How do I get StreamReader.ReadBlock to start at a specific line

[firespinguy]

Hello everyone. I want streamreader.Readblock to start reading a file from a specific line, but I need some help with this. So far I have have the following example code:

        Dim lineposition As Integer = 20
        Dim buffer As Char() = ""
        Dim count As Integer = 256
        Dim dataReader As New StreamReader("C:\lines.txt")
        For i = lineposition To 100

            dataReader.ReadBlock(buffer, i, count)
            'show data 
            MsgBox("Success " & buffer.ToString)

        Next i
        dataReader.Close()

but I recieve the error: "Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection."