C# Read CSV file and Insert In to Data Base

using System.IO;
DataTable dt = new DataTable();
string line = null;
int i = 0;
using (StreamReader sr = File.OpenText(@"c:\t.csv"))
{
while ((line = sr.ReadLine()) != null)
{
string[] data = line.Split(',');
if (data.Length > 0)
{
if (i == 0)
{
foreach (var item in data)
{
dt.Columns.Add(new DataColumn());
}
i++;
}
DataRow row = dt.NewRow();
row.ItemArray = data;
dt.Rows.Add(row);
//GridView1.DataSource = dt;
//GridView1.DataBind();
}
}
}
//Insert in to db
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConsoleApplication3.Properties.Settings.daasConnectionString"].ConnectionString))
{
conn.Open();
using (SqlBulkCopy copy = new SqlBulkCopy(conn))
{
copy.ColumnMappings.Add(0, 0);
copy.ColumnMappings.Add(1, 1);
copy.ColumnMappings.Add(2, 2);
copy.ColumnMappings.Add(3, 3);
copy.ColumnMappings.Add(4, 4);
//Table Name.
copy.DestinationTableName = "Censis";
copy.WriteToServer(dt);
}
}