Checking if a form has been already open

[Dino M. Buljubasic]

I'd like to check if a form is already open before opening it and if it is
not, then open it, otherwise just make it the active form.

How can I do that?

Regards,
Dino

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[Tom Leylan]

"Dino M. Buljubasic" <di************ *@rivusglobal.c om> wrote...

I'd like to check if a form is already open before opening it and if it is
not, then open it, otherwise just make it the active form.

Hi Dino... not a problem but I'm curious if you scan down the properties for
a form in the help. By that I only mean it can be a quick way to get an
answer... and I always find something new in there I didn't know while I am
looking for something else.

How about the .Visible property?

Tom

[Armin Zingler]

"Dino M. Buljubasic" <di************ *@rivusglobal.c om> schrieb

I'd like to check if a form is already open before opening it and if
it is not, then open it, otherwise just make it the active form.

How can I do that?

Private m_OtherForm As Form1

Private Sub OpenForm1()
If m_OtherForm Is Nothing Then
m_OtherForm = New Form1
AddHandler m_OtherForm.Clo sed, AddressOf OnOtherFormClos ed
m_OtherForm.Sho w()
End If
m_OtherForm.Act ivate()
End Sub

Private Sub OnOtherFormClos ed( _
ByVal sender As Object, ByVal e As System.EventArg s)

RemoveHandler m_OtherForm.Clo sed, AddressOf OnOtherFormClos ed
m_OtherForm = Nothing
End Sub
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Armin

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[Fergus Cooney]

Hi Dino,

At the moment you have some of the code in classForms.vb and a lot more
scatterd around. - It should all be centralised in classForms.vb. It's one of
the things I wanted to show you before but didn't have time.

Rather than telling classForms that you have created a NewContactForm (by
setting the property), you should be <asking > classForms to create it for you
and pass it back. Then classForms can say - hold on, I've already got it here,
I'll just activate it for you.

When the form closes, it should tell classForms, otherwise classForms will
think it's still active.

Regards,
Fergus

[Dino M. Buljubasic]

Hi Fergus,

thanks for the reply. Yes, I know, that is my gray area. I am completelly
new to OOP!

I am doing something similar, but still not from the classForms. I'll do
some research on that. :)

Have you had any chance to look at the calendar? Any chance I get some help
on that annoying shifting in frmDailyCalenda r (the one when I want to type
something in daily calendar and click on a text box, and whole thing shifts
to the right? :) )

Regards,
Dino
PS. I shold be online again tomorrow, so I'll send you my home address as
well. What was your address?
PS. By the way, If you would like to get in touch with my boss, I'll send
you his email address once I get hooked up again.

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"Fergus Cooney" <fi****@post.co m> wrote in message
news:eK******** ******@TK2MSFTN GP11.phx.gbl...

Hi Dino,

At the moment you have some of the code in classForms.vb and a lot more scatterd around. - It should all be centralised in classForms.vb. It's one of the things I wanted to show you before but didn't have time.

Rather than telling classForms that you have created a NewContactForm (by setting the property), you should be <asking > classForms to create it for you and pass it back. Then classForms can say - hold on, I've already got it here, I'll just activate it for you.

When the form closes, it should tell classForms, otherwise classForms will think it's still active.

Regards,
Fergus