C# MVC后台传值到前端并显示

约定不等于承诺〃 2022-05-20 08:55 223阅读 0赞

一、通过ViewBag传值：传值可以是字段和list等其他类型

后台代码

ViewBag.Message = "Your application description page.";  
            ViewBag.Message2 = "Your application description page2.";

ViewBag.Message3 = "Your application description page3.";

html页面获取代码：

<h2>ViewBag</h2>  
        <h3>@ViewBag.Title.</h3>  
        <h3>@ViewBag.Message</h3>  
        <h3>@ViewBag.Message2</h3>

<h3>@ViewBag.Message3</h3>

二、通过ViewData：传值可以是字段和list等其他类型

后台代码：

ViewData\["mess1"\] = "测试1";

ViewData\["mess2"\] = "测试2";

List<ZSKObj> zsk = new List<ZSKObj>();

zsk.Add(new ZSKObj \{ZSKDM=1, FLMC="分类1", LXMC="整改措施", MEMO="整改测试1" \});  
            zsk.Add(new ZSKObj \{ ZSKDM = 2, FLMC = "分类2", LXMC = "原因分析", MEMO = "原因分析测试1" \});  
            zsk.Add(new ZSKObj \{ ZSKDM = 3, FLMC = "分类1", LXMC = "整改措施", MEMO = "整改测试2" \});

ViewData\["list"\] = zsk;

HTML页面获取代码：

<h2>ViewData</h2>  
    <h3>@ViewData\["mess1"\]</h3>

<h3>@ViewData\["mess2"\]</h3>

<table class="table table-striped table-bordered">  
            <thead>  
                <tr>  
                    <th>类型</th>  
                    <th>分类</th>  
                    <th>明细</th>  
                    <th>操作</th>  
                </tr>  
            </thead>  
            <tbody>  
                @foreach (var item in ViewData\["list"\] as List<Winning.NQCS.DAL.DataObject.Settings.ZSKObj>)  
                \{  
                    <tr>  
                        <td>@Html.DisplayFor(p => item.FLMC)</td>  
                        <td>@Html.DisplayFor(p => item.LXMC)</td>  
                        <td>@Html.DisplayFor(p => item.MEMO)</td>  
                        <td>@Html.ActionLink("编辑", "UpdateZSK", "ZSK", new \{ zskdm = item.ZSKDM.ToString() \}, null)                         </td>  
                    </tr>  
                \}  
            </tbody>

</table>

三、通过TempData：传值可以是字段和list等其他类型，用法通ViewData

后台代码：

TempData\["Tmptest1"\] = "Tmptest1";

TempData\["Tmptest2"\] = "Tmptest2";

HTML页面获取代码：

<h3>@TempData\["Tmptest1"\]</h3>

<h3>@TempData\["Tmptest2"\]</h3>

四、直接在View中进行返回

后台代码：

List<ZSKObj> zsk = new List<ZSKObj>();  
            zsk.Add(new ZSKObj \{ZSKDM=1, FLMC="分类1", LXMC="整改措施", MEMO="整改测试1" \});  
            zsk.Add(new ZSKObj \{ ZSKDM = 2, FLMC = "分类2", LXMC = "原因分析", MEMO = "原因分析测试1" \});  
            zsk.Add(new ZSKObj \{ ZSKDM = 3, FLMC = "分类1", LXMC = "整改措施", MEMO = "整改测试2" \});  
            ViewData\["list"\] = zsk;

return View(zsk);

HTML页面获取代码：

@\{

ViewBag.Title = "About";  
\}  
@model IEnumerable<Winning.NQCS.DAL.DataObject.Settings.ZSKObj>

<table class="table table-striped table-bordered">  
            <thead>  
                <tr>  
                    <th>类型</th>  
                    <th>分类</th>  
                    <th>明细</th>  
                    <th>操作</th>  
                </tr>  
            </thead>  
            <tbody>  
                @foreach (var item in ViewData\["list"\] as List<Winning.NQCS.DAL.DataObject.Settings.ZSKObj>)  
                \{  
                    <tr>  
                        <td>@Html.DisplayFor(p => item.FLMC)</td>  
                        <td>@Html.DisplayFor(p => item.LXMC)</td>  
                        <td>@Html.DisplayFor(p => item.MEMO)</td>  
                        <td>@Html.ActionLink("编辑", "UpdateZSK", "ZSK", new \{ zskdm = item.ZSKDM.ToString() \}, null) </td>  
                    </tr>  
                \}  
            </tbody>  
        </table>

传递单个对象：

public ActionResult Edit(string id)  
        \{  
            List<UserInfoViewModel> dataList = HttpContext.Session\["TestData"\] as List<UserInfoViewModel>;  
            UserInfoViewModel item = dataList.Find(p => p.UserID.ToString() == id);  
            return View("Detail", item);

html代码：

@model MVC5Demo1.Models.UserInfoViewModel

@Html.HiddenFor(p => p.UserID)  
        <div class="form-group">  
            <label for="txtUserName" class="col-sm-2 control-label">姓名</label>  
            <div class="col-sm-10">  
                @Html.TextBoxFor(p => p.UserName, new \{ @class="form-control", placeholder = "姓名" \})  
            </div>

</div>

五、参照网址：[https://blog.csdn.net/fanbin168/article/details/39758291][https_blog.csdn.net_fanbin168_article_details_39758291]

[https_blog.csdn.net_fanbin168_article_details_39758291]: https://blog.csdn.net/fanbin168/article/details/39758291