Visual Lanjutan PRAKTEK 2 Kasus 6(PERCABANGAN IF)

Public Class kasus6
    'RAFIF KARUNIA RAHMAN 2017230174
    Dim hadir, tugas, uts, uas, akhir As Integer
    Dim grade, keterangan As String
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Application.Exit()
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""
        TextBox5.Text = ""
        TextBox6.Text = ""
        TextBox7.Text = ""
        TextBox8.Text = ""
        ComboBox1.Text = ""
    End Sub
    Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox2.Focus()
        End If
    End Sub
    Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress
        Dim keyascii As Short = Asc(e.KeyChar)
        If (e.KeyChar Like "[A-Z,a-z]" _
            OrElse keyascii = Keys.Back _
            OrElse keyascii = Keys.Space _
            OrElse keyascii = Keys.Return _
            OrElse keyascii = Keys.Delete _
            ) Then
            keyascii = 0
        End If
        If (e.KeyChar = Chr(13)) Then
            TextBox3.Focus()
        End If
        e.Handled = CBool(keyascii)
    End Sub
    'nadiahtami2017230007
    Private Sub TextBox3_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox3.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox4.Focus()
        End If
    End Sub
    Private Sub TextBox4_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox4.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox5.Focus()
        End If
    End Sub
    Private Sub TextBox5_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox5.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            TextBox6.Focus()
        End If
    End Sub
    Private Sub TextBox6_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox6.KeyPress
        If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then e.Handled = True 'hanya bisa menginput angka
        If (e.KeyChar = Chr(13)) Then
            uas = TextBox6.Text
            uts = TextBox5.Text
            tugas = TextBox4.Text
            hadir = TextBox3.Text
            TextBox7.Text = (hadir * (20 / 100)) + (tugas * (25 / 100)) + (uts * (25 / 100)) + (uas * (30 / 100))
            TextBox7.Focus()
        End If
    End Sub
    Private Sub TextBox7_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox7.KeyPress
        akhir = TextBox7.Text
        grade = IIf(akhir >= 86 And akhir <= 100, "A", IIf(akhir >= 74 And akhir <= 85, "B",
            IIf(akhir >= 60 And akhir <= 73, "C", IIf(akhir >= 46 And akhir <= 59, "D", "E"))))
        TextBox8.Text = grade
        If (e.KeyChar = Chr(13)) Then
            TextBox8.Focus()
        End If
    End Sub

    Private Sub kasus6_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class