Comments by Robin Saini (Top 1 by date)

var values = GetAllLines();



foreach (var item in values.FirstOrDefault())
{
if (!dt.Columns.Contains(item))
dt.Columns.Add(item);
}
var allvalues = values.Skip(1).ToList();
for (int i = 0; i < allvalues.Count; i++)
{
dt.Rows.Add(allvalues[i].Take(dt.Columns.Count).ToArray());
}
gridView.DataSource = dt;
gridView.DataBind();