I've made a small vb.net program to read my database and delete records
that are specific to my needs. Well, the program says it's complete but
nothing is deleted from my database. I've listed the code below.
Imports System.data.oledb
Imports System.Data
Public Class Form1
Inherits System.Windows.Forms.Form
Public Enum etif
efilename = 0
efilepath = 1
einvoice = 2
ejob = 3
eorder = 4
End Enum
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
'Add any initialization after the InitializeComponent() call
End Sub
'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As
Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form
Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents OleDbDataAdapter1 As
System.Data.OleDb.OleDbDataAdapter
Friend WithEvents OleDbSelectCommand1 As
System.Data.OleDb.OleDbCommand
Friend WithEvents OleDbInsertCommand1 As
System.Data.OleDb.OleDbCommand
Friend WithEvents OleDbUpdateCommand1 As
System.Data.OleDb.OleDbCommand
Friend WithEvents OleDbDeleteCommand1 As
System.Data.OleDb.OleDbCommand
Friend WithEvents OleDbConnection1 As
System.Data.OleDb.OleDbConnection
Friend WithEvents DataSet11 As delete_tiff_records.DataSet1
<System.Diagnostics.DebuggerStepThrough()> Private Sub
InitializeComponent()
Me.Button1 = New System.Windows.Forms.Button
Me.OleDbDataAdapter1 = New System.Data.OleDb.OleDbDataAdapter
Me.OleDbSelectCommand1 = New System.Data.OleDb.OleDbCommand
Me.OleDbInsertCommand1 = New System.Data.OleDb.OleDbCommand
Me.OleDbUpdateCommand1 = New System.Data.OleDb.OleDbCommand
Me.OleDbDeleteCommand1 = New System.Data.OleDb.OleDbCommand
Me.OleDbConnection1 = New System.Data.OleDb.OleDbConnection
Me.DataSet11 = New delete_tiff_records.DataSet1
CType(Me.DataSet11,
System.ComponentModel.ISupportInitialize).BeginIni t()
Me.SuspendLayout()
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(40, 32)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(136, 144)
Me.Button1.TabIndex = 0
Me.Button1.Text = "Button1"
'
'OleDbDataAdapter1
'
Me.OleDbDataAdapter1.DeleteCommand = Me.OleDbDeleteCommand1
Me.OleDbDataAdapter1.InsertCommand = Me.OleDbInsertCommand1
Me.OleDbDataAdapter1.SelectCommand = Me.OleDbSelectCommand1
Me.OleDbDataAdapter1.TableMappings.AddRange(New
System.Data.Common.DataTableMapping() {New
System.Data.Common.DataTableMapping("Table", "tiff", New
System.Data.Common.DataColumnMapping() {New
System.Data.Common.DataColumnMapping("filename", "filename"), New
System.Data.Common.DataColumnMapping("filepath", "filepath"), New
System.Data.Common.DataColumnMapping("invoice", "invoice"), New
System.Data.Common.DataColumnMapping("job", "job"), New
System.Data.Common.DataColumnMapping("order", "order")})})
Me.OleDbDataAdapter1.UpdateCommand = Me.OleDbUpdateCommand1
'
'OleDbSelectCommand1
'
Me.OleDbSelectCommand1.CommandText = "SELECT filename,
filepath, invoice, job, [order] FROM tiff"
Me.OleDbSelectCommand1.Connection = Me.OleDbConnection1
'
'OleDbInsertCommand1
'
Me.OleDbInsertCommand1.CommandText = "INSERT INTO
tiff(filename, filepath, invoice, job, [order]) VALUES (?, ?, ?, ?, ?"
& _
")"
Me.OleDbInsertCommand1.Connection = Me.OleDbConnection1
Me.OleDbInsertCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("filename",
System.Data.OleDb.OleDbType.VarWChar, 50, "filename"))
Me.OleDbInsertCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("filepath",
System.Data.OleDb.OleDbType.VarWChar, 50, "filepath"))
Me.OleDbInsertCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("invoice",
System.Data.OleDb.OleDbType.Integer, 0, "invoice"))
Me.OleDbInsertCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("job",
System.Data.OleDb.OleDbType.VarWChar, 50, "job"))
Me.OleDbInsertCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("order",
System.Data.OleDb.OleDbType.Integer, 0, "order"))
'
'OleDbUpdateCommand1
'
Me.OleDbUpdateCommand1.CommandText = "UPDATE tiff SET filename
= ?, filepath = ?, invoice = ?, job = ?, [order] = ? WHE" & _
"RE (filename = ?) AND (filepath = ? OR ? IS NULL AND filepath
IS NULL) AND (invo" & _
"ice = ? OR ? IS NULL AND invoice IS NULL) AND (job = ? OR ? IS
NULL AND job IS N" & _
"ULL) AND ([order] = ? OR ? IS NULL AND [order] IS NULL)"
Me.OleDbUpdateCommand1.Connection = Me.OleDbConnection1
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("filename",
System.Data.OleDb.OleDbType.VarWChar, 50, "filename"))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("filepath",
System.Data.OleDb.OleDbType.VarWChar, 50, "filepath"))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("invoice",
System.Data.OleDb.OleDbType.Integer, 0, "invoice"))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("job",
System.Data.OleDb.OleDbType.VarWChar, 50, "job"))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("order",
System.Data.OleDb.OleDbType.Integer, 0, "order"))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filenam e",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filename", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filepat h",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filepath", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filepat h1",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filepath", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_invoice ",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "invoice", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_invoice 1",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "invoice", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_job",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "job", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_job1",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "job", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_order",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "order", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbUpdateCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_order1" ,
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "order", System.Data.DataRowVersion.Original, Nothing))
'
'OleDbDeleteCommand1
'
Me.OleDbDeleteCommand1.CommandText = "DELETE FROM tiff WHERE
(filename = ?) AND (filepath = ? OR ? IS NULL AND filepath" & _
" IS NULL) AND (invoice = ? OR ? IS NULL AND invoice IS NULL)
AND (job = ? OR ? I" & _
"S NULL AND job IS NULL) AND ([order] = ? OR ? IS NULL AND
[order] IS NULL)"
Me.OleDbDeleteCommand1.Connection = Me.OleDbConnection1
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filenam e",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filename", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filepat h",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filepath", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_filepat h1",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "filepath", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_invoice ",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "invoice", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_invoice 1",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "invoice", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_job",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "job", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_job1",
System.Data.OleDb.OleDbType.VarWChar, 50,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "job", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_order",
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "order", System.Data.DataRowVersion.Original, Nothing))
Me.OleDbDeleteCommand1.Parameters.Add(New
System.Data.OleDb.OleDbParameter("Original_order1" ,
System.Data.OleDb.OleDbType.Integer, 0,
System.Data.ParameterDirection.Input, False, CType(0, Byte), CType(0,
Byte), "order", System.Data.DataRowVersion.Original, Nothing))
'
'OleDbConnection1
'
Me.OleDbConnection1.ConnectionString = "Jet OLEDB:Global
Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database L" & _
"ocking Mode=1;Data Source=""T:\SCANNING.MDB"";Jet OLEDB:Engine
Type=5;Provider=""Mi" & _
"crosoft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet
OLEDB:SFP=False;persist se" & _
"curity info=False;Extended Properties=;Mode=Share Deny
None;Jet OLEDB:Encrypt Da" & _
"tabase=False;Jet OLEDB:Create System Database=False;Jet
OLEDB:Don't Copy Locale " & _
"on Compact=False;Jet OLEDB:Compact Without Replica
Repair=False;User ID=Admin;Je" & _
"t OLEDB:Global Bulk Transactions=1"
'
'DataSet11
'
Me.DataSet11.DataSetName = "DataSet1"
Me.DataSet11.Locale = New
System.Globalization.CultureInfo("en-US")
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.Add(Me.Button1)
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.DataSet11,
System.ComponentModel.ISupportInitialize).EndInit( )
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
Dim x As Long
Dim search As String
Dim dr As DataRow
OleDbDataAdapter1.Fill(DataSet11)
For x = 181363 To 181748
search = "ANLIN-" & x & ".TIF"
For Each dr In DataSet11.tiff
If dr.Item(etif.efilename) = search Then
DataSet11.tiff.Rows.Remove(dr)
Exit For
End If
Next
Next
OleDbDataAdapter1.Update(DataSet11, "tiff")
MessageBox.Show("Done")
End Sub
End Class