I am reading a text file line by line using StreamReader.Readline(). After reading a line i have to check whether some fields of the line which is read are present in the rest of the file or not.
What i am doing is that after reading a line from the file i am passing the streamreader to check whether there are multiple entries. i am trying to use line.Length() to get the length of line, so using this length i can go back to the line
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my code:
Dim pos as Long
sr = File.OpenText(filepath)
While sr.Peek() <> -1
Dim lineRead As String = sr.ReadLine()
Dim res As Boolean = CheckIfMultipleEntries(sr)
pos = -pos
If res Then
// save data from those lines and skip these lines
p += lineRead.Length()
End If
pos = pos + p // go to the line which is after the lines skiped
sr.BaseStream.Seek(pos, SeekOrigin.Current)
End While
Function CheckIfMultipleEntries(ByVal sr1 As StreamReader) As Boolean
pos = 0
While sr1.Peek() <> -1
Dim l As String = sr1.ReadLine()
//check if line is present in the rest of the file
pos += l.Length()
End While
End Function-------------------------------------------------------------------------------------
my problem is that it is not giving me the expected line or it is skipping some part of the line.
any suggestions? how can i return back to my line?