Visual Basic/VB, Loaded Form

Rolando C. Pallare
#1 / 5

Loaded Form

Hello.
Which is the simplest way of knowing if a given form is loaded (Im not
talking about whether is active or not) ??
Thanks

Rolando

Mon, 22 Jul 2002 03:00:00 GMT

Chase Saunder
#2 / 5

Loaded Form

If you are using at most one instance of each form, its fairly easy. Look
through the Forms collection, checking for the Name of the form you want to
test. For example

Public Function IsLoaded(ByVal sForm As String) As Boolean
Dim f as Form
IsLoaded = False 'guilty until proven innocent

For Each f in Forms
If f.Name = sForm Then
IsLoaded = True
Exit Sub
End If
Next f

End Function

Mon, 22 Jul 2002 03:00:00 GMT

Rolando C. Pallare
#3 / 5

Loaded Form

hello.
thanks for the help.
and, what about if I use several instances, i.e. I use Dim X as myForm
and
X = New myForm ???
thanks

Quote:

> If you are using at most one instance of each form, its fairly easy.
Look
> through the Forms collection, checking for the Name of the form you want
to
> test. For example

> Public Function IsLoaded(ByVal sForm As String) As Boolean
> Dim f as Form
> IsLoaded = False 'guilty until proven innocent

> For Each f in Forms
> If f.Name = sForm Then
> IsLoaded = True
> Exit Sub
> End If
> Next f

> End Function

Mon, 22 Jul 2002 03:00:00 GMT

MNI
#4 / 5

Loaded Form

Does that make a difference if you have loaded multiple instances. What you
wanted to know if a particular form is active or not and you get this by
navigating through the forms collection

Quote:

> hello.
> thanks for the help.
> and, what about if I use several instances, i.e. I use Dim X as myForm
> and
> X = New myForm ???
> thanks

> > If you are using at most one instance of each form, its fairly easy.
> Look
> > through the Forms collection, checking for the Name of the form you want
> to
> > test. For example

> > Public Function IsLoaded(ByVal sForm As String) As Boolean
> > Dim f as Form
> > IsLoaded = False 'guilty until proven innocent

> > For Each f in Forms
> > If f.Name = sForm Then
> > IsLoaded = True
> > Exit Sub
> > End If
> > Next f

> > End Function

Tue, 23 Jul 2002 03:00:00 GMT

Chase Saunder
#5 / 5

Loaded Form

Yes and no... you can determine if some instance of the specified form is
running using the technique I described. However, you cannot tell which
particular instance. The only really sucessful way to do this is to
maintain your own data structure with object references to the forms.

Tue, 23 Jul 2002 03:00:00 GMT