这一节来给大家演示下怎么对用户信息进行修改和删除用户,主要包括以下内容
1.显示所有用户
2.编辑用户
3.删除用户
1.显示所有用户
我们把所有用户信息查询出来,以表格形式在页面上显示,效果图如下:
首先把所有用户信息显示在index页面上.找到index页面对应的controller,然后查找出所有用户信息,把查找出的用户集合放在viewdata里面
Controller代码:
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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(); } |
Index页面代码
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< 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 > |
点击每行数据后面的编辑按钮,转向编辑页面。接下来我们看看编辑页面
2.编辑用户
首先我们看下编辑页面的效果图
点击每行的编辑链接,转向编辑页面,显示当前用户信息。
首先我们看下编辑页面对应的controller:
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/// <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" ); } } |
然后在页面上显示用户信息,在这个地方我们显示页面信息用viewdata来显示。
页面代码
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< form id = "form1" method = "post" action = "/user/edituser?username=<%:ViewData[" 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 > |
提交修改信息
在编辑页面修改完用户信息后,点击提交按钮,会提交用户信息。
我们看下提交对应的controller
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[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); } } |
在提交controller中,我们使用Request.Form获取用户输入的内容。提交成功后,转向INDEX首页。
3.删除用户.
点击删除链接,会根据当前的用户名,转向删除对应的controller
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/// <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" ); |
以上就是Asp.Mvc 2.0用户的编辑与删除实例的实现全过程,希望通过Asp.Mvc 2.0五节内容的学习可以更好地帮助大家掌握Asp.Mvc 2.0基本功能。