Contoh Program Perpustakaan

( PROGRAM PERPUSTAKAAN )


I. Login
Form Login digunakan untuk masuk kedalam aplikasi dengan menginputkan username pada text box kemudian menekan enter lalu memasukan password, jika validasi sesuai maka akan masuk ke dalam sistem.

Public Class LoginForm1

Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
If UsernameTextBox.Text = "robby" And PasswordTextBox.Text = "ganteng" Then
MDIParent1.Show()
Me.Visible = False
Else
MsgBox("login gagal,coba ulangi lagi")
End If

End Sub



Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
Me.Close()
End Sub

End Class


II. Form Menu Utama
Form menu utama untuk masuk kedalam sub menu – sub menu yang ada, dengan meng_klik sub menu yang diinginkan maka akan di tampilkan form sesuai dengan sub menu yang di pilih.

Imports System.Windows.Forms

Public Class MDIParent1

Private Sub ShowNewForm(ByVal sender As Object, ByVal e As EventArgs) Handles NewToolStripMenuItem.Click, NewWindowToolStripMenuItem.Click
' Create a new instance of the child form.
Dim ChildForm As New System.Windows.Forms.Form
' Make it a child of this MDI form before showing it.
ChildForm.MdiParent = Me

m_ChildFormNumber += 1
ChildForm.Text = "Window " & m_ChildFormNumber

ChildForm.Show()
End Sub

Private Sub OpenFile(ByVal sender As Object, ByVal e As EventArgs) Handles OpenToolStripMenuItem.Click
Dim OpenFileDialog As New OpenFileDialog
OpenFileDialog.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.MyDocuments
OpenFileDialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*"
If (OpenFileDialog.ShowDialog(Me) = System.Windows.Forms.DialogResult.OK) Then
Dim FileName As String = OpenFileDialog.FileName
' TODO: Add code here to open the file.
End If
End Sub

Private Sub SaveAsToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles SaveAsToolStripMenuItem.Click
Dim SaveFileDialog As New SaveFileDialog
SaveFileDialog.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.MyDocuments
SaveFileDialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*"

If (SaveFileDialog.ShowDialog(Me) = System.Windows.Forms.DialogResult.OK) Then
Dim FileName As String = SaveFileDialog.FileName
' TODO: Add code here to save the current contents of the form to a file.
End If
End Sub


Private Sub ExitToolsStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles ExitToolStripMenuItem.Click
Me.Close()
End Sub

Private Sub CutToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CutToolStripMenuItem.Click
' Use My.Computer.Clipboard to insert the selected text or images into the clipboard
End Sub

Private Sub CopyToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CopyToolStripMenuItem.Click
' Use My.Computer.Clipboard to insert the selected text or images into the clipboard
End Sub

Private Sub PasteToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles PasteToolStripMenuItem.Click
'Use My.Computer.Clipboard.GetText() or My.Computer.Clipboard.GetData to retrieve information from the clipboard.
End Sub

Private Sub ToolBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles ToolBarToolStripMenuItem.Click

End Sub

Private Sub StatusBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles StatusBarToolStripMenuItem.Click
Me.StatusStrip.Visible = Me.StatusBarToolStripMenuItem.Checked
End Sub

Private Sub CascadeToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CascadeToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.Cascade)
End Sub

Private Sub TileVerticalToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles TileVerticalToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.TileVertical)
End Sub

Private Sub TileHorizontalToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles TileHorizontalToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.TileHorizontal)
End Sub

Private Sub ArrangeIconsToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles ArrangeIconsToolStripMenuItem.Click
Me.LayoutMdi(MdiLayout.ArrangeIcons)
End Sub

Private Sub CloseAllToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles CloseAllToolStripMenuItem.Click
' Close all child forms of the parent.
For Each ChildForm As Form In Me.MdiChildren
ChildForm.Close()
Next
End Sub

Private m_ChildFormNumber As Integer

Private Sub DataMahasiswaToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataMahasiswaToolStripMenuItem.Click
Form4.Show()

End Sub

Private Sub DataBukuPerpustakaanToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataBukuPerpustakaanToolStripMenuItem.Click
Form3.Show()
End Sub

Private Sub FormTransaksiPeminjamanToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FormTransaksiPeminjamanToolStripMenuItem.Click
Data_Transaksi_Peminjaman.Show()
End Sub
End Class






III. Form Data Anggota
Form data anggota digunakan untuk mengiinput,mengedit dan menghapus data anggota perpustakaan dengan menggunakan tombol – tombol yang ada seperti tambah,ubah, hapus.

Public Class Form4

Sub kosong()
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
TextBox5.Text = ""
TextBox6.Text = ""
TextBox7.Text = ""
TextBox1.Focus()
End Sub
Sub netral()
Button1.Text = "Tambah"
Button2.Text = "Ubah"
Button3.Text = "Hapus"
Button4.Text = "Keluar"
Button1.Enabled = True 'enable=funsi aktif/tdaknya sebuah objek
Button2.Enabled = True
Button3.Enabled = True
Button4.Enabled = True
End Sub
Sub celrecord()
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = "select * from datamhs where noagt='" & Trim(TextBox1.Text) & "'"
tampilkan = tampil2.ExecuteReader
If tampilkan.HasRows = True Then ''ada atau tidak recod yg dimaksukkan
hasilcek = True
Else
hasilcek = False
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Call simpankelompok()
End Sub
Sub simpankelompok()
If Button1.Text = "Tambah" Then
TextBox1.Text = ""
Button1.Text = "Simpan"
Button2.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
If TextBox7.Text = "" Then Exit Sub
Call celrecord()
Try
If hasilcek = "False" Then
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Insert into datamhs (noagt,nama,nis,alamat,kota,telp,keterangan)values ('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "','" & TextBox6.Text & "','" & TextBox7.Text & "')"
tampil2.ExecuteNonQuery()
tampil2.ExecuteReader()
Call kosong()
MsgBox("sukses bro")

Else
MsgBox("Data sudah ada , silahkan cek data yang akan diinput ", MsgBoxStyle.Critical, "Input data") ''critical = ! dalam msgbox
End If
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If Button4.Text = "Keluar" Then
Me.Close()
Else
Call kosong()
Call netral()
End If
End Sub
Sub ubahkelompok()
If Button2.Text = "Ubah" Then
TextBox1.Text = ""
Button2.Text = "Simpan"
Button1.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
If TextBox7.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Update datamhs set nama ='" & TextBox2.Text & "',nis='" & TextBox3.Text & "',alamat='" & TextBox4.Text & "',kota='" & TextBox5.Text & "',telp='" & TextBox6.Text & "',keterangan='" & TextBox7.Text & "'where noagt='" & TextBox1.Text & "'"
tampil2.ExecuteNonQuery()
Call kosong()
MsgBox("sukses bro")
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Call ubahkelompok()
End Sub
Sub hapuskelompok()
If Button3.Text = "Hapus" Then
TextBox1.Text = " "
Button3.Text = "Ok"
Button1.Enabled = False
Button2.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub
If TextBox2.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Delete from datamhs where noagt='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()
Call kosong()
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Call hapuskelompok()

End Sub

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
If Button1.Text = "Simpan" Then
Call celrecord()
If hasilcek = False Then
TextBox2.Focus()
Else
MsgBox("Kode Sudah ada, silahkan ganti kode lain", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Informasi")
tampilkan = tampil2.ExecuteReader
End If
Else
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " select* from datamhs where noagt='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()

If tampilkan.HasRows = True Then
While tampilkan.Read()
If (IsDBNull(tampilkan("noagt"))) Then
TextBox1.Focus()
Else
TextBox2.Text = tampilkan("nama")
TextBox2.Focus()
End If
End While
Else
MsgBox("Data tidak diketemukan", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Tambah Data")
End If
End If
End If
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.DatamhsTableAdapter.Fill(Me.PerpustakaanDataSet.datamhs)
End Sub
End Class
IV. Form Data Buku
Form Data Buku digunakan untuk mengiinput,mengedit dan menghapus data buku dengan menggunakan tombol – tombol yang ada seperti Input,Edit dan Delete

Public Class Form3
Sub kosong()
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
TextBox5.Text = ""
TextBox6.Text = ""
TextBox7.Text = ""
TextBox1.Focus()
End Sub
Sub netral()
Button1.Text = "Tambah"
Button2.Text = "Ubah"
Button3.Text = "Hapus"
Button4.Text = "Keluar"
Button1.Enabled = True 'enable=funsi aktif/tdaknya sebuah objek
Button2.Enabled = True
Button3.Enabled = True
Button4.Enabled = True
End Sub
Sub celrecord()
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = "select * from databk where idbuku='" & Trim(TextBox1.Text) & "'"
tampilkan = tampil2.ExecuteReader
If tampilkan.HasRows = True Then ''ada atau tidak recod yg dimaksukkan
hasilcek = True
Else
hasilcek = False
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Call simpankelompok()
End Sub
Sub simpankelompok()
If Button1.Text = "Tambah" Then
TextBox1.Text = ""
Button1.Text = "Simpan"
Button2.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
If TextBox7.Text = "" Then Exit Sub
Call celrecord()
Try
If hasilcek = "False" Then
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Insert into databk (idbuku,judul,pengarang,tahun,penerbit,jmlhal,keterangan)values ('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & TextBox4.Text & "','" & TextBox5.Text & "','" & TextBox6.Text & "','" & TextBox7.Text & "')"
tampil2.ExecuteNonQuery()
Call kosong()
MsgBox("sukses bro")
Else
MsgBox("Data sudah ada , silahkan cek data yang akan diinput ", MsgBoxStyle.Critical, "Input data") ''critical = ! dalam msgbox
End If
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If Button4.Text = "Keluar" Then
Me.Close()
Else
Call kosong()
Call netral()
End If
End Sub
Sub ubahkelompok()
If Button2.Text = "Ubah" Then
TextBox1.Text = ""
Button2.Text = "Simpan"
Button1.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
If TextBox7.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Update databk set judul ='" & TextBox2.Text & "',pengarang='" & TextBox3.Text & "',tahun='" & TextBox4.Text & "',penerbit='" & TextBox5.Text & "',jmlhal='" & TextBox6.Text & "',keterangan='" & TextBox7.Text & "'where idbuku='" & TextBox1.Text & "'"
tampil2.ExecuteNonQuery()
Call kosong()
MsgBox("sukses bro")
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Call ubahkelompok()
End Sub
Sub hapuskelompok()
If Button3.Text = "Hapus" Then
TextBox1.Text = " "
Button3.Text = "Ok"
Button1.Enabled = False
Button2.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub
If TextBox2.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Delete from databk where idbuku='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()
MsgBox("sukses bro")
Call kosong()
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Call hapuskelompok()

End Sub

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
If Button1.Text = "Simpan" Then
Call celrecord()
If hasilcek = False Then
TextBox2.Focus()
Else
MsgBox("Kode Sudah ada, silahkan ganti kode lain", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Informasi")
tampilkan = tampil2.ExecuteReader
End If
Else
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " select* from datamhs where noagt='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()

If tampilkan.HasRows = True Then
While tampilkan.Read()
If (IsDBNull(tampilkan("noagt"))) Then
TextBox1.Focus()
Else
TextBox2.Text = tampilkan("nama")
TextBox2.Focus()
End If
End While
Else
MsgBox("Data tidak diketemukan", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Tambah Data")
End If
End If
End If
End Sub


Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Me.DatabkTableAdapter.Fill(Me.PerpustakaanDataSet.databk)
End Sub
End Class
V. Form Transaksi Peminjaman Buku
Form peminjaman buku digunakan untuk menentukan buku apa saja yang akan dipinjam dan menyimpannya menggunakan tombol – tombol yang ada seperti Simpan, Batal dan Tutup

Public Class Data_Transaksi_Peminjaman
Sub kosong()
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
TextBox5.Text = ""
TextBox6.Text = ""
DateTimePicker1.Text = ""
DateTimePicker2.Text = ""
TextBox1.Focus()
End Sub
Sub netral()
Button1.Text = "Tambah"
Button2.Text = "Ubah"
Button3.Text = "Hapus"
Button4.Text = "Keluar"
Button1.Enabled = True 'enable=funsi aktif/tdaknya sebuah objek
Button2.Enabled = True
Button3.Enabled = True
Button4.Enabled = True
End Sub
Sub celrecord()
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = "select * from trs where notrs='" & Trim(TextBox1.Text) & "'"
tampilkan = tampil2.ExecuteReader
If tampilkan.HasRows = True Then ''ada atau tidak recod yg dimaksukkan
hasilcek = True
Else
hasilcek = False
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Call simpankelompok()
End Sub
Sub simpankelompok()
If Button1.Text = "Tambah" Then
TextBox1.Text = ""
Button1.Text = "Simpan"
Button2.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
Call celrecord()
Try
If hasilcek = "False" Then
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Insert into trs (notrs,noagt,idbuku,tglpjm,tglkmb,lama,jmlbk,keterangan)values ('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "','" & DateTimePicker1.MaxDate & "','" & DateTimePicker2.MaxDate & "','" & TextBox4.Text & "','" & TextBox5.Text & "','" & TextBox6.Text & "')"
tampil2.ExecuteNonQuery()
Call kosong()
MsgBox("sukses bro")
Else
MsgBox("Data sudah ada , silahkan cek data yang akan diinput ", MsgBoxStyle.Critical, "Input data") ''critical = ! dalam msgbox
End If
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If Button4.Text = "Keluar" Then
Me.Close()
Else
Call kosong()
Call netral()
End If
End Sub
Sub ubahkelompok()
If Button2.Text = "Ubah" Then
TextBox1.Text = ""
Button2.Text = "Simpan"
Button1.Enabled = False
Button3.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub ''then exit sub = keluar dari sub class dgan syarat textbox harus diisi/pengecekan validasi
If TextBox2.Text = "" Then Exit Sub
If TextBox3.Text = "" Then Exit Sub
If TextBox4.Text = "" Then Exit Sub
If TextBox5.Text = "" Then Exit Sub
If TextBox6.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Update trs set notrs ='" & TextBox2.Text & "',noagt='" & TextBox3.Text & "',idbuku='" & TextBox4.Text & "',tglpjm='" & DateTimePicker1.MaxDate & "',tglkmb='" & DateTimePicker2.MaxDate & "',lama='" & TextBox4.Text & "',jmlbk='" & TextBox5.Text & "',keterangan='" & TextBox6.Text & "'where idbuku='" & TextBox1.Text & "'"
tampil2.ExecuteNonQuery()
Call kosong()
MsgBox("sukses bro")
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Call ubahkelompok()
End Sub
Sub hapuskelompok()
If Button3.Text = "Hapus" Then
TextBox1.Text = " "
Button3.Text = "Ok"
Button1.Enabled = False
Button2.Enabled = False
Button4.Text = "Batal"
TextBox1.Focus()
Else
If TextBox1.Text = "" Then Exit Sub
If TextBox2.Text = "" Then Exit Sub
Try
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " Delete from trs where notrs='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()
MsgBox("sukses bro")
Call kosong()
TextBox1.Focus()
Catch ex As Exception
MsgBox(ex.ToString())
End Try
End If
End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Call hapuskelompok()

End Sub

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
If Button1.Text = "Simpan" Then
Call celrecord()
If hasilcek = False Then
TextBox2.Focus()
Else
MsgBox("Kode Sudah ada, silahkan ganti kode lain", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Informasi")
tampilkan = tampil2.ExecuteReader
End If
Else
Call bukakoneksi()
tampil2.Connection = database
tampil2.CommandType = CommandType.Text
tampil2.CommandText = " select* from trs where notrs='" & Trim(TextBox1.Text) & "'"
tampil2.ExecuteNonQuery()

If tampilkan.HasRows = True Then
While tampilkan.Read()
If (IsDBNull(tampilkan("notrs"))) Then
TextBox1.Focus()
Else
TextBox2.Text = tampilkan("noagt")
TextBox2.Focus()
End If
End While
Else
MsgBox("Data tidak diketemukan", MsgBoxStyle.Critical + MsgBoxStyle.OkOnly, "Tambah Data")
End If
End If
End If
End Sub

Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick

End Sub

Private Sub Data_Transaksi_Peminjaman_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.TrsTableAdapter.Fill(Me.PerpustakaanDataSet.trs)

End Sub
End Class

Sekian dan terima kasih