Membuat Aplikasi Penjualan Buku Sederhan (1)

Membuat Aplikasi Penjualan Buku Sederhana

Langkah-langkah dalam membuat aplikasi adalah sebagai berikut :

1.

Buat project baru dengan nama

Aplikasi Penjualan

lalu simpan pada Local Disc di PC atau Laptop

Anda.

2.

Buatlah database dengan nama

JualBuku.accdb

lalu simpan kedalam folder

Aplikasi Penjualan

>

bin

>

debug

kemudian rancanglah struktur tabel seperti berikut ini :

Nama Tabel :

Jenis

Field

Type

Size

Keterangan

KodeJenis

Text

2

Primary Key (PK)

Jenis

Text

50

Nama Tabel :

Buku

Field

Type

Size

Keterangan

KodeBuku

Text

3

Primary Key (PK)

KodeJenis

Text

2

Foreign Key (FK)

Judul

Text

100

Pengarang

Text

50

Penerbit

Text

50

Jumlah

Number

Harga

Number

Deskripsi

Text

200

Nama Tabel :

Transaksi

Field

Type

Size

Keterangan

NoFaktur

Text

11

Primary Key (PK)

TglFaktur

Date/Time

Pukul

Date/Time

NamaPembeli

Text

50

NoTelp

Text

12

Total

Number

Dibayar

Number

Kembali

Number

Item

Number

Nama Tabel :

DetailTransaksi

Field

Type

Size

Keterangan

NoFaktur

Text

11

KodeBuku

Text

3

Judul

Text

150

Jumlah

Number

HargaJual

Number

Entity Relationship Diagram (ERD) Aplikasi Penjualan Buku Komputer

Gambar 1. Rancangan ERD

Rancanglah Form Menu, Form Jenis Buku, dan Form Data Buku, Form Transaksi Penjualan Buku

seperti gambar berikut :

Gambar 2. Menu Aplikasi Penjualan Buku Komputer

Tulislah koding menunya sebagai berikut :

Public Class Form1

Private Sub DataJenisBukuToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles DataJenisBukuToolStripMenuItem.Click Form2.Show()

MenuStrip1

StatusStrip1

GroupBox1

Private Sub DataBukuToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles DataBukuToolStripMenuItem.Click Form3.Show()

End Sub

Private Sub KeluarToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles KeluarToolStripMenuItem.Click

If MessageBox.Show("Yakin akan menutup aplikasi ini..?", "", MessageBoxButtons.YesNo) = Windows.Forms.DialogResult.Yes Then

End

End If

End Sub End Class

Gambar 3. Rancangan Form Data Jenis Buku

TextBox3

TextBox1

TextBox2

Button1

Button2

Button3

Button4

Gambar 4. Rancangan Form Data Buku

Gambar 5. Rancangan Form Transaksi Penjualan Buku

DataGridView1

TextBox2

TextBox3

TextBox4

TextBox5

TextBox8

TextBox7

TextBox9

Button5

Button4

Button3

Button2

Button1

ComboBox1

TextBox6

TextBox1

TextBox1

TextBox2

TextBox3

TextBox4

TextBox5

Button1

Button2

Button3

TextBox6

Label10

TextBox7

TextBox8

TextBox9

DataGridView1

Tambahkan sebuah module kemudian tulislah koding dibawah ini :

Imports System.Data.OleDb

Module Module1

Public Conn As OleDbConnection Public da As OleDbDataAdapter Public ds As DataSet

Public cmd As OleDbCommand Public rd As OleDbDataReader Public Str As String

Public Sub Koneksi()

Str = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & Application.StartupPath &

"\JualBuku.accdb"

Conn = New OleDbConnection(Str)

If Conn.State = ConnectionState.Closed Then

Conn.Open() End If

End Sub End Module

Hasil Form2 (Jenis Buku) setelah dijalankan

Gambar 6. Hasil Form2 (Jenis Buku)

Kodingnya sebagai berikut :

Imports System.Data.OleDb

Public Class Form2 Sub Kosong()

TextBox1.Clear() TextBox2.Clear() TextBox1.Focus() End Sub

Sub Isi()

TextBox2.Clear() TextBox2.Focus() End Sub

DataGridView1.Columns(0).HeaderText = "KODE JENIS"

DataGridView1.Columns(1).HeaderText = "NAMA JENIS"

End Sub

Private Sub DataGridView1_CellContentClick(ByVal sender As Object, ByVal e As

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) TextBox3.Text & "%'", Conn)

ds = New DataSet da.Fill(ds, "Dapat")

DataGridView1.ReadOnly = True

Else

MsgBox("Data tidak ditemukan") End If

End Sub End Class

Hasil Form3 (Data Buku) setelah dijalankan

Gambar 7. Hasil Form3 (Data Buku)

Kodingnya sebagai berikut :

Imports System.Data.OleDb

Public Class Form3 Sub Kosong()

TextBox1.Clear() ComboBox1.Text = ""

TextBox2.Clear() TextBox3.Clear() TextBox4.Clear() TextBox5.Clear() TextBox6.Clear() TextBox7.Clear() TextBox8.Clear() TextBox1.Focus() End Sub

Sub Isi()

ComboBox1.Text = ""

Sub TampilBuku()

DataGridView1.Columns(0).HeaderText = "KODE BARANG"

DataGridView1.Columns(1).HeaderText = "KODE JENIS"

DataGridView1.Columns(2).HeaderText = "JUDUL"

DataGridView1.Columns(3).HeaderText = "PENGARANG"

DataGridView1.Columns(4).HeaderText = "PENERBIT"

DataGridView1.Columns(5).HeaderText = "JUMLAH"

DataGridView1.Columns(6).HeaderText = "HARGA"

DataGridView1.Columns(7).HeaderText = "DESKRIPSI"

Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As

Private Sub DataGridView1_CellContentClick(ByVal sender As Object, ByVal e As

System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick

& TextBox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "','" & TextBox6.Text &

"','" & TextBox7.Text & "')"

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As

Private Sub TextBox5_KeyPress(ByVal sender As Object, ByVal e As

System.Windows.Forms.KeyPressEventArgs) Handles TextBox5.KeyPress If e.KeyChar = Chr(13) Then TextBox6.Focus()

End Sub

Private Sub TextBox6_KeyPress(ByVal sender As Object, ByVal e As

System.Windows.Forms.KeyPressEventArgs) Handles TextBox6.KeyPress If e.KeyChar = Chr(13) Then

TextBox6.Text = UCase(TextBox6.Text) TextBox7.Focus()

End If

End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

Handles Button5.Click Me.Close() End Sub

Private Sub TextBox9_TextChanged(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles TextBox9.TextChanged

cmd = New OleDbCommand("Select * From Buku where Judul like '%" & TextBox9.Text &

"%'", Conn)

rd = cmd.ExecuteReader rd.Read()

If rd.HasRows Then

da = New OleDbDataAdapter("Select * From Buku where Judul like '%" & TextBox9.Text & "%'", Conn)

ds = New DataSet da.Fill(ds, "Dapat")

DataGridView1.DataSource = ds.Tables("Dapat") DataGridView1.ReadOnly = True

Else

MsgBox("Data tidak ditemukan") End If

End Sub

Private Sub TextBox7_KeyPress(ByVal sender As Object, ByVal e As

System.Windows.Forms.KeyPressEventArgs) Handles TextBox7.KeyPress TextBox6.MaxLength = 225

If e.KeyChar = Chr(13) Then

TextBox7.Text = UCase(TextBox7.Text) Button1.Focus()

End If

End Sub

Hasil Form4 (Transaksi Penjualan Buku Komputer) setelah dijalankan

Gambar 8. Hasil Form4 (Transaksi Penjualan)

Kodingnya sebagai berikut :

Imports System.Data.OleDb

Public Class Form4

Sub Kosong()

TextBox4.Clear() TextBox5.Clear() TextBox6.Clear() TextBox7.Clear() TextBox8.Clear() TextBox4.Focus() End Sub

Sub TidakAktif()

TextBox1.Enabled = False

TextBox2.Enabled = False

TextBox3.Enabled = False

End Sub

Sub KolomBaru()

DataGridView1.Columns.Add("Kode", "KODE BUKU") DataGridView1.Columns.Add("Nama", "NAMA BUKU") DataGridView1.Columns.Add("Harga", "HARGA") DataGridView1.Columns.Add("Jumlah", "QTY") DataGridView1.Columns.Add("Total", "SUB TOTAL") Call LebarKolom()

End Sub

Sub LebarKolom()

Private Sub Otomatis()

cmd = New OleDbCommand("Select * from Transaksi where NoFaktur in (select max(NoFaktur) from Transaksi) order by NoFaktur desc", Conn)

Dim urutan As String

HitungHarga = HitungHarga + Val(DataGridView1.Rows(I).Cells(4).Value) TextBox6.Text = HitungHarga

DataGridView1.CurrentCell = DataGridView1.Rows(0).Cells(3) End If

Private Sub DataGridView1_KeyPress(ByVal sender As Object, ByVal e As

System.Windows.Forms.KeyPressEventArgs) On Error Resume Next

If e.KeyChar = Chr(27) Then

DataGridView1.Rows.RemoveAt(DataGridView1.CurrentCell.RowIndex) Call TotalItem()

Call TotalHarga() TextBox7.Clear() TextBox8.Text = ""

End If

End Sub

Private Sub TextBox7_KeyPress(ByVal sender As Object, ByVal e As

System.Windows.Forms.KeyPressEventArgs) Handles TextBox7.KeyPress If e.KeyChar = Chr(13) Then

If Val(TextBox7.Text) < Val(TextBox6.Text) Then

MsgBox("Pembayaran kurang") TextBox8.Text = ""

TextBox7.Focus() Exit Sub

ElseIf Val(TextBox7.Text) = Val(TextBox6.Text) Then

TextBox8.Text = 0 Button2.Focus() Else

TextBox8.Text = Val(TextBox7.Text) - Val(TextBox6.Text) Button2.Focus()

End If

End If

If Not ((e.KeyChar >= "0" And e.KeyChar <= "9") Or e.KeyChar = vbBack) Then

e.Handled() = True

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

Handles Button2.Click Call Kosong()

DataGridView1.Columns.Clear() Call KolomBaru()

DataGridView1.Focus() End Sub

Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As

System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) If e.Control.GetType.ToString() =

"System.Windows.Forms.DataGridViewTextBoxEditingControl" Then

Dim c As DataGridViewTextBoxEditingControl = CType(e.Control, DataGridViewTextBoxEditingControl)

RemoveHandler c.KeyPress, AddressOf GridViewTextBox_KeyPress AddHandler c.KeyPress, AddressOf GridViewTextBox_KeyPress End If

End Sub

Private Sub GridViewTextBox_KeyPress(ByVal sender As Object, ByVal ex As

KeyPressEventArgs)

If DataGridView1.CurrentCell.ColumnIndex = 3 Then

If ((Asc(ex.KeyChar) < 48 Or Asc(ex.KeyChar) > 57) And Asc(ex.KeyChar) <> 8) Then

ex.Handled = True

End If

End If

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles

Button1.Click

If TextBox1.Text = "" Or TextBox2.Text = "" Or TextBox3.Text = "" Or TextBox4.Text =

"" Or TextBox5.Text = "" Or TextBox6.Text = "" Or TextBox7.Text = "" Or TextBox8.Text = ""

Then

MsgBox("Data belum lengkap, tidak ada transaksi atau pembayaran masih kosong") Exit Sub

End If

'Simpan ke tabel Transaksi

Dim SimpanTransaksi As String = "Insert into

Transaksi(NoFaktur,TglFaktur,Pukul,NamaPembeli,NoTelp,Total,Dibayar,Kembali,Item) values " & _ "('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" &

TextBox4.Text & "','" & TextBox5.Text & "','" & TextBox6.Text & "','" & TextBox7.Text & "','"

& TextBox8.Text & "','" & TextBox9.Text & "')"

cmd = New OleDbCommand(SimpanTransaksi, Conn) cmd.ExecuteNonQuery()

For baris As Integer = 0 To DataGridView1.Rows.Count - 2 'Simpan ke tabel DetailTransaksi

Dim SimpanDetailTransaksi As String = "Insert into DetailTransaksi (NoFaktur,KodeBuku,Judul,HargaJual,Jumlah,SubTotal) values " & _

"('" & TextBox1.Text & "','" & DataGridView1.Rows(baris).Cells(0).Value & "','" & DataGridView1.Rows(baris).Cells(1).Value & "','" & DataGridView1.Rows(baris).Cells(2).Value &

"','" & DataGridView1.Rows(baris).Cells(3).Value & "','" & DataGridView1.Rows(baris).Cells(4).Value & "')"

cmd = New OleDbCommand(SimpanDetailTransaksi, Conn) cmd.ExecuteNonQuery()

'Kurangi stok Buku

cmd = New OleDbCommand("select * from Buku where KodeBuku='" & DataGridView1.Rows(baris).Cells(0).Value & "'", Conn)

rd = cmd.ExecuteReader rd.Read()

If rd.HasRows Then

Dim KurangiStok As String = "update Buku set JumlahBuku= '" & rd.Item(5) - DataGridView1.Rows(baris).Cells(3).Value & "' where KodeBuku='" &

DataGridView1.Rows(baris).Cells(0).Value & "'"

cmd = New OleDbCommand(KurangiStok, Conn) cmd.ExecuteNonQuery()

End If

Next baris

DataGridView1.Columns.Clear() Call KolomBaru()

Call Otomatis() Call Kosong() End Sub

Sub kena(ByVal myGrid As DataGrid)

myGrid.CurrentCell = New DataGridCell(1, 1) End Sub

Private Sub DataGridView1_CellEndEdit1(ByVal sender As Object, ByVal e As

System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEndEdit If e.ColumnIndex = 0 Then

cmd = New OleDbCommand("select * from Buku where KodeBuku='" & DataGridView1.Rows(e.RowIndex).Cells(0).Value & "'", Conn)

rd = cmd.ExecuteReader DataGridView1.Rows(e.RowIndex).Cells(0).Value & "'", Conn)

rd = cmd.ExecuteReader