study kasus ( rumanda)

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Nama.Focus()

        Jabatan.Items.Add("Mandor")

        Jabatan.Items.Add("Kepala Bagian")

        Jabatan.Items.Add("Staf")

        Status.Items.Add("Menikah")

        Status.Items.Add("Belum Menikah")

        Call buattabel()

    End Sub

    Private Sub jabatan_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Jabatan.SelectedIndexChanged

        Select Case Jabatan.Text

            Case "Mandor"

                Gaji.Text = 1750000

                Pajak.Text = 0.015 * Val(Gaji.Text)

            Case "Staf"

                Gaji.Text = 1250000

                Pajak.Text = 0.015 * Val(Gaji.Text)

            Case "Kepala Bagian"

                Gaji.Text = 2500000

                Pajak.Text = 0.015 * Val(Gaji.Text)

        End Select

        Status.Focus()

    End Sub

    Private Sub status_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Status.SelectedIndexChanged

        Dim y As String

        y = Status.Text = "Menikah"

        If Jabatan.Text = "Mandor" Then

            Tunjangan.Text = 0.09 * 1750000

        ElseIf Jabatan.Text = "Staf" Then

            Tunjangan.Text = 0.09 * 1250000

        ElseIf Jabatan.Text = "Kepala Bagian" Then

            Tunjangan.Text = 0.09 * 2500000

        End If

        If Status.Text = "Belum Menikah" Then

            Tunjangan.Text = 0

        End If

        Jumlah.Focus()

    End Sub

    Private Sub jumlah_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Jumlah.TextChanged

        If Jumlah.Text = "1" Then

            Tunjangan_anak.Text = 0.03 * Val(Gaji.Text)

        ElseIf Jumlah.Text = "2" Then

            Tunjangan_anak.Text = 0.07 * Val(Gaji.Text)

        Else

            Tunjangan_anak.Text = 0.07 * Val(Gaji.Text)

        End If

    End Sub

    Private Sub jam_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Jam.TextChanged

        If Jabatan.Text = "Mandor" Then

            Upah.Text = 7500 * Val(Jam.Text)

        ElseIf Jabatan.Text = "Staf" Then

            Upah.Text = 5000 * Val(Jam.Text)

        ElseIf Jabatan.Text = "Kepala Bagian" Then

            Upah.Text = 10000 * Val(Jam.Text)

        End If

    End Sub

    Private Sub btnhitung_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Btnhitung.Click

        Total.Text = Val(Gaji.Text) + Val(Tunjangan.Text) + Val(Tunjangan_anak.Text) + Val(Upah.Text) - Val(Pajak.Text)

    End Sub

    Sub buattabel()

        LV.Columns.Add("Nama", 100, HorizontalAlignment.Center)

        LV.Columns.Add("Jabatan", 100, HorizontalAlignment.Center)

        LV.Columns.Add("Status", 100, HorizontalAlignment.Center)

        LV.Columns.Add("Gaji Pokok", 100, HorizontalAlignment.Right)

        LV.Columns.Add("Tunjangan Istri", 120, HorizontalAlignment.Right)

        LV.Columns.Add("Jumlah Anak", 100, HorizontalAlignment.Center)

        LV.Columns.Add("Tunjangan anak", 120, HorizontalAlignment.Right)

        LV.Columns.Add("Pajak", 100, HorizontalAlignment.Right)

        LV.Columns.Add("Jam Lembur", 100, HorizontalAlignment.Center)

        LV.Columns.Add("Upah Lembur", 100, HorizontalAlignment.Right)

        LV.Columns.Add("Total Gaji", 100, HorizontalAlignment.Center)

        LV.View = View.Details

        LV.FullRowSelect = True

        LV.GridLines = True

    End Sub

    Sub isitabel()

        Dim lst As New ListViewItem

        lst.Text = nama.Text

        lst.SubItems.Add(Jabatan.Text)

        lst.SubItems.Add(Status.Text)

        lst.SubItems.Add(Gaji.Text)

        lst.SubItems.Add(Tunjangan.Text)

        lst.SubItems.Add(Jumlah.Text)

        lst.SubItems.Add(Tunjangan_anak.Text)

        lst.SubItems.Add(pajak.Text)

        lst.SubItems.Add(jam.Text)

        lst.SubItems.Add(Upah.Text)

        lst.SubItems.Add(Total.Text)