Windows Application - Windows Forms

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Good afternoon guys, how was your weekend? Please i have a little challenge and need help. i'm working on a Windows application with an MDI Parent Form and added other windows form that the user can interact with.What i need is;once your are working with the other windows form, you will not be able to perform any operation on the parent form until you close the other windows form or when you are through with the operation you are doing on it. Looking forward to your reply.

Posted 21-Mar-11 0:34am

SIMOKOOL

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Аslam Iqbal 21-Mar-11 7:34am

Are other forms child form?

3 solutions

Solution 5

The "parent" form in a MDI app is always accessible. To prove it, click the menu in the main form of your app. The parent form in a MDI app doesn't have any funcitonality other than a menu, toolbar, and/or status bar.

It looks to me like you're not all that familiar with how MDI applications work. Either that, or I don't understand your question.

Posted 21-Mar-11 1:44am

#realJSOP

Solution 1

You can have static property on this other form that tells other ;) forms that it is open and event to notify the rest that the property has been changed.

Just a quick thought

Posted 21-Mar-11 0:47am

Pawel Gielmuda

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fjdiewornncalwe 21-Mar-11 9:00am

You're trying to manually manage the "ShowDialog" functionality that already exists. You may be wandering away from expected behavior doing it this way.

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Michael Waguih · Accepted Answer · 2011-03-21T01:00:00

Solution 2

Hi SIMOKOOL,

You can use the function :

Child_Form.ShowDialog();

when showing your new Child form but not using it as a MDI Child.

I hope this help,
:)

Posted 21-Mar-11 1:00am

Michael Waguih

Updated 21-Mar-11 2:29am

v2

Comments

Toniyo Jackson 21-Mar-11 7:17am

Correct Answer. +5

Аslam Iqbal 21-Mar-11 7:35am

If you call this then the following error will arise:
"Form that is not a top-level form cannot be displayed as a modal dialog box. Remove the form from any parent form before calling showDialog."

You can't call showDialog while the form is child of the maim MDI form.

Dalek Dave 21-Mar-11 8:53am

That'll work!