Faster way of reading csv to grid

Question

I have following in Windows Forms .NET 3.5

It works fine for csv with records less than 10,000 but is slower for records above 30,000. Input csv file can can any re

Answer 1

List rows = File.ReadAllLines("Path").Select(x => x.Split(',')).ToList();
DataTable dt = new DataTable();
dt.Columns.Add("1");
dt.Columns.Add("2");
rows.ForEach(x => {
  dt.Rows.Add(x);
});
dgv.DataSource = dt;

Try that, I suspected that you have some form of column names in the datagrid for now I just made them 1 and 2.

To filter as per your original code use:

List rows = File.ReadAllines("Path").Select(x => x.Split(',')).Where(x => x[0] != "" && x[1] != "").ToList();

To get your columns from the DataGridView

  dt.Columns.AddRange(dgv.Columns.Cast().Select(x => new DataColumn(x.Name)).ToArray());