Form problem with ActiveX DLL called from C#

[Ata ?smet ?z?elik]

Hi i am developing a Windows.Forms Application and I am using an
ActiveX dll built in C++.
I define a delegate for the eventhandler built in the DLL and using a
method that is bound to it. My main form is waiting for the event to
be occur. The problem is in the method that is bound to the delegate i
am trying to create a new form such as :

void X()
{
....
frm Form2 = new Form2();
frm.Show();

...

}

My form shows up but when the method X ends, my form is closed
automatically, even if I set the event in the Form2.Closing for
cancelling it, it is closed.
Got anyone any idea?

[Dmytro Lapshyn [MVP]]

Hi,

Declare the frm variable on the class level, not the method level. Make sure
that you dispose of the form when it's no longer needed.

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Ata ?smet ?z?elik" <at********@uekae.tubitak.gov.tr> wrote in message
news:58*************************@posting.google.co m...

Hi i am developing a Windows.Forms Application and I am using an
ActiveX dll built in C++.
I define a delegate for the eventhandler built in the DLL and using a
method that is bound to it. My main form is waiting for the event to
be occur. The problem is in the method that is bound to the delegate i
am trying to create a new form such as :

void X()
{
...
frm Form2 = new Form2();
frm.Show();

..

}

My form shows up but when the method X ends, my form is closed
automatically, even if I set the event in the Form2.Closing for
cancelling it, it is closed.
Got anyone any idea?

[Ata Ismet Ozcelik]

Well I wrote it wrong.
I already defined in the class level so my correct code is :

frm = new Form2();

And frm is defined in the class level.

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[Ata Ismet Ozcelik]

Any other ideas?

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