Contoh Program Pencarian Nilai Huruf dan Pemakaian Fungsi Mid, Right dalam VB.Net

Masukkan NPM (13111000,13111011,13112011)
Masukkan Kode Dosen (kd001,kd002,kd003)
Masukkan Kode Matakuliah (mk001,mk002,mk003)

Ketentuan :
1 digit dari sebelah kanan NPM menentukan jenjang yaitu S1,D3,D1
4 digit dari sebelah kanan NPM dan dari 4 digit tsb diambil 2 karakter untuk menentukan jurusan
2 digit dari sebelah kanan Kode Dosen menentukan Nama Dosen
2 digit dari sebelah kanan Kode Matakuliah menentukan Nama Matakuliah    

ini coding programnya:

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Npm.Items.Add("13111000")
        Npm.Items.Add("13111011")
        Npm.Items.Add("13112011")

        kd_dosen.Items.Add("kd001")
        kd_dosen.Items.Add("kd002")
        kd_dosen.Items.Add("kd003")

        Kd_mkul.Items.Add("mk001")
        Kd_mkul.Items.Add("mk002")
        Kd_mkul.Items.Add("mk003")


        Dim i As Integer
        For i = 100 To 1 Step -10
            Nlai_kehadiran.Items.Add(i)
            Ntugas.Items.Add(i)
            N_uts.Items.Add(i)
            N_uas.Items.Add(i)

        Next

    End Sub

    Private Sub Npm_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Npm.SelectedIndexChanged

        Dim x As String
        x = Microsoft.VisualBasic.Right(Npm.Text, 1)
        If x = "0" Then
            jenjang.Text = "S1"
        ElseIf x = "1" Then
            jenjang.Text = "D3"
        Else
            jenjang.Text = "D1"
        End If

        x = Microsoft.VisualBasic.Mid(Npm.Text, 4, 2)
        If x = "11" Then
            jurusan.Text = "Teknik Informatika"
        ElseIf x = "11" Then
            jurusan.Text = "Sistem Informasi"
        ElseIf x = "12" Then
            jurusan.Text = "Manajemen"
        Else
            jurusan.Text = "-"
        End If
        Select Case Npm.Text
            Case "13111000"
                Nama.Text = "deni M"
            Case "13111011"
                Nama.Text = "Indra S"
            Case "13112011"
                Nama.Text = "Agus H"
            Case Else
                Nama.Text = "-"

        End Select
    End Sub

    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click

        Npm.Text = ""
        Nama.Text = ""
        jenjang.Text = ""
        jurusan.Text = ""
        kd_dosen.Text = ""
        Nm_dosen.Text = ""
        Kd_mkul.Text = ""
        Nm_mkul.Text = ""
        Nlai_kehadiran.Text = ""
        Ntugas.Text = ""
        N_uts.Text = ""
        N_uas.Text = ""
        Nakhir.Text = ""
        N_hruf.Text = ""
        keterangan.Text = ""
    End Sub

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click
        End
    End Sub

    Private Sub btnproses_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnproses.Click

        Nakhir.Text = 0.1 * Nlai_kehadiran.Text + 0.15 * Ntugas.Text + 0.3 * N_uts.Text + 0.45 * N_uas.Text

      
        If Nakhir.Text >= 60 Then
            keterangan.Text = "LULUS"
        Else
            keterangan.Text = "GAGAL"
        End If
        Select Case Nakhir.Text
            Case Is >= 80
                N_hruf.Text = "A"
            Case 70 To 79
                N_hruf.Text = "B"
            Case 60 To 69
                N_hruf.Text = "C"
            Case 50 To 59
                N_hruf.Text = "D"
            Case Is <= 49
                N_hruf.Text = "E"
        End Select
      
    End Sub

    Private Sub Kd_mkul_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Kd_mkul.SelectedIndexChanged

        Dim y As String
        y = Microsoft.VisualBasic.Right(Kd_mkul.Text, 2)
        If y = "01" Then
            Nm_mkul.Text = "Pemograman Visual"
        ElseIf y = "02" Then
            Nm_mkul.Text = "Arsitektur Informasi"
        ElseIf y = "03" Then
            Nm_mkul.Text = "Sistem informasi"
        End If
    End Sub

    Private Sub kd_dosen_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles kd_dosen.SelectedIndexChanged

        Dim z As String
        z = Microsoft.VisualBasic.Right(kd_dosen.Text, 2)
        If z = "01" Then
            Nm_dosen.Text = "Mesran S.Kom, M.Kom"
        ElseIf z = "02" Then
            Nm_dosen.Text = "Sony Bahagia S.Kom"
        ElseIf z = "03" Then
            Nm_dosen.Text = "Sinar Sinurat S.Kom, M.Kom"
        End If

    End Sub
End Class

hasil programnya:



Sumber : Materi Pak Mesran, S.Kom, M.Kom.