contoh program Cb.net sederhana

di bawah ini adalah cara gimana untuk membuat program seperti di atas!!
selamat mencoba..


Public Class Form2


    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        NPM.Items.Add("12110298")
        NPM.Items.Add("13111057")
        NPM.Items.Add("12111009")
        NPM.Items.Add("10111077")

        KodeDosen.Items.Add("982")
        KodeDosen.Items.Add("973")
        KodeDosen.Items.Add("957")
        KodeDosen.Items.Add("999")


        KodeMatakuliah.Items.Add("A23")
        KodeMatakuliah.Items.Add("A24")
        KodeMatakuliah.Items.Add("A25")
        KodeMatakuliah.Items.Add("A26")
        KodeMatakuliah.Items.Add("A27")
        KodeMatakuliah.Items.Add("A28")
        KodeMatakuliah.Items.Add("A29")


        Dim i As Byte
        For i = 1 To 100
            NilaiKehadiran.Items.Add(i)
            NilaiTugas.Items.Add(i)
            NilaiUTS.Items.Add(i)
            NilaiUAS.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, y As String
        x = Microsoft.VisualBasic.Left(NPM.Text, 3)
        y = Microsoft.VisualBasic.Right(NPM.Text, 3)

        Select Case NPM.Text
            Case "12110298"
                Nama.Text = "benny syahputra"
            Case "13111057"
                Nama.Text = "eko juliansyah"
            Case "12111009"
                Nama.Text = "Rio"
            Case "10111077"
                Nama.Text = "Jayen"
        End Select

        Select Case x
            Case "131"
                Jenjang.Text = "DII"
            Case "121"
                Jenjang.Text = "S1"
            Case "121"
                Jenjang.Text = "S1"
            Case "101"
                Jenjang.Text = "DIII"
            Case Else
                Jenjang.Text = "_"
        End Select

        Select Case y
            Case "298"
                Jurusan.Text = "Teknik Informatika"
            Case "057"
                Jurusan.Text = "Managemen informatika"
            Case "009"
                Jurusan.Text = "Sistem Informasi"
            Case "077"
                Jurusan.Text = "Manajemen informatika"
            Case Else
                Jurusan.Text = "_"
        End Select
    End Sub

    Private Sub KodeDosen_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KodeDosen.SelectedIndexChanged
        Select Case KodeDosen.Text
            Case "982"
                NamaDosen.Text = "M.Syahrizal, M.kom"
            Case "973"
                NamaDosen.Text = "Mesran S.Kom,M.Kom"
            Case "957"
                NamaDosen.Text = "Hotman S.kom"
            Case "999"
                NamaDosen.Text = "Yasir M.kom"
            Case Else
                NamaDosen.Text = "_"
        End Select
    End Sub

    Private Sub Btnproses_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Btnproses.Click
        NilaiAkhir.Text = 0.4 * NilaiUTS.Text + 0.6 * NilaiUAS.Text + 0.1 * NilaiKehadiran.Text + 0.15 * NilaiTugas.Text

        If NilaiAkhir.Text >= 80 Then
            NilaiHuruf.Text = "A"
        ElseIf NilaiAkhir.Text >= 70 Then
            NilaiHuruf.Text = "B"
        ElseIf NilaiAkhir.Text >= 60 Then
            NilaiHuruf.Text = "C"
        ElseIf NilaiAkhir.Text >= 50 Then
            NilaiHuruf.Text = "D"
        Else
            NilaiHuruf.Text = "E"
        End If

        If NilaiAkhir.Text >= 50 Then
            Keterangan.Text = "Lulus"
        Else
            Keterangan.Text = "Gagal"
        End If

        If Jenjang.Text = "1" Then
            Jenjang.Text = "Diploma 1"
        ElseIf Jenjang.Text = "3" Then
            Jenjang.Text = "Diploma 3"
        ElseIf Jenjang.Text = "4" Then
            Jenjang.Text = "Strata 1"
        End If

        If Jurusan.Text = "01" Then
            Jurusan.Text = "Manajemen Informatika"
        ElseIf Jurusan.Text = "02" Then
            Jurusan.Text = "Sistem Informatika"
        ElseIf Jurusan.Text = "03" Then
            Jurusan.Text = "Teknik komputer"
        ElseIf Jurusan.Text = "04" Then
            Jurusan.Text = "Akuntansi"
        End If
    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 = ""
        KodeDosen.Text = ""
        NamaDosen.Text = ""
        KodeMatakuliah.Text = ""
        NamaMatakuliah.Text = ""
        NilaiKehadiran.Text = ""
        NilaiTugas.Text = ""
        NilaiUTS.Text = ""
        NilaiUAS.Text = ""
        NilaiAkhir.Text = ""
        NilaiHuruf.Text = ""
        Keterangan.Text = ""
    End Sub
    Private Sub NilaiUAS_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles NilaiUAS.KeyPress
        Dim tombol As Integer = Asc(e.KeyChar)
        If tombol = 13 Then
            Btnproses_Click(sender, e)
        End If
    End Sub

    Private Sub KodeMatakuliah_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KodeMatakuliah.SelectedIndexChanged
        Select Case KodeMatakuliah.Text
            Case "A23"
                NamaMatakuliah.Text = "Sistem Basis data"
            Case "A24"
                NamaMatakuliah.Text = "matriks linier transformasi"
            Case "A25"
                NamaMatakuliah.Text = "Programan visual"
            Case "A26"
                NamaMatakuliah.Text = "Teknik Informatika"
            Case "A27"
                NamaMatakuliah.Text = "Managemen Sistem"
            Case "A28"
                NamaMatakuliah.Text = "teknik digital"
            Case "A29"
                NamaMatakuliah.Text = "visual basic"
            Case Else
                NamaMatakuliah.Text = "_"
        End Select
    End Sub

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

    Private Sub NilaiUAS_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NilaiUAS.SelectedIndexChanged

    End Sub
End Class


link pak mesran