foreach grivdviewrows in cells

foreach (GridViewRow gvRowAssigment in GridViewAllAssigments.Rows)
            {
                var emp_assig_ref = new EMPLOYEES_ASSIGMENT_REFERENCE();
                emp_assig_ref.reference_name = gvRowAssigment.Cells[8].ToString();
                emp_assig_ref.reference_id = new Random().Next();

                var emp_assig_teh = new EMPLOYEES_ASSIGMENT_TECHNOLOGY();
                emp_assig_teh.technology_name = gvRowAssigment.Cells[7].ToString();
                emp_assig_teh.assigment_technology_id = new Random().Next();

                var emp_assig_tools = new EMPLOYEES_ASSIGMENT_TOOLS();
                emp_assig_tools.tools_name = gvRowAssigment.Cells[6].ToString();
                emp_assig_tools.assigment_tools_id = new Random().Next();

                var emp_assigment = new EMPLOYEES_ASSIGNMENT
                                        {
                                            from_date = gvRowAssigment.Cells[0].ToString(),
                                            to_date = gvRowAssigment.Cells[1].ToString(),
                                            area = gvRowAssigment.Cells[2].ToString(),
                                            sector = gvRowAssigment.Cells[3].ToString(),
                                            company_name = gvRowAssigment.Cells[4].ToString(),
                                            description = gvRowAssigment.Cells[5].ToString(),


                                            employee_id = emp.employee_id,
                                            assigment_id = new Random().Next(),


                                            EMPLOYEES_ASSIGMENT_TOOLS = emp_assig_tools,

                                            assigment_tools_id = emp_assig_tools.assigment_tools_id,

                                            EMPLOYEES_ASSIGMENT_TECHNOLOGY = emp_assig_teh,
                                            assigment_technology_id = emp_assig_teh.assigment_technology_id,

                                            EMPLOYEES_ASSIGMENT_REFERENCE = emp_assig_ref,
                                            reference_id = emp_assig_ref.reference_id
                                        };


                emp.EMPLOYEES_ASSIGNMENT.Add(emp_assigment);
 }




            db.AddToEMPLOYEES(emp);
            db.SaveChanges();
        }