Reading from an writing to a text file by omitting specific lines in the read file.

Question

Hi Please find attached a file. Here starting from the first line for each 10 lines I want the next 33 line values to be stored in a text file.I want this to repeat till the end of the file. First 9 lines should be neglected and the next 33 lines should be stored in a file. Could anybody please provide me with the code for this.. -Saketh.

Frogleg · Answer

Try this public void readWriteFile() { int txtLines = File.ReadAllLines(@test.txt).Length; string[] str = new string[txtLines ]; using (StreamReader sr = new StreamReader(test.txt)) { for (int i = 0; i { str[i] = sr.ReadLine(); } using (StreamWriter sw = new StreamWriter(test2.txt)) { for (int i = 9; i { sw.WriteLine(str[i]); } } } } edit here for vb Sub readWriteLine() Dim txtLines As Integer = File.ReadAllLines(test.txt).Length Dim str(txtLines) As String Dim i As Integer = 0 Using sr As New StreamReader(test.txt) Do Until i = txtLines str(i) = sr.ReadLine() i += 1 Loop End Using i = 9 Using sw As New StreamWriter(test2.txt) Do Until i = txtLines sw.WriteLine(str(i)) i += 1 Loop End Using End Sub