Can a UserControl invoke a modeless (non-dialog) form when, in a host project, it's on a modal (dialog) parent form?

Question

WHAT I HAVE:

Visual Basic 2015, WinForms

MY PROBLEM:

I've got a UserControl project which include a WinForms element so my control can invoke a form (i.e., a Find/Replace form for a rich-text-editor UserControl). The question is, what if I want the form it invokes to be modeless (non-dialog, so the user can go back to the UserControl while it's showing) but there's a chance the control's own parent form (in a host project) is a modal (dialog) form (sometimes that's unavoidable)? In the primordial days of "Classic VB", it wasn't possible for a modal form to invoke a modeless form. Has .NET overcome that limitation, or should I require that my form-within-a-user-control be invoked dialog-style?

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Robert Gustafson

Answer 1

Did you try it? It would take as much time to create a test project as it does to type the question.

I don't k now what you are asking. You ask about "should I require that my form-within-a-user-control" but it is not clear why you might need that.

If I understand what you are asking then it works except the modeless form remains shown when I close the form that showed it. So I assume you would want to explicitly close the modeless form.

First try it and then if you have questions then you can be more specific.

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Sam Hobbs
SimpleSamples.Info