QI want to display queried records from SQl Server which are in a table with custom column headers. How can I do it ?

My querying function is as below

```
        private DataTable GetRecords(int QID, DateTime FromDate, DateTime ToDate)
    {
        SqlConnection myConn = new SqlConnection(ConfigurationManager.ConnectionStrings["CONNSTRING"].ConnectionString);

        // Create the command and set its properties.
        SqlCommand command = new SqlCommand();
        command.Connection = myConn;
        command.CommandText = "sp_GetRecords";
        command.CommandType = CommandType.StoredProcedure;

        // Add the input parameter and set its properties.
        SqlParameter parameter1 = new SqlParameter();
        parameter1.ParameterName = "@QID";
        parameter1.SqlDbType = SqlDbType.Int; 
        parameter1.Direction = ParameterDirection.Input;
        parameter1.Value = QID;

        SqlParameter parameter2 = new SqlParameter();
        parameter2.ParameterName = "@FromDate";
        parameter2.SqlDbType = SqlDbType.DateTime;
        parameter2.Direction = ParameterDirection.Input;
        parameter2.Value = FromDate;

        SqlParameter parameter3 = new SqlParameter();
        parameter3.ParameterName = "@ToDate";
        parameter3.SqlDbType = SqlDbType.DateTime;
        parameter3.Direction = ParameterDirection.Input;
        parameter3.Value = ToDate;
        // Add the parameter to the Parameters collection. 
        command.Parameters.Add(parameter1);
        command.Parameters.Add(parameter2);
        command.Parameters.Add(parameter3);
         myConn.Open();
         SqlDataReader GetAgentTransactions = command.ExecuteReader();
         DataTable dt = new DataTable();
         dt.Load(GetAgentTransactions);             
         GetAgentTransactions.Close();
         myConn.Close();
         return dt;

    }

```

To bind and display in datagridview, I have the following on a display button click event.

```
 protected void btnShow_Click(object sender, EventArgs e)
    {
       DataTable table = new DataTable();
       table = GetRecords(1, Convert.ToDateTime(txtFromDate.Text.Trim()), Convert.ToDateTime(txtToDate.Text.Trim()));
       datagridview.DataSource = table;
       datagridview.DataBind();           
    }
       }

```

I want the returned records to be shown under the column headers as Sl. No, Name and Reg. Number. How can I do it ? Please help with a code example.