[Dany]

Mi linci se ti dico che non funziona ti riporto

Codice:

Public Class Form1
    Dim sottoform1 As New Form2
    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim sottoform1 As New Form2
        sottoform1.MdiParent = Me
        sottoform1.Show()
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        sottoform1.Close()
    End Sub
End Class

edit by steve: per renderlo leggibile mettici

Codice:

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oppure

Codice:

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