qty,total cost gridview column not insert database

Question

protected void btnSubmit_Click(object sender, EventArgs e)

{

foreach (GridViewRow g1 in GridView1.Rows)

{

SqlConnection con = new SqlConnection(ConStr);

SqlCommand com = new SqlCommand("insert into tblTotal(Product_Name,MRP,Salon_Cost,Qty,Total_Cost) values ('" + g1.Cells[0].Text + "','" + g1.Cells[1].Text + "','" + g1.Cells[2].Text + "','" + g1.Cells[3].Text+ "','" + g1.Cells[4].Text + "')", con);

con.Open();

com.ExecuteNonQuery();

con.Close();

}

}

 

 

this my code. the quantity and total cost enter the run time using jquery but the two column values not insert the database