TK-VBA2

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "A" And TextBox2.Text = "B" Then
            Label1.Text = "C"
        ElseIf TextBox1.Text = "D" And TextBox2.Text = "E" Then
            Label1.Text = "F"
        ElseIf TextBox1.Text = "G" And TextBox2.Text = "H" Then
            Label1.Text = "I"
        Else
            Label1.Text = "J"
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Application.Exit()
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        TextBox1.Clear()
        TextBox2.Clear()
        Label1.Text = ""
    End Sub

End Class