Hiding a form without calling FormClosing method

Question

I have two forms and I have linked it up so that when the second form is closed the first is closed too (using the FormClosing method).

The problem with this is that when I wish to hide the second form it automatically closes the first. Is there a way in which a form can be hidden without actually calling the FormClosing method?

The FormClosing method still seems to be called when "Visible = false" and "Hide()" are used.

Thanks.

Related: http://stackoverflow.com/a/2021708/945456 – Jeff B Feb 16 '17 at 14:01 — Jeff B, Feb 16 '17 at 14:01

score 2 · Answer 1 · answered Feb 15 '12 at 12:31

2

call Hide() on the form or Visible=false, but onsider in this case the the form remains in memory and all allocated resources by that form remain in the memory.

If this is a problem for you, I would suggest to revise your architecture.

answered Feb 15 '12 at 12:31

Tigran

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score 2 · Accepted Answer · answered Feb 22 '12 at 14:00

I changed my program so that it is started as below:

        MainForm mainForm = new MainForm();
        mainForm.Show();
        Application.Run();

Instead of:

        Application.Run(new MainForm());

In each of the forms I have added a FormClosing event which checks to see if the user has opted to close the application. If this is the case a prompt is shown to the user to ask for their confirmation:

    private void ImageSelect_FormClosing(object sender, FormClosingEventArgs e)
    {
        if (e.CloseReason == CloseReason.UserClosing)
        {
            if (DialogResult.No == MessageBox.Show("Are you sure you wish to exit?", "Exit Confirmation", MessageBoxButtons.YesNo))
                e.Cancel = true;
            else { Application.Exit(); }
        }
    }

The application now can be closed from any form in the application.

score 0 · Answer 3 · answered Feb 15 '12 at 12:33

0

You want to use form.Hide().

This just conceals the form from the user without actually closing it.

answered Feb 15 '12 at 12:33

ChrisF

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score 0 · Answer 4 · answered Feb 15 '12 at 12:33

0

this.Hide();

or

this.Visible = false;

answered Feb 15 '12 at 12:33

Philip Badilla

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score -1 · Answer 5 · answered Feb 15 '12 at 12:34

-1

If you use WinForms forms the method Hide() should be the one which you are looking for.

answered Feb 15 '12 at 12:34

brgerner

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when I use Hide() it still calls the FormClosing method. – Jpin Feb 15 '12 at 12:36
Maybe you can use property FormClosingEventArgs.CloseReason (https://msdn.microsoft.com/en-us/library/system.windows.forms.formclosingeventargs.closereason%28v=vs.110%29.aspx) within _FormClosing_ method to decide hwat to do. – brgerner Apr 19 '16 at 11:06

Hiding a form without calling FormClosing method

5 Answers5