Private Sub CommandButton1_Click()
If TextBox13 = "" or TextBox2 = "" or TextBox3 = "" or TextBox4 = "" or
TextBox5 = "" or TextBox6 = "" or TextBox7 = "" or TextBox8 = "" or
TextBox9 = "" or TextBox10 = "" or TextBox11 = "" or TextBox12 = "" Then
MsgBox ("Bitte einen Wert eingeben")
Exit Sub
End If
Was genau ist hier falsch?
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