Soal Quis no. 2 Modul Hal 33

http://mesran.wordpress.com/2012/01/26/soal-quiz-online-hari-selasa-2/

Design awal

Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        kodebarang.Items.Add("TS001")
        kodebarang.Items.Add("TS002")
        kodebarang.Items.Add("VG001")
        kodebarang.Items.Add("VG002")
        buattabel()
    End Sub

    Private Sub kodebarang_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles kodebarang.SelectedIndexChanged
        Dim x As String
        x = Microsoft.VisualBasic.Left(kodebarang.Text, 2)
        If x = "TS" Then
            merk.Text = "Toshiba"
        ElseIf x = "VG" Then
            merk.Text = "V-Gen"
        End If
        x = Microsoft.VisualBasic.Right(kodebarang.Text, 3)
        If x = "001" Then
            namabarang.Text = "Flashdisk 4GB"
        ElseIf x = "002" Then
            namabarang.Text = "Flashdisk 2GB"
        End If
        If kodebarang.Text = "TS001" Then
            harga.Text = "105000"
        ElseIf kodebarang.Text = "TS002" Then
            harga.Text = "75000"
        ElseIf kodebarang.Text = "VG001" Then
            harga.Text = "90000"
        ElseIf kodebarang.Text = "VG002" Then
            harga.Text = "60000"
        End If
    End Sub

    Private Sub jumlahbeli_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles jumlahbeli.KeyPress
        Dim tombol As Integer = Asc(e.KeyChar)
        If tombol = 13 Then
            btnproses_Click(sender, e)
        End If
    End Sub

    Private Sub btnproses_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnproses.Click
        totalharga.Text = Val(jumlahbeli.Text) * Val(harga.Text)
    End Sub
    Sub buattabel()
        With LV
            .Columns.Add("Nomor Pembelian", 100, HorizontalAlignment.Center)
            .Columns.Add("Kode Barang", 100, HorizontalAlignment.Left)
            .Columns.Add("Nama Barang", 100, HorizontalAlignment.Left)
            .Columns.Add("Merk", 110, HorizontalAlignment.Left)
            .Columns.Add("Harga", 110, HorizontalAlignment.Left)
            .Columns.Add("Jumlah Beli", 110, HorizontalAlignment.Left)
            .Columns.Add("Total Harga", 120, HorizontalAlignment.Center)
            .View = View.Details
            .GridLines = True
            .FullRowSelect = True
        End With
    End Sub

    Sub isitabel()
        Dim lst As New ListViewItem
        lst.Text = nopembelian.Text
        lst.SubItems.Add(kodebarang.Text)
        lst.SubItems.Add(namabarang.Text)
        lst.SubItems.Add(merk.Text)
        lst.SubItems.Add(harga.Text)
        lst.SubItems.Add(jumlahbeli.Text)
        lst.SubItems.Add(totalharga.Text)
        LV.Items.Add(lst)
    End Sub
    Sub clean()
        nopembelian.Text = ""
        kodebarang.Text = ""
        namabarang.Text = ""
        merk.Text = ""
        harga.Text = ""
        jumlahbeli.Text = ""
        totalharga.Text = ""
    End Sub

    Private Sub btnbersih_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbersih.Click
        Call clean()
    End Sub

    Private Sub btnhapusdatayangdipilih_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapusdatayangdipilih.Click
        If LV.SelectedItems.Count <> 0 Then
            LV.Items.Remove(LV.SelectedItems(0))
        Else
            MsgBox("PILIH DATA YANG INGIN DIHAPUS !")
        End If
    End Sub

    Private Sub btnsimpankelistview_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsimpankelistview.Click
        Call isitabel()
        Call buattabel()
        Call clean()
    End Sub

    Private Sub btnhapussemuadata_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapussemuadata.Click
        LV.Items.Clear()
    End Sub

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

Hasil tampilan