How can i run a new form in a panel or usercontrol?

[luckilian]

Hi everyone, i need some help with a tabbed interface.

I have this scenario:
1 Main Form
1 UserControl
1 Form

when main form is loaded the Usercontrol load ..
In the _load handler i want to open then Form in separate thread


here is my _load handler for usercontrol:

 Dim t As Threading.Thread
    t = New Threading.Thread(AddressOf ShowForm2)
    t.Start()

here is the ShowForm2 function

Private Sub ShowForm2()
        Dim frmNew As New FORM
        frmNew.TopLevel = False
        Application.Run(frmNew)
        Me.Invoke(New AddTabCallback(AddressOf Addtab), frmNew)
    End Sub

and here is the code for adding a new form

Private Sub Addtab(ByRef tab As Form)
        Me.Controls.Add(tab)
        End Sub

this is the delegate declaration :

Public Delegate Sub AddTabCallback(ByRef tab As Form)

the problem is when i use Application.run(frmNew) , the form is created but is not visible on the usercontrol. Is visible on the threads area on visual studio

if i choose to remove the application.run(frmNew) and on sub addtab to add the folowing:

Private Sub Addtab(ByRef tab As Form)
        Me.Controls.Add(tab)
 tab.show()
        End Sub

in this way the form is visible on usercontrol but is created on the main thread and i don't want that to happen.
Is there a way to use application.run() or other solution to launch the form in a usercontrol?


Thanks alot