like MDI parent form...

[Yin Lin]

how can I use main form like MDI parent form in window application?

[marcellus7]

Create a panel, and here's the code I use. Where childForm is the name of the instance of the form you want to display in the panel

 	 Panel1.Controls.Clear()
        childForm.FormBorderStyle = FormBorderStyle.None
        childForm.MaximizeBox = False
        childForm.MinimizeBox = False
        childForm.ControlBox = False
        Me.IsMdiContainer = True
        childForm.MdiParent = Me
        childForm.Dock = DockStyle.Fill
        childForm.Parent = Panel1
         childForm.Show()
        Panel1.Update()