Is there a way to check if a MessageBox is showing from a form event, and close it if so? Or would I need to use a form for this? Or would that not work either, and I need to create a custom panel that is non-modal?
you can create modal dialogs and modal messageboxes setting modal:false.
Then they act modal only on the client.
Apart from that there is no way to get a reference to the message box instance.
Hope that helps.
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