how to sort serial no inside gridview
                            
                         
                        
                     
                 
                
                    Hi
I am having datagridview in c#
I populated data inside datagridview.
I created Serial No inside datagridview along with other columns.
If i click serial no head,the serial no is sorted.
If i do sorting in other columns,the serial no is also sorted.
How to avoid sorting serial no, if I click other column headers.
I have given the code below
 
 dsstock = new DataSet();
 dsstock = fetchDataSetValues(statement);
 // grdStock.Rows.Clear();
 if (dsstock.Tables[0].Rows.Count > 0)
 {
 grdStock.Columns.Add("Sl. No.", "Sl. No.");
 grdStock.Columns[0].Width = 80;
 
 grdStock.Columns.Add("ItemID", "Item ID");
 grdStock.Columns[1].Width =300;
 grdStock.Columns.Add("ItemName", "Item Name");
 grdStock.Columns[2].Width = 600;
 grdStock.Columns.Add("ItemQuantity", "Item Quantity");
 grdStock.Columns[3].Width = 150;
 int row = dsstock.Tables[0].Rows.Count - 1;
 for (int r = 0; r <= row; r++)
 {
 grdStock.Rows.Add();
 grdStock.Rows[r].Cells[0].Value = r + 1;
 grdStock.Rows[r].Cells[1].Value = dsstock.Tables[0].Rows[r].ItemArray[0];
 grdStock.Rows[r].Cells[2].Value = dsstock.Tables[0].Rows[r].ItemArray[1];
 grdStock.Rows[r].Cells[3].Value = dsstock.Tables[0].Rows[r].ItemArray[2];
 }
 }
Thanks
Chandran