在MVC中将值从Controller传递到View [英] Passing value from Controller to View in MVC

问题描述

我有一个使用数据支架生成的视图.该视图具有文本字段:

I have a view that was generated using data scaffolding. The view has a textfield:

创建视图:

     <div class="form-group">
        @Html.LabelFor(model => model.GroupId, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.GroupId, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.GroupId, "", new { @class = "text-danger" })
        </div>
    </div>

我想将一个值从控制器传递到此文本字段.而且我做了以下工作，但这似乎行不通.

I'd like to pass a value from a controller to this textfield. And I did the following, which doesn't seem to work.

控制器:

    public ActionResult Create(int id)
    {
        ViewBag.GroupId = id;
        Debug.WriteLine("DEBUG: "+id);
        return View();
    }

推荐答案

您可以通过使用ViewBag像现在一样存储GroupId来做到这一点，但是由于视图使用模型，可能会更好往那边走吧.

You could do this by using the ViewBag to store GroupId as you currently are, but as your view is using a model, it may be better to go that way instead.

因此您将拥有:

型号:

public class GroupModel
{
    public int GroupId { get; set; }
}

控制器:

public ActionResult Create(int id)
{
    var model = new GroupModel();
    model.GroupId = id

    return View(model);
}

然后在视图顶部引用模型:

At the top of your view, you would then reference your model:

@model GroupModel

然后您可以按照脚手架完成的操作，使用类似model.GroupId的代码在视图中访问模型.

You can then access the model in the view using code like model.GroupId as per the scaffolding has done.

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