XMLReader and DataGrid : XML DataGrid « XML « VB.Net

1. VB.Net
2. XML
3. XML DataGrid

XMLReader and DataGrid

Imports System
Imports System.IO
Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Imports System.Xml
Imports System.Windows.Forms

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 btnConfigXML As System.Windows.Forms.Button
   Friend WithEvents XmlGrid As System.Windows.Forms.DataGrid
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
      Me.btnConfigXML = New System.Windows.Forms.Button
      Me.XmlGrid = New System.Windows.Forms.DataGrid
      CType(Me.XmlGrid, System.ComponentModel.ISupportInitialize).BeginInit()
      Me.SuspendLayout()
      '
      'btnConfigXML
      '
      Me.btnConfigXML.Location = New System.Drawing.Point(16, 27)
      Me.btnConfigXML.Name = "btnConfigXML"
      Me.btnConfigXML.Size = New System.Drawing.Size(75, 37)
      Me.btnConfigXML.TabIndex = 2
      Me.btnConfigXML.Text = "Configure XML"
      '
      'XmlGrid
      '
      Me.XmlGrid.DataMember = ""
      Me.XmlGrid.HeaderForeColor = System.Drawing.SystemColors.ControlText
      Me.XmlGrid.Location = New System.Drawing.Point(112, 8)
      Me.XmlGrid.Name = "XmlGrid"
      Me.XmlGrid.Size = New System.Drawing.Size(304, 336)
      Me.XmlGrid.TabIndex = 3
      '
      'Form1
      '
      Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
      Me.ClientSize = New System.Drawing.Size(424, 349)
      Me.Controls.Add(Me.XmlGrid)
      Me.Controls.Add(Me.btnConfigXML)
      Me.Name = "Form1"
      Me.Text = "XML Demo"
      CType(Me.XmlGrid, System.ComponentModel.ISupportInitialize).EndInit()
      Me.ResumeLayout(False)

   End Sub

#End Region

   Private Sub btnConfigXML_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnConfigXML.Click
      ' Create connection
      Dim thisConnection As New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI") 

      ' Query string
      Dim sql As String = _
         "SELECT ID, LastName " & _
         "FROM Employee " & _
         "FOR XML AUTO"

      ' Create Connection
      Dim thisCommand As New SqlCommand(sql, thisConnection)

      Try
         thisConnection.Open()

         Dim reader As XmlReader = thisCommand.ExecuteXmlReader()

         Dim ds As New DataSet

         ds.ReadXml(reader, XmlReadMode.InferSchema)

         XmlGrid.DataSource = ds

      Catch ex As SqlException
         MessageBox.Show(ex.Message)
      Finally
         thisConnection.Close()
      End Try
   End Sub
End Class

           
       

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