Asp.Mvc 2.0用户的编辑与删除实例讲解(5)

public ActionResult Index() 
    { 
      //查询出所有用户 
      DataSet ds = new Models.SqlHelper().GetAllUsers(); 
      if (ds!=null&&ds.Tables[0].Rows.Count>0) 
      { 
        List<Models.UserModels> lists = new List<Models.UserModels>(); 
 
        for (int i = 0; i < ds.Tables[0].Rows.Count; i++) 
        { 
          Models.UserModels model = new Models.UserModels(); 
          model.UserName = ds.Tables[0].Rows[i]["UserName"].ToString(); 
          model.UserPwd = ds.Tables[0].Rows[i]["UserPwd"].ToString(); 
          model.Email = ds.Tables[0].Rows[i]["Email"].ToString(); 
          lists.Add(model); 
        } 
        if (lists.Count>0) 
        { 
          ViewData["users"] = lists; 
        } 
 
      } 
       
      return View(); 
    } 

<table style="border-bottom-width:1px;"> 
   <tr> 
    <td>用户名</td> 
     <td>密码</td> 
     <td>邮箱</td> 
      <td>编辑</td> 
      <td>删除</td> 
   </tr> 
   <%foreach (var item in (ViewData["users"] as IEnumerable<MvcLogin.Models.UserModels>) ) 
    {%> 
      <tr> 
        <td> 
         <%:item.UserName %> 
        </td> 
        <td><%:item.UserPwd %></td> 
         
        <td><%:item.Email %></td> 
 
        <td>编辑 <%:Html.ActionLink("编辑", "EditUser","user",new { userName=item.UserName},null)%></td> 
        <td><%:Html.ActionLink("删除", "DelUser", "user", new { userName=item.UserName},null)%></td> 
      </tr> 
   <% } %> 
 
 </table> 

/// <summary> 
    /// 转向编辑页面 
    /// </summary> 
    /// <param name="userName"></param> 
    /// <returns></returns> 
    public ActionResult EditUser(string userName) 
    { 
      //根据用户名获取用户信息 
      DataSet ds = new Models.SqlHelper().GetSingleUser(userName); 
      if (ds != null && ds.Tables[0].Rows.Count > 0) 
      { 
        ViewData["username"] = ds.Tables[0].Rows[0]["username"].ToString(); 
        ViewData["userPwd"] = ds.Tables[0].Rows[0]["userpwd"].ToString(); 
        ViewData["email"] = ds.Tables[0].Rows[0]["email"].ToString(); 
        return View("edituser"); 
      } 
      else 
      { 
        return View("error"); 
      } 
    } 

<form id="form1" method="post" action="/user/edituser"username"].ToString() %>"> 
  <div> 
  修改用户信息 
    <table class="style1"> 
      <tr> 
        <td class="style2"> 
          </td> 
        <td class="style3"> 
          </td> 
        <td> 
          </td> 
      </tr> 
      <tr> 
        <td class="style2"> 
          用户名：</td> 
        <td class="style3"> 
         <input type="text" id="txtUserName" name="txtUserName" disabled="disabled" value="<%:ViewData["username"].ToString() %>" /> 
           
          </td> 
        <td> 
          </td> 
      </tr> 
      <tr> 
        <td class="style2"> 
          密码：</td> 
        <td class="style3"> 
          <input type="text" id="txtUserPwd" name="txtUserPwd"   value="<%:ViewData["userPwd"].ToString() %>"/> 
          </td> 
        <td> 
          </td> 
      </tr> 
      <tr> 
        <td class="style2"> 
          邮箱:</td> 
        <td class="style3"> 
          <input type="text" id="txtemail" name="txtemail" value="<%:ViewData["email"].ToString() %>" /> 
          </td> 
        <td> 
          </td> 
      </tr> 
      <tr> 
        <td class="style2"> 
          </td> 
        <td class="style3"> 
          <input id="Button1" type="submit" value="提交" /></td> 
        <td> 
          </td> 
      </tr> 
    </table> 
   
 
  <%if (ViewData["errMsg"] != null) 
   {%> 
    <%:ViewData["errMsg"].ToString()%> 
  <%} %> 
  </div> 
 
  </form> 

[HttpPost] 
    public ActionResult EditUser() 
    { 
      string userName = Request.QueryString["UserName"].ToString(); 
      string userPwd = Request.Form["txtUserPwd"].ToString(); 
      string email = Request.Form["txtemail"].ToString(); 
 
      if (userName == "" || userPwd == "") 
      { 
        ViewData["errMsg"] = "用户名和密码不能为空"; 
        return EditUser(userName); 
      } 
      else 
      {  
        //更新数据库 
       bool result=new Models.SqlHelper().UpdateUser(userName, userPwd, email); 
 
       if (result) 
       { 
         //转向主页 
         DataSet ds = new Models.SqlHelper().GetAllUsers(); 
         if (ds != null && ds.Tables[0].Rows.Count > 0) 
         { 
           List<Models.UserModels> lists = new List<Models.UserModels>(); 
 
           for (int i = 0; i < ds.Tables[0].Rows.Count; i++) 
           { 
             Models.UserModels model = new Models.UserModels(); 
             model.UserName = ds.Tables[0].Rows[i]["UserName"].ToString(); 
             model.UserPwd = ds.Tables[0].Rows[i]["UserPwd"].ToString(); 
             model.Email = ds.Tables[0].Rows[i]["Email"].ToString(); 
             lists.Add(model); 
           } 
           if (lists.Count > 0) 
           { 
             ViewData["users"] = lists; 
           } 
 
         } 
         return View("index"); 
       } 
       else 
       { 
         ViewData["errMsg"] = "更新失败"; 
         return EditUser(userName); 
        
       } 
        
 
       
      } 

/// <summary> 
    /// 删除用户 
    /// </summary> 
    /// <param name="userName"></param> 
    /// <returns></returns> 
    public ActionResult DelUser(string userName) 
    { 
      bool result = new Models.SqlHelper().DelUser(userName); 
 
      DataSet ds = new Models.SqlHelper().GetAllUsers(); 
      if (ds != null && ds.Tables[0].Rows.Count > 0) 
      { 
        List<Models.UserModels> lists = new List<Models.UserModels>(); 
 
        for (int i = 0; i < ds.Tables[0].Rows.Count; i++) 
        { 
          Models.UserModels model = new Models.UserModels(); 
          model.UserName = ds.Tables[0].Rows[i]["UserName"].ToString(); 
          model.UserPwd = ds.Tables[0].Rows[i]["UserPwd"].ToString(); 
          model.Email = ds.Tables[0].Rows[i]["Email"].ToString(); 
          lists.Add(model); 
        } 
        if (lists.Count > 0) 
        { 
          ViewData["users"] = lists; 
        } 
 
      } 
      return View("index");