在.NET CORE中将数据从视图传递到部分视图 [英] Passing Data from View to Partial in .NET CORE

问题描述

我阅读了此，并尝试在其中实现 ViewDataDictionary 我的应用程序无法正常工作。

I read this and tried to implement the ViewDataDictionary in my app but did not work.

在我看来，我的代码如下：

In my view, I've the below code:

@{
  var myTest = new
            {
                UserId = "cdb86aea-e3d6-4fdd-9b7f-55e12b710f78",
                UserName = "iggy",
            }; 

}
@Html.Partial("~/Partials/test.cshtml", myTest)

和 test.cshtml 非常简单，当我编写 @Model 时，我得到 {UserId = cdb86aea-e3d6-4fdd-9b7f-55e12b710f78，UserName = iggy}

and the test.cshtml is very simple, when I write @Model, I get { UserId = cdb86aea-e3d6-4fdd-9b7f-55e12b710f78, UserName = iggy }

我如何将其提取为JSON，这样我就可以读取 @ Model.UserName

How can I extract this as JSON, so I can read @Model.UserName

我尝试使用：

<script type="text/javascript">
@
   {
      <text>
            var obj = JSON.parse(@Model);
      </text>
   }
</script>

并尝试：

<script type="text/javascript">
      @:var obj = JSON.parse(@Model);
</script>

并尝试：

@Html.Raw(Json.Encode(object))

但没有任何作用

but nothing worked, any help!!

推荐答案

当我将.net应用程序转换为.net核心时遇到了类似的问题。
在.net中，我只需在控制器中 返回Json（jsonModel） ，然后在我的视图中将其用作 data.UserID ， data.UserName （请参见下面的代码，以使其与示例匹配）。
在.net核心中，我必须首先在控制器中使用SerializeObject，然后在视图javascript部分中使用JSON.parse使其起作用。

I came across similar problem when I was converting my .net application into .net core. In .net I could just return Json(jsonModel) in my controller and use it in my view as data.UserID, data.UserName (see code below adjusted to match your sample). In .net core I had to SerializeObject in my controller first and then use JSON.parse in the view javascript section to make it work.

以下工作原理在.NET CORE中。假设您有某种模型：

The following works in .NET CORE. Assuming you have some model:

public class SomeModel
{
    public string UserId { get; set; }
    public string UserName { get; set; }
}

在您的控制器中返回Json对象：

in your controller return Json object:

using Newtonsoft.Json;

[HttpPost]        
public IActionResult someAction()
{
    SomeModel jsonModel = new SomeModel();
    jsonModel.UserId = "cdb86aea-e3d6-4fdd-9b7f-55e12b710f78";
    jsonModel.UserName = "iggy";

    var serializedJsonModel = JsonConvert.SerializeObject(jsonModel);
    return Json(serializedJsonModel);
 }

，然后在视图javascript部分中可以从模型中检索值：

and in your view javascript section you can retrieve values from your model:

<script type="text/javascript">
   $.post("@Url.Action("someAction", "YourController")", 
        function (data) { 
            var oJson = JSON.parse(data);
            UserId = oJson.UserId;
            UserName = oJson.UserName; });
</script>

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