Go Back   TechArena Community > Software > Software Development
Become a Member!
Forgot your username/password?
Tags Active Topics RSS Search Mark Forums Read

Thread Tools Search this Thread
Old 19-02-2009
Join Date: Aug 2008
Posts: 40
How can I bind textbox with column in SQL database?


I want a little help to bind a textbox of my form to the field in my SQL database!

I am working with VB.NET frameworks! Any example would be helpful!
Reply With Quote
Old 19-02-2009
Join Date: Apr 2008
Posts: 1,948
Re: How can I bind textbox with column in SQL database?

Is this your first project in VB.NET using data from a database?

Try this code:

At the very top of the class (above the Public Class statement, put the
Imports System.Data.Odbc

Now in your subroutine, put:

Dim cn as odbcConnection = new odbcconnection(provider & path to the
Dim sql as string = SELECT * FROM tablename"
Dim cmd as odbcCommand = New odbcCommand(sql,cn)
Dim da as odbcDataAdapter = New odbcDataAdapter
da.SelectCommand = cmd
dim ds as New DataSet

control.DataBindings.Add("Text", ds, "tablename.fieldname")

Now this will automatically set the text of each control to the value in the
database. All you then have to do is code in some kind of record

Hope this helps,
Reply With Quote
Old 19-02-2009
Join Date: Apr 2008
Posts: 2,001
Re: How can I bind textbox with column in SQL database?

You need to learn databinding concepts!


Hope this helps!
Reply With Quote
Old 19-02-2009
Join Date: May 2008
Posts: 2,008
Re: How can I bind textbox with column in SQL database?

Try this:
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()

    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

        '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 = Nothing
        objCommand = Nothing
        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)

        'Initialize the Command object
        objCommand = New OleDbCommand

        'Set the objCommand object properties
        objCommand.CommandText = "StoreProcedureForEmployee"
        objCommand.CommandType = 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
            TextBox1.Text = objDataReader.Item("LastName")
        End If

        'Close the DataReader and Connection

        'Clean up
        objDataReader = Nothing
        objCommand = Nothing
        objConnection = Nothing
    End Sub
End Class

<Global.Microsoft.VisualBasic.CompilerServices.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
        End If
    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.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.ComboBox1 = New System.Windows.Forms.ComboBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Label2 = New System.Windows.Forms.Label
        Me.ComboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
        Me.ComboBox1.FormattingEnabled = True
        Me.ComboBox1.Location = New System.Drawing.Point(76, 13)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(205, 21)
        Me.ComboBox1.TabIndex = 3
        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"
        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
        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"
        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.Name = "Form1"
        Me.Text = "Form1"

    End Sub
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    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
Reply With Quote

  TechArena Community > Software > Software Development
Tags: , ,

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads for: "How can I bind textbox with column in SQL database?"
Thread Thread Starter Forum Replies Last Post
Excel/VBA: Copying text from UserForm Textbox to a Worksheet Textbox Neil Ives Software Development 2 20-08-2010 01:23 AM
operation column positions in database afidelino Software Development 5 24-02-2010 11:42 PM
Is it possible to insert value of TextBox into Sql database using C sharp? Sarfaraj Khan Software Development 5 05-01-2010 11:58 AM
How to highlight identical cell value of one column in another column? D_chapple Windows Software 3 09-12-2009 01:11 PM
mysql update column with another column Gunter Software Development 3 23-05-2009 09:44 AM

All times are GMT +5.5. The time now is 02:46 AM.