VISUALIZZA LO SCHEMA DELLE TABELLE





Imports System.Data.OleDb

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 DataGrid1 As System.Windows.Forms.DataGrid
Friend WithEvents Button1 As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.DataGrid1 = New System.Windows.Forms.DataGrid()
Me.Button1 = New System.Windows.Forms.Button()
CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'

'DataGrid1

'

Me.DataGrid1.DataMember = ""
Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
Me.DataGrid1.Name = "DataGrid1"
Me.DataGrid1.Size = New System.Drawing.Size(720, 432)
Me.DataGrid1.TabIndex = 0
'

'Button1

'

Me.Button1.Location = New System.Drawing.Point(640, 440)
Me.Button1.Name = "Button1"
Me.Button1.TabIndex = 1
Me.Button1.Text = "Go"
'

'Form1

'

Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
Me.ClientSize = New System.Drawing.Size(720, 472)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.DataGrid1})
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.DataGrid1, 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 conn As OleDbConnection = New OleDbConnection _
("Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=Northwind;Data Source=60016P05260")

Dim command As OleDbCommand = New OleDbCommand("ORDERS", conn)
command.CommandType = CommandType.TableDirect

Try
conn.Open()
Dim reader As OleDbDataReader = _
command.ExecuteReader(CommandBehavior.SchemaOnly)

DataGrid1.SetDataBinding(reader.GetSchemaTable(), "")
reader.Close()
Finally
conn.Close()
End Try
End Sub
End Class










( visualizzaloschemadelletabelle.html )- by Paolo Puglisi - Modifica del 17/12/2023