cancel is True on Entry to OnClosing

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John Yale - 25 Aug 2005 11:28 GMT

I have an MDI child form which sometimes refuses to close. When the problem
occurs, e.Cancel is set to True on entry to the OnClosing method. I could
just set this False which fixes the problem, but would rather find out the
cause of this.

It only seems to happen under the following conditions:

1. A click event on the form opens another form and hides the first.
2. The second form closes and the first is made visible again.
3. Try to close the first form.

Also it only does this on another computer, not on mine.

Under what conditions could e.Cancel be True on entry to OnClosing?

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John Yale - 26 Aug 2005 14:41 GMT

> I have an MDI child form which sometimes refuses to close. When the
> problem occurs, e.Cancel is set to True on entry to the OnClosing
[quoted text clipped - 10 lines]
>
> Under what conditions could e.Cancel be True on entry to OnClosing?

I have now seen this happen on my PC. A further piece of info is that once
it gets into this state, any attempt to close the form results in the same
problem, i.e. e.Cancel is True on entry to OnClosing. Manually setting
e.Cancel to False allows the form to close, and it is then OK next time.

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e.Cancel is True on Entry to OnClosing

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