Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Xml
Imports System.Windows.Forms
Imports System.Data.SqlClient
Imports System.Data.OleDb
Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1
Application.Run(form1)
End Sub
End Class
Public Class Form1
Inherits System.Windows.Forms.Form
#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 dg As System.Windows.Forms.DataGrid
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.dg = New System.Windows.Forms.DataGrid()
CType(Me.dg, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'dg
'
Me.dg.AlternatingBackColor = System.Drawing.Color.LightGray
Me.dg.BackColor = System.Drawing.Color.DarkGray
Me.dg.CaptionBackColor = System.Drawing.Color.White
Me.dg.CaptionFont = New System.Drawing.Font("Verdana", 10.0!)
Me.dg.CaptionForeColor = System.Drawing.Color.Navy
Me.dg.CaptionText = "Employee"
Me.dg.DataMember = ""
Me.dg.ForeColor = System.Drawing.Color.Black
Me.dg.GridLineColor = System.Drawing.Color.Black
Me.dg.GridLineStyle = System.Windows.Forms.DataGridLineStyle.None
Me.dg.HeaderBackColor = System.Drawing.Color.Silver
Me.dg.HeaderForeColor = System.Drawing.Color.Black
Me.dg.LinkColor = System.Drawing.Color.Navy
Me.dg.Location = New System.Drawing.Point(9, 7)
Me.dg.Name = "dg"
Me.dg.ParentRowsBackColor = System.Drawing.Color.White
Me.dg.ParentRowsForeColor = System.Drawing.Color.Black
Me.dg.SelectionBackColor = System.Drawing.Color.Navy
Me.dg.SelectionForeColor = System.Drawing.Color.White
Me.dg.Size = New System.Drawing.Size(352, 440)
Me.dg.TabIndex = 1
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(370, 455)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.dg})
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
Me.MaximizeBox = False
Me.MinimizeBox = False
Me.Name = "Form1"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "Employee Editor"
CType(Me.dg, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
#End Region
Private da As SqlDataAdapter
Private ds As DataSet
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
' Create a Connection object
Dim dbConn As New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI")
' Create the data adapter object pointing to the authors table
da = New SqlDataAdapter( _
"SELECT ID, FirstName, LastName FROM Employee", dbConn)
' Fill the DataSet
ds = New DataSet("Employee")
da.Fill(ds)
' Display the records in a DataGrid component
dg.DataSource = ds.Tables(0)
End Sub
Private Sub Form1_Closing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
' Message box to prompt the save request
If (MessageBox.Show("Do you want save the changes?", _
"Update", _
MessageBoxButtons.YesNo) = DialogResult.Yes) Then
Try
' Create the insert, delete and update statements automatically
Dim cb As New SqlCommandBuilder(da)
' Retrieve just the changed rows
Dim dsChanges As DataSet = ds.GetChanges()
If Not dsChanges Is Nothing Then
' Update the database
da.Update(dsChanges)
' Accept the changes within the DataSet
ds.AcceptChanges()
End If
Catch ex As Exception
' Error occurs, show the message
MessageBox.Show(ex.Message)
End Try
End If
End Sub
End Class
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