Di bawah ini adalah Form latihan IF jamak Yang
menggunakan CASE
Di bawah ini adalah Listing Program Form di
atas
Public Class Form1
    Private Sub TIPE_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles
TIPE.SelectedIndexChanged
        SERI.Items.Clear()
        Select Case TIPE.Text
            Case
"NOKIA"
                SERI.Items.Add("N70")
                SERI.Items.Add("N73")
            Case
"SAMSUNG"
                SERI.Items.Add("S111")
                SERI.Items.Add("GYOUNG")
            Case
"SIEMEN"
                SERI.Items.Add("C55")
                SERI.Items.Add("M55")
            Case
"MOTOROLLA"
                SERI.Items.Add("MX31")
                SERI.Items.Add("XM31")
        End Select
    End Sub
    Private Sub KONDISI_SelectedIndexChanged(ByVal sender As
System.Object, ByVal e As
System.EventArgs) Handles
KONDISI.SelectedIndexChanged
        HARGA.Text = 0
        Select Case KONDISI.Text
            Case
"BARU"
                Select
Case SERI.Text
                    Case
"N70" : HARGA.Text = 3000000
                    Case
"N73" : HARGA.Text = 3500000
                    Case
"S111" : HARGA.Text = 2000000
                    Case
"GYOUNG" : HARGA.Text = 1800000
                    Case
"C55" : HARGA.Text = 5000000
                    Case
"M55" : HARGA.Text = 4500000
                    Case
"MX31" : HARGA.Text = 3500000
                    Case
"XM31" : HARGA.Text = 7000000
                End Select
            Case
"SECOND"
                Select
Case SERI.Text
                    Case
"N70" : HARGA.Text = 2500000
                    Case
"N73" : HARGA.Text = 3000000
                    Case
"S111" : HARGA.Text = 1500000
                    Case
"GYOUNG" : HARGA.Text = 1200000
                    Case
"C55" : HARGA.Text = 4000000
                    Case
"M55" : HARGA.Text = 4300000
                    Case
"MX31" : HARGA.Text = 3100000
                    Case
"XM31" : HARGA.Text = 6000000
                End
Select
        End Select
    End Sub
    Private Sub Form1_Load(ByVal
sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
        TIPE.Items.Add("NOKIA")
        TIPE.Items.Add("SAMSUNG")
        TIPE.Items.Add("MOTOROLA")
        TIPE.Items.Add("SIEMEN")
        KONDISI.Items.Add("BARU")
        KONDISI.Items.Add("SECOND")
    End Sub
    Private Sub Button1_Click(ByVal
sender As System.Object, ByVal e As
System.EventArgs) Handles BTN_HAPUS.Click
        TIPE.Text = ""
        SERI.Text = ""
        KONDISI.Text = ""
        HARGA.Text = ""
        JUMLAH.Text = ""
        TOTAL.Text = ""
    End Sub
    Private Sub Button2_Click(ByVal
sender As System.Object, ByVal e As System.EventArgs)
Handles BTN_KELUAR.Click
        End
    End Sub
    Private Sub JUMLAH_KeyPress(ByVal
sender As Object,
ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles
JUMLAH.KeyPress
        If
e.KeyChar = Chr(13) Then
            TOTAL.Text = HARGA.Text *
JUMLAH.Text
        End If
    End Sub
End Class
CARA PROSESNYA
Untuk proses JUMLAH
*Jumlah di input sesuai yang kita inginkan, setelah
itu di ENTER 
Untuk proses Hapus
*Klik tombol HAPUS maka semua data akan hilang
TOMBOL
KELUAR
*Klik
Tombol KELUAR, Maka program akan kembali ke FORM







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