DataTable to CSV

private void exportDataTableToCsv(DataTable formattedDataTable, string filename)
{
DataTable toExcel = formattedDataTable.Copy();
HttpContext context = HttpContext.Current;
context.Response.Clear();

foreach (DataColumn column in toExcel.Columns)
{
context.Response.Write(column.ColumnName + ",");
}

context.Response.Write(Environment.NewLine);
foreach (DataRow row in toExcel.Rows)
{
for (int i = 0; i < toExcel.Columns.Count; i++)
{
context.Response.Write(row[i].ToString().Replace(",", string.Empty) + ",");
}

context.Response.Write(Environment.NewLine);
}

context.Response.ContentType = "text/csv";
context.Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + ".csv");
context.Response.End();
}