VB.Net Tutorial/Database ADO.net/DataGridView

Материал из VB Эксперт
Версия от 15:56, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
(разн.) ← Предыдущая | Текущая версия (разн.) | Следующая → (разн.)
Перейти к: навигация, поиск

Load data in Access to DataGridView

<source lang="vbnet">Imports System.Data.OleDb Imports System.Data Imports System.Windows.Forms public class LoadAccessDataToDataView

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=MyMDB.mdb"
       Dim SQLString As String = "SELECT * FROM TestDB"
       Dim OleDBConn1 As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(ConnString)
       Dim DataSet1 As New DataSet()
       Dim OleDbDataAdapter1 As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(SQLString, OleDBConn1)
       OleDBConn1.Open()
       OleDbDataAdapter1.Fill(DataSet1, "TestDB")
       DataGridView1.DataSource = DataSet1.Tables("TestDB")
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       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.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.Button1 = New System.Windows.Forms.Button
       Me.DataGridView1 = New System.Windows.Forms.DataGridView
       CType(Me.DataGridView1, System.ruponentModel.ISupportInitialize).BeginInit()
       Me.SuspendLayout()
       "
       "Button1
       "
       Me.Button1.Location = New System.Drawing.Point(35, 289)
       Me.Button1.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       Me.Button1.Name = "Button1"
       Me.Button1.Size = New System.Drawing.Size(171, 29)
       Me.Button1.TabIndex = 0
       Me.Button1.Text = "Read Access"
       Me.Button1.UseVisualStyleBackColor = True
       "
       "DataGridView1
       "
       Me.DataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize
       Me.DataGridView1.Location = New System.Drawing.Point(16, 15)
       Me.DataGridView1.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       Me.DataGridView1.Name = "DataGridView1"
       Me.DataGridView1.RowTemplate.Height = 23
       Me.DataGridView1.Size = New System.Drawing.Size(503, 266)
       Me.DataGridView1.TabIndex = 1
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(8.0!, 15.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(535, 332)
       Me.Controls.Add(Me.DataGridView1)
       Me.Controls.Add(Me.Button1)
       Me.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       CType(Me.DataGridView1, System.ruponentModel.ISupportInitialize).EndInit()
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents Button1 As System.Windows.Forms.Button
   Friend WithEvents DataGridView1 As System.Windows.Forms.DataGridView

End Class</source>

Read data in SqlServer to DataGridView

<source lang="vbnet">Imports System.Data.SqlClient Imports System.Data Imports System.Windows.Forms public class ReadDataFromSqlServer

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       ""Dim sConnString As String = "server=vs-lv;uid=sa;pwd=;database=Northwind"
       Dim ConnString As String = "Data Source=vs-lv;Initial Catalog=Northwind;Integrated Security=True"
       Dim SQLString As String = "SELECT * FROM Customers"
       Dim SqlDataAdapter1 As New SqlDataAdapter(SQLString, ConnString)
       Dim DataSet1 As New DataSet()
       SqlDataAdapter1.Fill(DataSet1, "Customers")
       DataGridView1.DataSource = DataSet1.Tables("Customers")
   End Sub

End Class <Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       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.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.Button1 = New System.Windows.Forms.Button
       Me.DataGridView1 = New System.Windows.Forms.DataGridView
       CType(Me.DataGridView1, System.ruponentModel.ISupportInitialize).BeginInit()
       Me.SuspendLayout()
       "
       "Button1
       "
       Me.Button1.Location = New System.Drawing.Point(35, 289)
       Me.Button1.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       Me.Button1.Name = "Button1"
       Me.Button1.Size = New System.Drawing.Size(229, 29)
       Me.Button1.TabIndex = 0
       Me.Button1.Text = "Read SQL Server 2000"
       Me.Button1.UseVisualStyleBackColor = True
       "
       "DataGridView1
       "
       Me.DataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize
       Me.DataGridView1.Location = New System.Drawing.Point(16, 15)
       Me.DataGridView1.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       Me.DataGridView1.Name = "DataGridView1"
       Me.DataGridView1.RowTemplate.Height = 23
       Me.DataGridView1.Size = New System.Drawing.Size(503, 266)
       Me.DataGridView1.TabIndex = 1
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(8.0!, 15.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(535, 332)
       Me.Controls.Add(Me.DataGridView1)
       Me.Controls.Add(Me.Button1)
       Me.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
       Me.Name = "Form1"
       Me.Text = "Form1"
       CType(Me.DataGridView1, System.ruponentModel.ISupportInitialize).EndInit()
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents Button1 As System.Windows.Forms.Button
   Friend WithEvents DataGridView1 As System.Windows.Forms.DataGridView

End Class</source>