步步为营-93-MVC+EF简单实例

1:创建MVC项目

2:添加EF数据(这里选择DataBaseFirst模式)

3:添加控制器

3.1.1 创建列表页面

3.1.2 html页面

@using MvcApplication1
@{
    ViewBag.Title = "Index";
}


<div>
    <table>
        <tr>
            <th>编号</th>
            <th>用户名</th>
            <th>密码</th>
            <th>详情</th>
        </tr>
        @{
            foreach (var item in (IQueryable<TB_User>)ViewData["UserInfoList"])
            {
                <tr>
                    <td>@item.UserID</td>
                    <td>@item.UserName</td>
                    <td>@item.Password</td>
                    <td><a href="/UserInfo/ShowDetail?id=@item.UserID">详情</a></td>
                </tr>
            }   
        }
    </table>
</div>

3.2.1 详情页面

3.2.2 html页面

@using MvcApplication1
@{
    ViewBag.Title = "ShowDetail";
}

<h2>ShowDetail</h2>
<div>
    @{
        TB_User item = (TB_User)ViewData["UserInfo"];


        <table>
            <tr><td>用户ID         </td> <td>@item.UserID            </td></tr>
            <tr><td>用户的登录ID   </td> <td>@item.UserLoginID       </td></tr>
            <tr><td>密码           </td> <td>@item.Password          </td></tr>
            <tr><td>用户代码       </td> <td>@item.UserCode          </td></tr>
            <tr><td>用户名称       </td> <td>@item.UserName          </td></tr>
            <tr><td>用户类型       </td> <td>@item.UserType          </td></tr>
            <tr><td>电子邮件       </td> <td>@item.Email             </td></tr>
            <tr><td>移动电话       </td> <td>@item.MobilePhone       </td></tr>
            <tr><td>商务电话       </td> <td>@item.BusinessTelephone </td></tr>
            <tr><td>出生日期       </td> <td>@item.BirthDay          </td></tr>
            <tr><td>性别           </td> <td>@item.Gender            </td></tr>
            <tr><td>国籍           </td> <td>@item.Nationality       </td></tr>
            <tr><td>籍贯           </td> <td>@item.NativePlace       </td></tr>
            <tr><td>纸张类型       </td> <td>@item.PaperType         </td></tr>
            <tr><td>论文数         </td> <td>@item.PaperNumber       </td></tr>
            <tr><td>加入日期       </td> <td>@item.JoinDate          </td></tr>
            <tr><td>离开日期       </td> <td>@item.LeaveDate         </td></tr>
            <tr><td>教育类         </td> <td>@item.Education         </td></tr>
            <tr><td>婚姻状况       </td> <td>@item.MaritalStatus     </td></tr>
            <tr><td>银行           </td> <td>@item.Bank              </td></tr>
            <tr><td>银行账户       </td> <td>@item.BankAccount       </td></tr>
            <tr><td>现状           </td> <td>@item.Status            </td></tr>
            <tr><td>造物主         </td> <td>@item.Creator           </td></tr>
            <tr><td>创建日期       </td> <td>@item.CreateDate        </td></tr>
            <tr><td>更新用户       </td> <td>@item.UpdateUser        </td></tr>
            <tr><td>更新日期       </td> <td>@item.UpdateDate        </td></tr>
            <tr><td>EAS用户编码    </td> <td>@item.Eas_UserCode      </td></tr>
            <tr><td>EAS的用户名    </td> <td>@item.Eas_UserName      </td></tr>
            <tr><td>备注           </td> <td>@item.Rank </td></tr>


        </table>
    }
</div>

 3.3.1 删除页面

3.3.2 html页面

@using MvcApplication1
@using MvcApplication1.Common
@{
    ViewBag.Title = "Index";
}
<script type="text/javascript">
    window.onload = function () {
        var deleteClass = document.getElementsByClassName("deleteClass");
        var deleteLength = deleteClass.length;
        for (var i = 0; i < deleteLength; i++) {
            deleteClass[i].onclick = function () {
                if (!confirm("确认要删除吗?")) {
                    return false;
                }
            }
        }
    }
</script>
<link href="~/Css/pageBarStyle.css" rel="stylesheet" />
<div>
    <table>
        <tr>
            <th>编号</th>
            <th>用户名</th>
            <th>密码</th>
            <th>详情</th>
        </tr>
        @{
            foreach (var item in (IQueryable<TB_User>)ViewData["UserInfoList"])
            {
                <tr>
                    <td>@item.UserID</td>
                    <td>@item.UserName</td>
                    <td>@item.Password</td>
                    <td>
                        <a href="/UserInfo/ShowDetail?id=@item.UserID">详情</a>
                        <a href="/UserInfo/Delete?id=@item.UserID" class="deleteClass">删除</a>
                    </td>
                </tr>
            }
        }
        <tr>
            <td>
                @PageBarHelper.GetPageBar((int)ViewData["pageIndex"], (int)ViewData["pageCount"],10)
            </td>
        </tr>
    </table>
    <hr />
    
</div>

 3.4.1 分页功能

效果图:

整体代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace MvcApplication1.Controllers
{
    public class UserInfoController : Controller
    {
        //
        // GET: /UserInfo/
        ZLDC_CostControl_TestEntities db = new ZLDC_CostControl_TestEntities();
        public ActionResult Index()
        {
            //var userInfoList = db.TB_User.Where<TB_User>(u => u.Status==1);
            //ViewData["UserInfoList"] = userInfoList;
            //return View();

            #region 分页
            int pageIndex;//当前页数
            if (!int.TryParse(Request["pageIndex"],out pageIndex))
            {
                pageIndex = 1;
            }
            int recordCount;//总记录数
            recordCount = db.TB_User.Where<TB_User>(u => u.Status == 1).Count();
            int pageSize;//每页多少条
            pageSize=10;
            int pageCount;//总的页数
            pageCount = Convert.ToInt32(Math.Ceiling((double)(recordCount / pageSize)));
            pageIndex = pageIndex < 1 ? 1 : pageIndex;
            pageIndex = pageIndex > pageCount ? pageCount : pageIndex;
            var userInfoList = db.TB_User.Where<TB_User>(u => u.Status == 1).OrderByDescending<TB_User, DateTime>(u => (DateTime)u.CreateDate).Skip<TB_User>((pageIndex-1)*pageSize).Take<TB_User>(pageSize);
            ViewData["UserInfoList"] = userInfoList;
            ViewData["pageIndex"] = pageIndex;
            ViewData["pageCount"] = pageCount;
            return View();
            #endregion
        }
        public ActionResult ShowDetail()
        {
            string userID =Request["id"];
            var userInfo = db.TB_User.Where(u => u.UserID == userID).FirstOrDefault();
            ViewData["UserInfo"] = userInfo;
            return View();
        }
        public ActionResult Delete()
        {
            string userID = Request["id"];
            var userInfo = db.TB_User.Where(u => u.UserID == userID).FirstOrDefault();
            if (userInfo != null)
            {
                userInfo.Status = 0;
                db.Entry<TB_User>(userInfo).State = System.Data.EntityState.Modified;
                if (db.SaveChanges() > 0)
                {
                    return RedirectToAction("Index");
                }
                else {
                    return Content("删除失败! ");                
                }
            }
            else {
                return Content("删除失败! 要删除的数据不存在!");
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;

namespace MvcApplication1.Common
{
      public partial class PageBarHelper
    {
        /// <summary>
        /// 获取底部数字页码显示条
        /// </summary>
        /// <param name="pageIndex">当前页码值</param>
        /// <param name="pageCount">总的页码值</param>
        /// <param name="pageShowCount">需要显示上下几页页码</param>
        /// <returns></returns>
        public static MvcHtmlString GetPageBar(int pageIndex, int pageCount, int pageShowCount)
        {
            string pageBarHtml;
            //假设每次显示10页数据.pageShowCount=10,一共有18页数据
            int start = 0, end = 0;//循环开始页,循环结束页

            if (pageIndex <= pageShowCount / 2 && pageCount >= pageShowCount)
            {
                //当前页码in( 1 2 3)  ==== 1 2 3 4 5 6 7 8 9 10
                start = 1;
                end = start + pageShowCount;
            }
            else if (pageIndex <= pageShowCount / 2 && pageCount < pageShowCount)
            {
                //当前页码in( 1 2 3)  ==== 1 2 3 4 5 
                start = 1;
                end = pageCount + 1;
            }
            else if (pageIndex > pageShowCount / 2 && pageIndex + pageShowCount / 2 <= pageCount)
            {
                //当前页码in(8)  ==== 3 4 5 6 7 8 9 10 11 12 
                start = pageIndex - pageShowCount / 2;
                end = start + pageShowCount;
            }
            else if (pageIndex > pageShowCount / 2 && pageIndex + pageShowCount / 2 > pageCount)
            {
                //当前页码in(16)  ====  9 10 11 12 13 14 15 16 17 18 
                start = pageCount - pageShowCount > 0 ? pageCount - pageShowCount + 1 : 1;
                end = pageCount + 1;
            }
            StringBuilder sb = new StringBuilder();

            if (pageIndex != 1)
            {
                sb.AppendFormat(@"<a href='?pageIndex={0}'>上一页</a>", pageIndex - 1);

            }

            //循环遍历
            for (int i = start; i < end; i++)
            {


                if (i == pageIndex)
                {
                    sb.AppendFormat(@"<a href='#'>{0}</a>", i);
                }
                else
                {
                    sb.AppendFormat(@"<a href='?pageIndex={0}'>{0}</a>", i);
                }


            }
            if (pageIndex != pageCount)
            {
                sb.AppendFormat(@"<a href='?pageIndex={0}'>下一页</a>", pageIndex + 1);

            }
            pageBarHtml = sb.ToString();
            return MvcHtmlString.Create(sb.ToString()); 
        }

    }
}



 

@using MvcApplication1
@using MvcApplication1.Common
@{
    ViewBag.Title = "Index";
}
<script type="text/javascript">
    window.onload = function () {
        var deleteClass = document.getElementsByClassName("deleteClass");
        var deleteLength = deleteClass.length;
        for (var i = 0; i < deleteLength; i++) {
            deleteClass[i].onclick = function () {
                if (!confirm("确认要删除吗?")) {
                    return false;
                }
            }
        }
    }
</script>
<link href="~/Css/pageBarStyle.css" rel="stylesheet" />
<div>
    <table>
        <tr>
            <th>编号</th>
            <th>用户名</th>
            <th>密码</th>
            <th>详情</th>
        </tr>
        @{
            foreach (var item in (IQueryable<TB_User>)ViewData["UserInfoList"])
            {
                <tr>
                    <td>@item.UserID</td>
                    <td>@item.UserName</td>
                    <td>@item.Password</td>
                    <td>
                        <a href="/UserInfo/ShowDetail?id=@item.UserID">详情</a>
                        <a href="/UserInfo/Delete?id=@item.UserID" class="deleteClass">删除</a>
                    </td>
                </tr>
            }
        }
        <tr>
            <td>
                @PageBarHelper.GetPageBar((int)ViewData["pageIndex"], (int)ViewData["pageCount"],10)
            </td>
        </tr>
    </table>
    <hr />
    
</div>