Skip Reading Specific Number Of Lines (Using StreamReader)

Your issue, I believe relates to the fact that Skip uses defered execution.

(see remarks on the following link)
http://msdn.microsoft.com/en-us/library/bb358985(v=vs.90).aspx[^]

I would suggest breaking the code down a bit:

IEnumerable<string> allines = File.ReadLines(@"Root");
IEnumerable<string> cutDown = alllines.Skip(3).GetEnumerator();
listbox.items.addrange(alllines);

Or you could do:

IEnumerable<string> allines = File.ReadLines(@"Root");
IEnumerable<string> cutDown = alllines.Skip(3);

foreach( string s in cutDown)
{
    listbox.items.add(s);
}

I would add to the correct Solution 1: "skipping" a line means reading it. In this case, this is related to the simple fact that the lines have different length. Before you can access some line, you have to read all the previous lines; before you do it, you cannot really know the position of the next line.

You just need to read lines one by one ignoring some of them. The methods like ReadToEnd or System.IO.File.ReadAllLines may or may not be suitable; not suitable if the file is too big.

—SA

just add .toarray on the end and it works