Text File Handeling

Hi Every Body...
 I am working on text file in vb.net. text file consists of numbers with out any space. i want to split it 10 characters each set , it is going well but i want to insert record no (N00001) in the begining of each record  and also want to insert T and D  as Time and Date
first 64 characters are information ,

Text file :

110300534D0169202000000000000002030000101200291102101231371005101332231005133225100513333110051339211005133942100513402910051340581005134130100513415310051341551005134221100513433410051351211005154241100515442710051546581005155032100516013110051601331005161032100518033710051215211006145621100814562310081458541008150021100815002310081500391008150053100815005510081501151008150137100815014010081501571008150241100815024210081503281008150348100815034910081504291008150431100815044810081505061008150508100815052410081505371008150539100815055310081506071008150609100815062510081506411008150643100815065910081507321008150749100815075110081508331008150858100815090010081509261008150944100815094610081509581008151032100815104810081510

Requirement :

These are first 64 characters

DataLog Report: 11

SRT-12:31:37-SRD-05/10/10

ERT-12:00:29-ERD-11/02/10

ENCT- 00362 (Total no of record)

TIP-

 

N00001T133223D1005                    T for Time D for Date

N00002T133225D1005

1333311005

1339211005

1339421005

1340291005

1340581005

1341301005

1341531005

1341551005

1342211005

1343341005

1351211005

here is my code

file already opend , i press save menu option and this code create new file, convert it into records  but unable to insert Record no as N00001 ...... n T  D

[code]

Private Sub mnuSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles mnuSave.Click

        Dim myStream As String

        Dim saveFD As New SaveFileDialog()

        Dim total As Integer

        With saveFD

            .Filter = "Text File (*.txt)|*.txt|(*.SRM)|*.SRM|(*.MIT)|*.MIT|All File(*.*)|*.*"

            '.FilterIndex = 1

            .RestoreDirectory = True

            .InitialDirectory = "C:\My Documents"

        End With

        If saveFD.ShowDialog() = DialogResult.OK Then

            myStream = saveFD.FileName()

            'MsgBox(myStream) ' testting what it holds

            Dim stBld As New System.Text.StringBuilder(TxtBox1.Text)

            'MsgBox(stBld.Length()) ' Total no of characters in file

            total = stBld.Length

 

            stBld.Remove(0, 64)

 

            stBld.Remove(stBld.Length - 3, 3)

            ' now loop through the string builder string and use insert command

            'Dim sram(total) As String 'Declare an array tohold data

            'Dim i As Integer ' Declare i for For loop

            'Dim store As String 'Declare store to hold the arry processed data

 

            Dim count As Integer = -2

            Dim temCount As Integer = 0

            'Dim hold As Integer = 0

            Dim replace As String

            Dim dtLog As String

            'Dim totRec As Integer = 0

            'hold = stBld

            replace = TxtBox1.Text.Substring(0, 64)

            dtLog = TxtBox1.Text.Substring(0, 2)

            'Getting Start Time

            Dim sTh As String = TxtBox1.Text.Substring(52, 2)

            Dim sTm As String = TxtBox1.Text.Substring(54, 2)

            Dim sTs As String = TxtBox1.Text.Substring(56, 2)

            ' Getting Start Date

            Dim sDy As String = TxtBox1.Text.Substring(62, 2)

            Dim sDm As String = TxtBox1.Text.Substring(60, 2)

            Dim sDd As String = TxtBox1.Text.Substring(58, 2)

            ' Getting End Time

            Dim eTh As String = TxtBox1.Text.Substring(40, 2)

            Dim eTm As String = TxtBox1.Text.Substring(42, 2)

            Dim ets As String = TxtBox1.Text.Substring(44, 2)

            ' Getting End Date

            Dim eDy As String = TxtBox1.Text.Substring(50, 2)

            Dim eDm As String = TxtBox1.Text.Substring(46, 2)

            Dim eDd As String = TxtBox1.Text.Substring(48, 2)

            'MsgBox(replace) ' Testing purpose only

            Dim i As Integer

          

            Dim hold() As Integer = New Integer(600) {}

            Dim resultRecord As String

            Dim lineNo As Integer

 

            lineNo = 1

            'hold = (numPortion.ToString("00000")) ' in this File each record starts with Time First then Date

            ' Increment each item in the string

           

 

            While count <= stBld.Length

 

                'MsgBox(count)

 

                ' counts 10 characters and insert break /Enter after ten characters

                If temCount = 12 Then

                    stBld.Insert(count, vbCrLf)

 

                    'Rest temCount, so we start searching for next 10 characters

                    temCount = 0

                    ' adding record no  in an array

                    lineNo = lineNo + 1

                    hold(i) = lineNo

                    'MsgBox(hold(i))

                End If

                'MsgBox(temCount)

                temCount = temCount + 1

 

                count = count + 1

 

            End While

 

 

                ' newly edited string

            Dim mainString As String =  stBld.ToString

                Dim val As String

                val = CmbBox.Text

            'MsgBox(lineNo) ' Total No of Records

            For j As Integer = 0 To (hold.Length - 1)

                resultRecord = hold(j)

                'MsgBox(resultRecord)

            Next

            'Now we write back the new string to the file

            Dim objWriter As New System.IO.StreamWriter(myStream)

 

            objWriter.Write("DataLog Report: ")

            objWriter.WriteLine(dtLog)

            objWriter.Write("SRT-")

            objWriter.WriteLine(sTh + ":" + sTm + ":" + sTs + "-SRD-" + sDm + "/" + sDd + "/" + sDy)

            objWriter.WriteLine("ERT-" + eTh + ":" + eTm + ":" + ets + "-ERD-" + eDm + "/" + eDd + "/" + eDy)

            'objWriter.Write(replace)

            objWriter.WriteLine("ENCT- " + lineNo.ToString("00000"))

            'objWriter.WriteLine(hold)

            objWriter.Write("TIP-")

            objWriter.WriteLine(val)

            'objWriter.WriteLine("-------------------")

            objWriter.WriteLine()

            objWriter.Write( mainString + "End of Report")

            objWriter.Close()

               End If

    End Sub

[/code]