[MSDOS]

جرب هذه الطريقة

كود :

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    For i = 0 To ListBox1.Items.Count - 1
        ListBox1.Items(i) = ListBox1.Items(i).Replace("CBB", "")
        ListBox1.Items(i) = ListBox1.Items(i).Replace("CMO", "")
    Next
End Sub