VB.Net/Database ADO.net/Data Bind to TextBox

Bind data into TextBox and Navigate using two Buttons

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
   " Declare a binding manager field
   Private bMgr As BindingManagerBase

#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 TextBox1 As System.Windows.Forms.TextBox
   Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
   Friend WithEvents buttonBack As System.Windows.Forms.Button
   Friend WithEvents buttonNext As System.Windows.Forms.Button
   Friend WithEvents DataSet1 As System.Data.DataSet
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
      Me.TextBox1 = New System.Windows.Forms.TextBox
      Me.TextBox2 = New System.Windows.Forms.TextBox
      Me.buttonBack = New System.Windows.Forms.Button
      Me.buttonNext = New System.Windows.Forms.Button
      Me.DataSet1 = New System.Data.DataSet
      CType(Me.DataSet1, System.ruponentModel.ISupportInitialize).BeginInit()
      Me.SuspendLayout()
      "
      "TextBox1
      "
      Me.TextBox1.Location = New System.Drawing.Point(8, 8)
      Me.TextBox1.Name = "TextBox1"
      Me.TextBox1.Size = New System.Drawing.Size(176, 20)
      Me.TextBox1.TabIndex = 0
      Me.TextBox1.Text = "TextBox1"
      "
      "TextBox2
      "
      Me.TextBox2.Location = New System.Drawing.Point(8, 40)
      Me.TextBox2.Name = "TextBox2"
      Me.TextBox2.Size = New System.Drawing.Size(176, 20)
      Me.TextBox2.TabIndex = 1
      Me.TextBox2.Text = "TextBox2"
      "
      "buttonBack
      "
      Me.buttonBack.Location = New System.Drawing.Point(8, 72)
      Me.buttonBack.Name = "buttonBack"
      Me.buttonBack.TabIndex = 2
      Me.buttonBack.Text = "<< Back"
      "
      "buttonNext
      "
      Me.buttonNext.Location = New System.Drawing.Point(112, 72)
      Me.buttonNext.Name = "buttonNext"
      Me.buttonNext.TabIndex = 3
      Me.buttonNext.Text = "Next >>"
      "
      "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(200, 101)
      Me.Controls.Add(Me.buttonNext)
      Me.Controls.Add(Me.buttonBack)
      Me.Controls.Add(Me.TextBox2)
      Me.Controls.Add(Me.TextBox1)
      Me.Name = "Form1"
      Me.Text = "Form1"
      CType(Me.DataSet1, 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)
      " Fill Dataset
      da.Fill(DataSet1, "Employee")
      " Bind to firstname column of the employees table
      TextBox1.DataBindings.Add("text", DataSet1, "Employee.FirstName")
      " Bind to lastname column of the employees table
      TextBox2.DataBindings.Add("text", DataSet1, "Employee.LastName")
      " Create the Binding Manager
      bMgr = Me.BindingContext(DataSet1, "Employee")
   End Sub
   Private Sub buttonNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttonNext.Click
      " Point to the next row and refresh the text box
      bMgr.Position += 1
   End Sub
   Private Sub buttonBack_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttonBack.Click
      " Point to the previous row and refresh the text box
      bMgr.Position -= 1
   End Sub
End Class

Data Binding: TextField

Imports System
Imports System.Data
Imports System.Data.OleDb
Imports System.Data.SqlClient
Imports System.Collections
Imports System.Windows.Forms
Imports System.Resources
Public Class MainClass
    Shared Sub Main()
        Dim form1 As Form = New Form1()
        Application.Run(form1)
    End Sub
End Class

Public Class Form1
    "Form level variables
    Private strConnectionString As String = _
        "Provider=Microsoft.Jet.OLEDB.4.0;" & _
        "Data Source=Employee.mdb;"
    Private objConnection As OleDbConnection
    Private objCommand As OleDbCommand
    Private objDataAdapter As OleDbDataAdapter
    Private objDataTable As DataTable
    Private objDataReader As OleDbDataReader
    Private blnIsLoading As Boolean = True
    Private Sub Form1_Load(ByVal sender As Object, _
        ByVal e As System.EventArgs) Handles Me.Load
        "Initialize the Connection object
        objConnection = New OleDbConnection(strConnectionString)
        "Initialize the Command object
        objCommand = New OleDbCommand("SELECT ID, FirstName " & _
            "FROM Employee", objConnection)
        "Initialize the DataAdapter object and set the SelectCommand property
        objDataAdapter = New OleDbDataAdapter
        objDataAdapter.SelectCommand = objCommand
        "Initialize the DataTable object
        objDataTable = New DataTable
        "Populate the DataTable
        objDataAdapter.Fill(objDataTable)
        "Bind the DataTable to the ComboBox
        ComboBox1.DataSource = objDataTable
        ComboBox1.DisplayMember = "FirstName"
        ComboBox1.ValueMember = "ID"
        "Turn off the loading flag
        blnIsLoading = False
        "Clean up
        objDataAdapter.Dispose()
        objDataAdapter = Nothing
        objCommand.Dispose()
        objCommand = Nothing
        objConnection.Dispose()
        objConnection = Nothing
    End Sub
    Private Sub ComboBox1_SelectedValueChanged(ByVal sender As Object, _
        ByVal e As System.EventArgs) Handles ComboBox1.SelectedValueChanged
        "Exit if the combo box is being loaded
        If blnIsLoading Then
            Exit Sub
        End If
        "Initialize the Connection object and open it
        objConnection = New OleDbConnection(strConnectionString)
        objConnection.Open()
        "Initialize the Command object
        objCommand = New OleDbCommand
        "Set the objCommand object properties
        objCommand.rumandText = "StoreProcedureForEmployee"
        objCommand.rumandType = CommandType.StoredProcedure
        objCommand.Connection = objConnection
        "Add the required parameter for the query
"        objCommand.Parameters.Add("@ID", OleDbType.Guid, 16).Value = _
 "           New Guid(ComboBox1.SelectedValue.ToString)
        objCommand.Parameters.Add("@ID", OleDbType.TinyInt, 8).Value = CInt(ComboBox1.SelectedValue.ToString)
        "Execute the Query
        objDataReader = objCommand.ExecuteReader()
        "If we have data then display the project description
        If objDataReader.HasRows Then
            objDataReader.Read()
            TextBox1.Text = objDataReader.Item("LastName")
        End If
        "Close the DataReader and Connection
        objDataReader.Close()
        objConnection.Close()
        "Clean up
        objDataReader = Nothing
        objCommand.Dispose()
        objCommand = Nothing
        objConnection.Dispose()
        objConnection = Nothing
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads 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.ruboBox1 = New System.Windows.Forms.ruboBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Label2 = New System.Windows.Forms.Label
        Me.SuspendLayout()
        "
        "ComboBox1
        "
        Me.ruboBox1.DropDownStyle = System.Windows.Forms.ruboBoxStyle.DropDownList
        Me.ruboBox1.FormattingEnabled = True
        Me.ruboBox1.Location = New System.Drawing.Point(76, 13)
        Me.ruboBox1.Name = "ComboBox1"
        Me.ruboBox1.Size = New System.Drawing.Size(205, 21)
        Me.ruboBox1.TabIndex = 3
        "
        "Label1
        "
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(13, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(41, 13)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "Projects"
        "
        "TextBox1
        "
        Me.TextBox1.Location = New System.Drawing.Point(76, 44)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(204, 20)
        Me.TextBox1.TabIndex = 5
        "
        "Label2
        "
        Me.Label2.AutoSize = True
        Me.Label2.Location = New System.Drawing.Point(13, 47)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(56, 13)
        Me.Label2.TabIndex = 4
        Me.Label2.Text = "Last Name"
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 76)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.ruboBox1)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents ComboBox1 As System.Windows.Forms.ruboBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
End Class

<A href="http://www.vbex.ru/Code/VBDownload/Employee.zip">Employee.zip( 7 k)</a>

DataView Bind to TextBox

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 TextBox1 As System.Windows.Forms.TextBox
   Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
   Friend WithEvents DataSet1 As System.Data.DataSet
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
      Me.TextBox1 = New System.Windows.Forms.TextBox
      Me.TextBox2 = New System.Windows.Forms.TextBox
      Me.DataSet1 = New System.Data.DataSet
      CType(Me.DataSet1, System.ruponentModel.ISupportInitialize).BeginInit()
      Me.SuspendLayout()
      "
      "TextBox1
      "
      Me.TextBox1.Location = New System.Drawing.Point(8, 8)
      Me.TextBox1.Name = "TextBox1"
      Me.TextBox1.Size = New System.Drawing.Size(200, 20)
      Me.TextBox1.TabIndex = 0
      Me.TextBox1.Text = "TextBox1"
      "
      "TextBox2
      "
      Me.TextBox2.Location = New System.Drawing.Point(8, 32)
      Me.TextBox2.Name = "TextBox2"
      Me.TextBox2.Size = New System.Drawing.Size(200, 20)
      Me.TextBox2.TabIndex = 1
      Me.TextBox2.Text = "TextBox2"
      "
      "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(216, 61)
      Me.Controls.Add(Me.TextBox2)
      Me.Controls.Add(Me.TextBox1)
      Me.Name = "Form1"
      Me.Text = "Form1"
      CType(Me.DataSet1, 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)
      " Fill Dataset and Get Data Table
      da.Fill(DataSet1, "Employee")
      Dim dt As DataTable = DataSet1.Tables("Employee")
      " Create a DataView with Filter and Sort Order
      Dim dv As New DataView(dt, _
         "ID="1"", "FirstName", _
         DataViewRowState.CurrentRows)
      " Bind TextBox1 to FirstName column of the Employees table
      TextBox1.DataBindings.Add("text", dv, "FirstName")
      " Bind TextBox2 to LastName column of the Products table
      TextBox2.DataBindings.Add("text", dv, "LastName")
   End Sub
End Class