concatenate sql file using vb.net

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VB

Dim objReader As StreamReader
        Dim objWriter As StreamWriter
        Dim i As Integer = 0
        Dim LineIn As String
        
        Try
           
          
            For i = 0 To mFileName.Length - 1
                objReader = File.OpenText(mFileName(i))
                objWriter = New IO.StreamWriter(FilePATH1 & "\" & TextBox1.Text & ".sql", True)
                'here it will write all files in Test.sql

                While objReader.Peek <> -1
                    LineIn = objReader.ReadLine()
                    objWriter.Write(LineIn & vbNewLine)
                End While
                objWriter.WriteLine("Go")
                objWriter.Close()


            Next
           


        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try

now what my problem if i execute again duplicate data is going to append to destination file...please help me..thanks

Posted 7-Nov-11 19:36pm

s.chiranjeevi

Updated 7-Nov-11 19:41pm

Prerak Patel

v2

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Prerak Patel · Answer 1 · 2011-11-07T19:45:00

First write your file blank. Then append the text.

VB

Dim objReader As StreamReader
Dim objWriter As StreamWriter
Dim i As Integer = 0
Dim LineIn As String

Try
  objWriter = New IO.StreamWriter(FilePATH1 & "\" & TextBox1.Text & ".sql")
  objWriter.WriteLine("")
  objWriter.Close()
  For i = 0 To mFileName.Length - 1
    objReader = File.OpenText(mFileName(i)) 'here it will write all files in Test.sql
    objWriter = New IO.StreamWriter(FilePATH1 & "\" & TextBox1.Text & ".sql", true)
      While objReader.Peek <> -1
        LineIn = objReader.ReadLine()
        objWriter.Write(LineIn & vbNewLine)
      End While
    objWriter.WriteLine("Go")
    objWriter.Close()
  Next
Catch ex As Exception
  MessageBox.Show(ex.Message)
End Try