How to close forms,when switching from one to another.

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Hello all,
I need an advice,i have a smartdevice application,and i have to go from one form to another.For example,i have two forms Form1 and Form2,when i open Form2,Form1 should close. I use this code:

C#

Form2 myNewForm = new Form2();
            
            myNewForm.Visible = true;

            myNewForm.ShowDialog();
        
            this.Close();

but when i close the application,with Application.Exit() i can see the cascade of Forms closing.

Any Help how to do this?
Thanx in advance

Posted 10-Apr-12 0:14am

IviKAZAZI

Updated 10-Apr-12 0:46am

v2

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StM0n 10-Apr-12 6:54am

is "this" the form started by main?

2 solutions

Solution 1

C#

Form2 myNewForm = new Form2();
            
            myNewForm.Visible = true;
 
            myNewForm.ShowDialog();
        
            form1.hide();

Posted 10-Apr-12 0:19am

AshishChaudha

Comments

IviKAZAZI 10-Apr-12 6:20am

Does the hide() close the form???

StM0n 10-Apr-12 6:52am

No...

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VJ Reddy · Accepted Answer · 2012-04-10T14:23:00

From the code given in the question it appears that the myNewForm is declared in the current form. Hence, eventhough this.Close(); is called the GC will not release the memory held by the present form referred by this, as a reference to myNewForm is held by this form.
So, declare myNewForm in another location accessible from this form.
myNewForm.Visible = true; is redundant as myNewForm.ShowDialog(); makes it visible.
It is better to call Dispose method from outside the form, like Fom1.Dispose() for immediate disposal by GC.