VB.Net/Database ADO.net/Data bind to Label

Материал из VB Эксперт
Перейти к: навигация, поиск

Data set Bind to Label

<source lang="vbnet"> Imports System Imports System.Data Imports System.Windows.Forms Imports System.Data.SqlClient 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
  1. 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.ruponentModel.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 Label1 As System.Windows.Forms.Label
  Friend WithEvents Label2 As System.Windows.Forms.Label
  Friend WithEvents DataSet1 As System.Data.DataSet
  <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
     Me.Label1 = New System.Windows.Forms.Label
     Me.Label2 = New System.Windows.Forms.Label
     Me.DataSet1 = New System.Data.DataSet
     CType(Me.DataSet1, System.ruponentModel.ISupportInitialize).BeginInit()
     Me.SuspendLayout()
     "
     "Label1
     "
     Me.Label1.Location = New System.Drawing.Point(16, 16)
     Me.Label1.Name = "Label1"
     Me.Label1.TabIndex = 0
     Me.Label1.Text = "Label1"
     "
     "Label2
     "
     Me.Label2.Location = New System.Drawing.Point(16, 56)
     Me.Label2.Name = "Label2"
     Me.Label2.TabIndex = 1
     Me.Label2.Text = "Label2"
     "
     "DataSet1
     "
     Me.DataSet1.DataSetName = "NewDataSet"
     Me.DataSet1.Locale = New System.Globalization.CultureInfo("en-GB")
     "
     "Form1
     "
     Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
     Me.ClientSize = New System.Drawing.Size(128, 85)
     Me.Controls.Add(Me.Label2)
     Me.Controls.Add(Me.Label1)
     Me.Name = "Form1"
     Me.Text = "Form1"
     CType(Me.DataSet1, System.ruponentModel.ISupportInitialize).EndInit()
     Me.ResumeLayout(False)
  End Sub
  1. End Region
  Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
     "Create Connection object
     Dim thisConnection As New SqlConnection _
        ("server=(local)\SQLEXPRESS;" & _
         "integrated security=sspi;" & _
         "database=MyDatabase")
     " Sql Query 
     Dim sql As String = _
        "SELECT * FROM Employee"
     " Create Data Adapter
     Dim da As New SqlDataAdapter(sql, thisConnection)
     " Fill Dataset
     da.Fill(DataSet1, "Employee")
     " Bind Label1 to ProductName column of the Products table
     Label1.DataBindings.Add("text", DataSet1, "Employee.FirstName")
     " Bind Label2 to UnitPrice column of the Products table
     Label2.DataBindings.Add("text", DataSet1, "Employee.LastName")
  End Sub

End Class

      </source>