【机房重构】——增删改查（三）

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【改】

UI层

Entity.StuInfo stu = new Entity.StuInfo();

stu.UserID = txtUserID.Text.Trim();
stu.UserName = txtUserName.Text;
stu.Sex = cmbSex.Text;
stu.Department = cmbDepartment.Text;
stu.Grade = cmbGrade.Text;
stu.Class = txtClass.Text;
stu.state = cmbState.Text;
stu.Password = txtPassword.Text;

Facade.StuFacade facade = new Facade.StuFacade();

bool updateStuInfo = facade.updateStuInfo(stu);

门面层

    public class StuFacade
    {
        public bool updateStuInfo(Entity.StuInfo stu)
        {
            BLL.StuBLL stuBll = new StuBLL();
            bool flag = stuBll.updateStuInfo(stu);
            return flag;
        }
    }

BLL层

    public class StuBLL
    {        
        public bool updateStuInfo(Entity.StuInfo stu)
        {
            Factory.LoginFactory fact = new Factory.LoginFactory();
            IDAL.StuIDAL idal = fact.Student();
            int result = idal.updateStuInfo(stu);
            bool flag;
            if (result == 0)
            {
                flag = false;
            }
            else
            {
                flag = true;
            }
            return flag;
        }
    }

工厂层

    public class LoginFactory
    {
        public IDAL.StuIDAL Student()
        {
            string ClassName = strDB + "." + "StuDAL";
            return (IDAL.StuIDAL)Assembly.Load(strDB).CreateInstance(ClassName);
        }
    }

IDAL层

    public interface StuIDAL
    {
        int updateStuInfo(Entity.StuInfo stu);
    }

DAL层

    public class StuDAL:IDAL.StuIDAL
    {
        public int updateStuInfo(Entity.StuInfo stu)
        {
            SqlHelper sqlHelper = new SqlHelper();
            string sql = "UPDATE studentInfo SET UserName=@username,Sex=@sex,Department=@department,Grade=@grade,state=@state,Password=@password,Class=@class WHERE UserID=@userid";
            SqlParameter[] sqlParamters ={
                                            new SqlParameter ("@userid",stu.UserID),
                                            new SqlParameter("@username",stu.UserName),
                                            new SqlParameter("@sex",stu.Sex),
                                            new SqlParameter("@department",stu.Department),
                                            new SqlParameter("@grade",stu.Grade),
                                            new SqlParameter("@state",stu.state),
                                            new SqlParameter("@password",stu.Password),
                                            new SqlParameter("@class",stu.Class)
                                        };
            int result = sqlHelper.ExecuteNonQuery(sql, sqlParamters, CommandType.Text);
            return result;
        }
    }