Saving Contents of TextBoxes

Hi guys,i'm currently writing an application that collects data from users through the use of textboxes.How do i save the data as a CSV file?
Please help in anyway u can,i'm in real need of some help here.

This code goes through all textboxes on the form and adds the text from each textbox to a line to be wrote to file. the line is appended to any previous lines in the csv file

VB Code:

Dim l_sWriter As New StreamWriter("myfile.csv", TRUE)
        Dim l_csvLine As String
 
      
        Try
               Dim l_ctrl As Control 
               For each l_ctrl In me.Controls
                   If Typeof(l_ctrl) is textbox Then
                        l_csvLine &= l_ctrl.text & "," 
                  End IF
               Next
             
 
                'Remove the trailing comma
                l_csvLine = Mid(l_csvLine, 1, l_csvLine.Length - 1)
 
                'Write the data to the file
                l_sWriter.WriteLine(l_csvLine)
                l_csvLine = ""
            End While
 
         
        Catch ex As IOException
            MsgBox(ex.Message, MsgBoxStyle.Information, "ManoWave")
        Finally
            l_sWriter.Close()
        End Try

Thank you for those lines of codes.I'll go work on it !!