VB.NET 開啟視窗(母子視窗) [MdiParent]

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 'Dim ob As New Form1 'ob.MdiParent = Me 'ob.Show() Form1.MdiParent = Me Form1.Show() End Sub