Create New Text file with Data Entry

Create New Text file With Data Entry In

First We Create New Table With Some Data..

Table Name Is db
Field 1 ->iddb
Field 2 ->name
Field 3 ->salary


#Region "Namespaces"
Imports DAL
Imports System.Linq
Imports System.Threading
Imports System.Data.SqlClient
Imports System.IO
Imports System.Text
#End Region 

Dim i As String = String.Empty
Dim id As String = String.Empty
Dim con As New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=D:\amit\VBDemo\VBDemo\Database1.mdf;Integrated Security=True;User Instance=True")

//This Butten Key Use For A New File Creation And Data Edit
Private Sub CreateFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CreateFile.Click
    'Write Data In Text File
        id = TXTDBID.Text
        If i = "Y" Then
            Dim dt As DataTable = New DataTable
            Dim cmd As SqlCommand = New SqlCommand
            cmd.Connection = con
            cmd.CommandText = "select * from db where iddb ='" & id & "'"
            cmd.CommandType = CommandType.Text
            Dim da As SqlDataAdapter = New SqlDataAdapter
            da.SelectCommand = cmd
            If dt.Rows.Count > 0 Then
                Dim TextFile As New StreamWriter("D:\" + id + ".txt")
                TextFile.WriteLine("Id : " + dt.Rows(0)(0).ToString()
                TextFile.WriteLine("Name :" + dt.Rows(0)(1).ToString())
                TextFile.WriteLine("Salary :" + dt.Rows(0)(2).ToString())
                MessageBox.Show(id + ".txt Text File created")
            End If
        End If
    Catch ex As IOException
    End Try
End Sub 

//This Function Use For A Creation New Text File
Private Sub CreateFile()
    If File.Exists("d:\" + id + ".txt") The
        MessageBox.Show("File Already Exist")
        i = "N"
        Exit Sub
        Dim file_stream As New FileStream("d:\" + id + ".txt", FileMode.Append)
        i = "Y"
    End If
End Sub