Access Form Property with Instance VB.net

Question

In Windows Forms (Vb.net) how can I access the properties without instance (new) ?

Form1.Property = "" ??? the property deceleration is not static? what is called this way of deceleration?

While you can't access Class1.Property! Thanks

SLaks · Accepted Answer · 2012-05-15 13:16:30Z

4

VB.Net does some magic to allow you to pretend that forms don't have instances.

It creates a hidden shared instance, and converts static calls to instance methods (eg, Form1.Show()) into instance calls on this shared instance.

This is done for VB6 compatibility and should be avoided.

answered May 15, 2012 at 13:16

SLaks

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5 Comments

Sameh Over a year ago

so what if I access form1.prop ? how about the other instances ?

SLaks Over a year ago

@Sameh: That just calls the property on the hidden shared instance. It compiles to something like Form1.HiddenInstance.prop. It has nothing to do with nay instances that you create.

Sameh Over a year ago

Thanks Slaks, but can we implement it with our own classes ?

Steven Doggart Over a year ago

Essentially VB automatically creates a global instance of every form, whether you use it or not. If you wanted to do the same thing (though I would highly discourage it), you could create a global Class1 As New Class1 variable.

SLaks Over a year ago

@Sameh: No, and that's a good thing. This behavior is unexpected and extremely confusing, and that's a good thing. You may want to make a singleton.

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