How do Update In GridView Asp.Net

protectedvoid GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
 {
string prod_id = GridView1.Rows[e.RowIndex].Cells[0].Text;
string prod_title = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text;
string prod_price = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
string prod_Qty = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text;
string prod_imgpath = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text;
string prod_desc = ((TextBox)GridView1.Rows[e.RowIndex].Cells[5].Controls[0]).Text;
string prod_isenabled = ((TextBox)GridView1.Rows[e.RowIndex].Cells[6].Controls[0]).Text;
string prod_isdeleted = ((TextBox)GridView1.Rows[e.RowIndex].Cells[7].Controls[0]).Text;
AddNewRecord(prod_id, prod_title, prod_price, prod_Qty, prod_imgpath, prod_desc, prod_isenabled, prod_isdeleted, true);
GridView1.EditIndex = -1;
BindGridView();
}