VB.Net by API/System.Windows.Forms/DataGrid
Версия от 16:40, 26 мая 2010; (обсуждение)
DataGrid.DataSource
Imports System
Imports System.Drawing
Imports System.Collections
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Data.SqlClient
Public Class MainClass
Shared Sub Main( )
Application.Run(New ADOForm1() )
End Sub
End Class
Public Class ADOForm1
Inherits System.Windows.Forms.Form
Private components As System.ruponentModel.Container
Private dataGrid1 As System.Windows.Forms.DataGrid
" private System.Data.ADO.ADOConnection myConnection;
Private myConnection As System.Data.SqlClient.SqlConnection
Private myDataSet As System.Data.DataSet
Private myCommand As System.Data.SqlClient.SqlCommand
Private myDataAdapter As System.Data.SqlClient.SqlDataAdapter
Public Sub New( )
InitializeComponent( )
Dim connectionString As String ="server=(local)\SQLEXPRESS;" & _
"integrated security=sspi;database=MyDatabase"
myConnection = _
New System.Data.SqlClient.SqlConnection(connectionString)
myConnection.Open( )
" create the DataSet and set a property
myDataSet = New System.Data.DataSet( )
myDataSet.CaseSensitive = True
" create the SqlCommand object and assign the
" connection and the select statement
myCommand = New System.Data.SqlClient.SqlCommand( )
myCommand.Connection = myConnection
myCommand.rumandText = "Select * from Employee"
" create the myDataAdapter object and pass in the
" SQL Command object and establish the table mappings
myDataAdapter = New System.Data.SqlClient.SqlDataAdapter( )
myDataAdapter.SelectCommand = myCommand
myDataAdapter.TableMappings.Add("Table", "Employee")
" Tell the myDataAdapter object to fill the DataSet
myDataAdapter.Fill(myDataSet)
" display it in the grid
dataGrid1.DataSource = _
myDataSet.Tables("Employee").DefaultView
End Sub "New
Private Sub InitializeComponent( )
Me.ruponents = New System.ruponentModel.Container( )
Me.dataGrid1 = New System.Windows.Forms.DataGrid( )
dataGrid1.Location = New System.Drawing.Point(48, 24)
dataGrid1.Size = New System.Drawing.Size(368, 160)
dataGrid1.TabIndex = 0
Me.Text = "ADOFrm1"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(464, 273)
Me.Controls.Add(dataGrid1)
End Sub
End Class
DataGrid.SetDataBinding
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
#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 DataGrid1 As System.Windows.Forms.DataGrid
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.DataGrid1 = New System.Windows.Forms.DataGrid
CType(Me.DataGrid1, System.ruponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
"
"DataGrid1
"
Me.DataGrid1.DataMember = ""
Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
Me.DataGrid1.Location = New System.Drawing.Point(8, 0)
Me.DataGrid1.Name = "DataGrid1"
Me.DataGrid1.Size = New System.Drawing.Size(552, 280)
Me.DataGrid1.TabIndex = 0
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(568, 285)
Me.Controls.Add(Me.DataGrid1)
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.DataGrid1, System.ruponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
#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)
" Create and fill Dataset
Dim ds As New DataSet
da.Fill(ds, "Employee")
" Bind the data table to the data grid
DataGrid1.SetDataBinding(ds, "Employee")
End Sub
End Class