MDI form question

[J Homer]

Hello,

I have an MDI app which monitors a folder for new text (txt) files
(using FileSystemWatcher).

When it finds a new file, I like to have the MDI app (already running)
to create and open a new child-form window showing the contents of the
new text file.

However, when a new text file is detected and processed by the event
handler of FileSystemWatcher, it gives an error about threading, and
fails to open the new child-form window.. How can I correct this?

John

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[Chad Chisholm]

Reading this cold, it sounds like you might be on the wrong thread.
Are you firing events from a timer perhaps? Anyway, try checking if
an invoke is required, control.InvokeRequired.
Calls to UI elements must come from the proper thread, and
control.InvokeRequired tells you if you are on the wrong thread, and
an invoke is required.

http://msdn.microsoft.com/library/de...uiredtopic.asp

[J Homer]

Chad,

Thanks a lot for the suggestion. Indeed, that solves the problem.

John

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