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Stefan Hutter
2020-10-21 10:43:18 +02:00
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Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports System.IO
Public Class Form1
Inherits System.Windows.Forms.Form
#Region " Vom Windows Form Designer generierter Code "
Public Sub New()
MyBase.New()
' Dieser Aufruf ist für den Windows Form-Designer erforderlich.
InitializeComponent()
' Initialisierungen nach dem Aufruf InitializeComponent() hinzufügen
End Sub
' Die Form überschreibt den Löschvorgang der Basisklasse, um Komponenten zu bereinigen.
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
' Für Windows Form-Designer erforderlich
Private components As System.ComponentModel.IContainer
'HINWEIS: Die folgende Prozedur ist für den Windows Form-Designer erforderlich
'Sie kann mit dem Windows Form-Designer modifiziert werden.
'Verwenden Sie nicht den Code-Editor zur Bearbeitung.
Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Button2 As System.Windows.Forms.Button
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents TxtTable As System.Windows.Forms.TextBox
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents TxtKeyField As System.Windows.Forms.TextBox
Friend WithEvents TxtKeyValue As System.Windows.Forms.TextBox
Friend WithEvents KeyFeld As System.Windows.Forms.Label
Friend WithEvents Label4 As System.Windows.Forms.Label
Friend WithEvents Label5 As System.Windows.Forms.Label
Friend WithEvents Button3 As System.Windows.Forms.Button
Friend WithEvents Button4 As System.Windows.Forms.Button
Friend WithEvents txtConnstring As System.Windows.Forms.TextBox
Friend WithEvents txtFilename As System.Windows.Forms.TextBox
Friend WithEvents txtBindDatafeld As System.Windows.Forms.TextBox
Friend WithEvents cbstring As System.Windows.Forms.CheckBox
Friend WithEvents MainMenu1 As System.Windows.Forms.MainMenu
Friend WithEvents MenuItem1 As System.Windows.Forms.MenuItem
Friend WithEvents MenuItem2 As System.Windows.Forms.MenuItem
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container
Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(Form1))
Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog
Me.Button1 = New System.Windows.Forms.Button
Me.txtConnstring = New System.Windows.Forms.TextBox
Me.Label1 = New System.Windows.Forms.Label
Me.txtFilename = New System.Windows.Forms.TextBox
Me.Button2 = New System.Windows.Forms.Button
Me.Label2 = New System.Windows.Forms.Label
Me.TxtTable = New System.Windows.Forms.TextBox
Me.Label3 = New System.Windows.Forms.Label
Me.TxtKeyField = New System.Windows.Forms.TextBox
Me.TxtKeyValue = New System.Windows.Forms.TextBox
Me.KeyFeld = New System.Windows.Forms.Label
Me.Label4 = New System.Windows.Forms.Label
Me.txtBindDatafeld = New System.Windows.Forms.TextBox
Me.Label5 = New System.Windows.Forms.Label
Me.Button3 = New System.Windows.Forms.Button
Me.Button4 = New System.Windows.Forms.Button
Me.cbstring = New System.Windows.Forms.CheckBox
Me.MainMenu1 = New System.Windows.Forms.MainMenu(Me.components)
Me.MenuItem1 = New System.Windows.Forms.MenuItem
Me.MenuItem2 = New System.Windows.Forms.MenuItem
Me.SuspendLayout()
'
'Button1
'
Me.Button1.Image = CType(resources.GetObject("Button1.Image"), System.Drawing.Image)
Me.Button1.Location = New System.Drawing.Point(584, 8)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(24, 24)
Me.Button1.TabIndex = 2
Me.Button1.Visible = False
'
'txtConnstring
'
Me.txtConnstring.Location = New System.Drawing.Point(112, 8)
Me.txtConnstring.Name = "txtConnstring"
Me.txtConnstring.Size = New System.Drawing.Size(472, 20)
Me.txtConnstring.TabIndex = 3
Me.txtConnstring.Text = "data source=localhost;initial catalog=edoka;persist security info=false;workstati" & _
"on id=;packet size=4096;user id=sa;password=it;"
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(8, 8)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(100, 23)
Me.Label1.TabIndex = 4
Me.Label1.Text = "Connestionstring"
'
'txtFilename
'
Me.txtFilename.Location = New System.Drawing.Point(112, 32)
Me.txtFilename.Name = "txtFilename"
Me.txtFilename.Size = New System.Drawing.Size(472, 20)
Me.txtFilename.TabIndex = 5
Me.txtFilename.Text = "c:\temp\testdata."
'
'Button2
'
Me.Button2.Image = CType(resources.GetObject("Button2.Image"), System.Drawing.Image)
Me.Button2.Location = New System.Drawing.Point(584, 32)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(24, 23)
Me.Button2.TabIndex = 6
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(8, 32)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(100, 23)
Me.Label2.TabIndex = 7
Me.Label2.Text = "Dateiname"
'
'TxtTable
'
Me.TxtTable.Location = New System.Drawing.Point(112, 80)
Me.TxtTable.Name = "TxtTable"
Me.TxtTable.Size = New System.Drawing.Size(472, 20)
Me.TxtTable.TabIndex = 8
'
'Label3
'
Me.Label3.Location = New System.Drawing.Point(8, 80)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(100, 23)
Me.Label3.TabIndex = 9
Me.Label3.Text = "Tabelle"
'
'TxtKeyField
'
Me.TxtKeyField.Location = New System.Drawing.Point(112, 104)
Me.TxtKeyField.Name = "TxtKeyField"
Me.TxtKeyField.Size = New System.Drawing.Size(472, 20)
Me.TxtKeyField.TabIndex = 10
'
'TxtKeyValue
'
Me.TxtKeyValue.Location = New System.Drawing.Point(112, 128)
Me.TxtKeyValue.Name = "TxtKeyValue"
Me.TxtKeyValue.Size = New System.Drawing.Size(352, 20)
Me.TxtKeyValue.TabIndex = 11
'
'KeyFeld
'
Me.KeyFeld.Location = New System.Drawing.Point(8, 104)
Me.KeyFeld.Name = "KeyFeld"
Me.KeyFeld.Size = New System.Drawing.Size(100, 23)
Me.KeyFeld.TabIndex = 12
Me.KeyFeld.Text = "Key-Feld"
'
'Label4
'
Me.Label4.Location = New System.Drawing.Point(8, 128)
Me.Label4.Name = "Label4"
Me.Label4.Size = New System.Drawing.Size(100, 23)
Me.Label4.TabIndex = 13
Me.Label4.Text = "Key-Value"
'
'txtBindDatafeld
'
Me.txtBindDatafeld.Location = New System.Drawing.Point(112, 152)
Me.txtBindDatafeld.Name = "txtBindDatafeld"
Me.txtBindDatafeld.Size = New System.Drawing.Size(472, 20)
Me.txtBindDatafeld.TabIndex = 14
'
'Label5
'
Me.Label5.Location = New System.Drawing.Point(8, 152)
Me.Label5.Name = "Label5"
Me.Label5.Size = New System.Drawing.Size(100, 23)
Me.Label5.TabIndex = 15
Me.Label5.Text = "Bin-Datafeld"
'
'Button3
'
Me.Button3.Location = New System.Drawing.Point(112, 200)
Me.Button3.Name = "Button3"
Me.Button3.Size = New System.Drawing.Size(120, 40)
Me.Button3.TabIndex = 16
Me.Button3.Text = "DB -> Datei"
'
'Button4
'
Me.Button4.Location = New System.Drawing.Point(464, 200)
Me.Button4.Name = "Button4"
Me.Button4.Size = New System.Drawing.Size(120, 40)
Me.Button4.TabIndex = 17
Me.Button4.Text = "Datei -> DB"
'
'cbstring
'
Me.cbstring.Location = New System.Drawing.Point(488, 128)
Me.cbstring.Name = "cbstring"
Me.cbstring.Size = New System.Drawing.Size(104, 24)
Me.cbstring.TabIndex = 19
Me.cbstring.Text = "String"
'
'MainMenu1
'
Me.MainMenu1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItem1})
'
'MenuItem1
'
Me.MenuItem1.Index = 0
Me.MenuItem1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItem2})
Me.MenuItem1.Text = "&Datei"
'
'MenuItem2
'
Me.MenuItem2.Index = 0
Me.MenuItem2.Text = "&Beenden"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(624, 249)
Me.Controls.Add(Me.cbstring)
Me.Controls.Add(Me.Button4)
Me.Controls.Add(Me.Button3)
Me.Controls.Add(Me.Label5)
Me.Controls.Add(Me.txtBindDatafeld)
Me.Controls.Add(Me.Label4)
Me.Controls.Add(Me.KeyFeld)
Me.Controls.Add(Me.TxtKeyValue)
Me.Controls.Add(Me.TxtKeyField)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.TxtTable)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Button2)
Me.Controls.Add(Me.txtFilename)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.txtConnstring)
Me.Controls.Add(Me.Button1)
Me.Menu = Me.MainMenu1
Me.Name = "Form1"
Me.Text = "SQL-BinData"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
#End Region
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Load_Data()
End Sub
Private Sub Load_Data()
Dim dsdata As New DataSet
Dim filename As String = Me.txtFilename.Text
Dim sql As String = ""
sql = "Select * from " + Me.TxtTable.Text
sql = sql & " where " + Me.TxtKeyField.Text
sql = sql & "="
If Me.cbstring.Checked = True Then sql = sql & "'"
sql = sql & Me.TxtKeyValue.Text
If Me.cbstring.Checked = True Then sql = sql & "'"
Try
dsdata.Tables.Clear()
Dim connection As New SqlConnection
Dim da As New SqlDataAdapter(sql, connection)
Dim cb As SqlCommandBuilder = New SqlCommandBuilder(da)
Dim ds As New DataSet
Try
connection.ConnectionString = Me.txtConnstring.Text
connection.Open()
da.Fill(ds, "Daten")
Dim myrow As DataRow
If ds.Tables(0).Rows.Count = 0 Then
MsgBox("Empfänger konnten nicht geladen werden.")
Else
If ds.Tables(0).Rows.Count > 1 Then
MsgBox("Mehr als ein Datensatz ausgewählt.", MsgBoxStyle.Exclamation)
Else
Dim i As Integer
Dim idatafield As Integer = -1
For i = 0 To ds.Tables(0).Columns.Count - 1
If UCase(ds.Tables(0).Columns(i).Caption) = UCase(Me.txtBindDatafeld.Text) Then
idatafield = i
End If
Next
If idatafield > -1 Then
myrow = ds.Tables(0).Rows(0)
Dim MyData() As Byte
MyData = myrow.Item(idatafield)
Dim K As Long
K = UBound(MyData)
Dim fs As New FileStream(Me.txtFilename.Text, FileMode.OpenOrCreate, FileAccess.Write)
fs.Write(MyData, 0, K)
fs.Close()
fs = Nothing
Else
MsgBox("Bin-Datenfeld in der Tabelle nicht vorhanden", MsgBoxStyle.Exclamation)
End If
End If
End If
Catch ex As Exception
MsgBox("Ein Fehler ist aufgetreten" + ex.Message)
Finally
cb = Nothing
ds = Nothing
da = Nothing
connection.Close()
connection = Nothing
End Try
Catch ex As Exception
MsgBox("Ein Fehler ist aufgetreten" + ex.Message)
Finally
dsdata = Nothing
End Try
MsgBox("Auslesen der Daten erfolgreich beendet.")
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim s As String
Me.OpenFileDialog1.ShowDialog()
If Me.OpenFileDialog1.FileName <> "" Then
Me.txtConnstring.Text = ""
FileOpen(1, Me.OpenFileDialog1.FileName, OpenMode.Input)
While Not EOF(1)
Input(1, s)
Me.txtConnstring.Text = Me.txtConnstring.Text + s
End While
FileClose(1)
End If
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.OpenFileDialog1.ShowDialog()
If Me.OpenFileDialog1.FileName <> "" Then Me.txtFilename.Text = Me.OpenFileDialog1.FileName
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Save_Data()
End Sub
Private Sub save_data()
Dim dsdata As New DataSet
Dim filename As String = Me.txtFilename.Text
Dim sql As String = ""
sql = "Select * from " + Me.TxtTable.Text
sql = sql & " where " + Me.TxtKeyField.Text
sql = sql & "="
If Me.cbstring.Checked = True Then sql = sql & "'"
sql = sql & Me.TxtKeyValue.Text
If Me.cbstring.Checked = True Then sql = sql & "'"
Try
dsdata.Tables.Clear()
Dim connection As New SqlConnection
Dim da As New SqlDataAdapter(sql, connection)
Dim cb As SqlCommandBuilder = New SqlCommandBuilder(da)
Dim ds As New DataSet
Dim fs As New FileStream(filename, FileMode.Open, FileAccess.Read)
Dim mydata(fs.Length) As Byte
fs.Read(mydata, 0, fs.Length)
fs.Close()
connection.ConnectionString = Me.txtConnstring.Text
connection.Open()
da.Fill(ds, "empf")
Dim myRow As DataRow
If ds.Tables(0).Rows.Count = 0 Then
MsgBox("Es wurde kein Daten für den Update selektiert.")
Else
If ds.Tables(0).Rows.Count > 1 Then
MsgBox("Es wurden mehr als 1 Datensatz für den Update selektiert.")
Else
Dim i As Integer
Dim idatafield As Integer = -1
For i = 0 To ds.Tables(0).Columns.Count - 1
If UCase(ds.Tables(0).Columns(i).Caption) = UCase(Me.txtBindDatafeld.Text) Then
idatafield = i
End If
Next
myRow = ds.Tables(0).Rows(0)
myRow.Item(idatafield) = mydata
da.Update(ds, "empf")
End If
End If
fs = Nothing
cb = Nothing
ds = Nothing
da = Nothing
connection.Close()
connection = Nothing
Catch ex As Exception
MsgBox("Es ist ein Fehler aufgetreten." & ex.Message)
End Try
MsgBox("Speichern der Daten erfolgreich beendet.")
End Sub
Private Sub MenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem2.Click
Me.Close()
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
End Class