Add in and regular windows form

Question

Hi all

when I open a windows form from a button loaced in the toolbar how can I hide the form if the button gets clicked again?

I tried that but it does not work, it opens new windwos forms.Protected Overrides Sub OnClick()
        Dim myForm As frmWindowsForm

If myForm Is Nothing Then
            myForm = New frmWindowsForm

End If

If myForm.Visible Then
            myForm.Hide()
        Else
            myForm.Show()

End If

myForm = Nothing

End Sub

JoseSanchez · Answer

It worked thanks!

JeffreyHamblin · Answer

You need to move your form reference outside of OnClick, and not set it to Nothing:
Dim myForm As frmWindowsForm

[in class constructor, set this]
myForm = Nothing

Protected Overrides Sub OnClick()

If myForm Is Nothing Then
            myForm = New frmWindowsForm
        End If

If myForm.Visible Then
            myForm.Hide()
        Else
            myForm.Show()
        End If
End Sub