using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data.Entity.Infrastructure;

using System.Data.Entity;

namespace DAL

{

    public class EF_Help

    {

        DbContext db;  //数据上下文

        /// <summary>

        ///  修改 个别 数据

        /// </summary>

        /// <param name="model">要修改的实体对象</param>

        /// <param name="proNames">要修改的 属性 名称</param>

        /// <returns></returns>

        public int Modify<T>(T model, params string[] proNames) where T : class

        {

            DbEntityEntry entry = db.Entry<T>(model);

            entry.State = EntityState.Unchanged;

            foreach (string proName in proNames)

            {

                entry.Property(proName).IsModified = true;

            }

            db.Configuration.ValidateOnSaveEnabled = false;

            return db.SaveChanges();

        }

        /// <summary>

        ///  修改 多数 数据, 个别数据除外,proNames 不写 则是 修改全部

        /// </summary>

        /// <param name="model">要修改的实体对象</param>

        /// <param name="proNames">不需要要修改的 属性 名称</param>

        /// <returns></returns>

        public int ModifyWithOutproNames<T>(T model, string prymartKey, params string[] proNames) where T : class

        {

            DbEntityEntry entry = db.Entry<T>(model);

            entry.State = EntityState.Unchanged;

            var properties = model.GetType().GetProperties();

            for (int i = ; i < properties.Length; i++)

            {

                if (properties[i].PropertyType.Name.Contains("ICollection")

                    || properties[i].Name == prymartKey

                    || proNames.Contains(properties[i].Name)) continue;// 排除 外面 主键  proNames

                entry.Property(properties[i].Name).IsModified = true;

            }

            db.Configuration.ValidateOnSaveEnabled = false;

            return db.SaveChanges();

        }

        public EF_Help(DbContext dbContext)

        {

            db = dbContext;

        }

    }

}

using System;

using System.Linq;

using System.Net;

using System.Web;

using System.Web.Mvc;

using KT_Product_Show_Market.Areas.Account.Models;

using Newtonsoft.Json;

using EntityFramework.Extensions;

using System.Collections;

namespace KT_Product_Show_Market.Areas.Account.Controllers

{

    public class UserController : Controller

    {

        public UserController()

        {

            ef_Help = new DAL.EF_Help(db);

        }

        KT_Product_MarketEntities db = new KT_Product_MarketEntities();

        DAL.Custom_Expression CE = new DAL.Custom_Expression();

        DAL.EF_Help ef_Help;

        [HttpPost]

        [ActionName("Edit")]

        public int Edit_Post(TraderInfo post_model)

        {

            int Temp = ;

            if (string.IsNullOrEmpty(post_model.LoginPassward))

            {

                Temp = ef_Help.ModifyWithOutproNames<TraderInfo>(post_model, "LoginPassward");

            }

            else

            {

                Temp = ef_Help.ModifyWithOutproNames<TraderInfo>(post_model);

            }

            return Temp;

        }

    }

}