如何返回字典作为 JsonResult,并在 JavaScript 中获得正确的结果?

发布于 2024-10-04 07:59:32 字数 1094 浏览 4 评论 0原文

我通过向已有的 JsonResult (从不同的方法返回)添加一些额外的信息来在 Controller 中构造我的 JsonResult。为了添加更多属性,我将最初的 JsonResult 转换为字典:

IDictionary<string, object> wrapper = (IDictionary<string, object>)new 
     System.Web.Routing.RouteValueDictionary(json.Data);

然后我只需通过编写 wrapper["..."] = "value" 来添加数据。

该方法返回一个新的 JsonResult,包装器为 .Data:,

new JsonResult() { wrapper, JsonRequestBehavior.AllowGet };

这就是麻烦开始的地方;虽然通信完美进行,并且成功函数被调用,但我在 JavaScript 中使用的结果数组没有我期望的干净结构:而不是像 val = ret.PropName1; 那样访问值必须访问一个简单的索引数组,其中又包含一个包含两对的字典: { "Value"="val, "Key"="PropName1" }; (所以类似于 o[0].Key 会给我属性名称)

我想知道是否有一种智能、快速的方法来重写控制器中的 JsonResult 创建,以便在视图中获得一个干净的字典。 我有几个想法,但它们并不是特别干净:我可以在服务器端放弃 JsonResult 重用,而只创建一个具有所有正确属性的匿名对象;或者,我可以在 Javascript 中创建一个翻译函数,将结果翻译成一个新的 Array()。我正在寻找更好的解决方案。

[稍后编辑] 该数组之所以如此,是因为字典被定义为 。如果它是 ,它将按照我最初期望的方式发送。但由于我实际上使用了该包中的对象,因此我将保持原样,并通过以下函数传递 json 响应。

I'm constructing my JsonResult in Controller by adding some extra information to an already existing JsonResult (returned from a different method). In order to add more properties, I converted the initial JsonResult into a Dictionary:

IDictionary<string, object> wrapper = (IDictionary<string, object>)new 
     System.Web.Routing.RouteValueDictionary(json.Data);

Then I just add data by writing wrapper["..."] = "value".

The method returns a new JsonResult, with wrapper as .Data:

new JsonResult() { wrapper, JsonRequestBehavior.AllowGet };

and that's where the troubles start; while communication happens perfectly, and the success function gets called, the resulting array which I use in JavaScript doesn't have the clean structure I expect: instead of accessing values as val = ret.PropName1; I end up having to access a simple indexed array, which contains in turn a dictionary with two pairs: { "Value"="val, "Key"="PropName1" }; (so something like o[0].Key would give me the property name)

I'd like to know if there's a smart, fast way to rewrite the JsonResult creation in the Controller, to get a nice clean dictionary in the View.
There are a couple of ideas I have, but they aren't particularly clean: I could throw away JsonResult reuse on the server side, and just make an anonymous object with all the right properties; or, I could make a translation function in Javascript which could translate the result into a new Array(). I'm looking for better solutions.

[Later Edit] The array comes the way it does because the dictionary was defined as <string, object>. If it were <string, string>, it would be sent the way I'd originally expect it. But since I actually use objects from that bag, I'll just leave it the way it is, and pass the json response through the below function.

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冷︶言冷语的世界 2024-10-11 07:59:32

附录:在写上面的问题时,我想到“坏”数组和“好”数组之间的转换确实非常简单:

    function translateAjaxResult(ret) {
        var result = new Array();

        if (ret == null) return result;
        for(var i = 0; i < ret.length; i++)
            result[ret[i].Key] = ret[i].Value;
        return result;
    }

尽管如此,它仍然是问题的补丁,而不是问题的修复,所以我'我仍然喜欢更优雅的解决方案。

Addendum: while writing the above question, it occurred to me that the translation between 'bad' array and 'good' array is indeed very simple:

    function translateAjaxResult(ret) {
        var result = new Array();

        if (ret == null) return result;
        for(var i = 0; i < ret.length; i++)
            result[ret[i].Key] = ret[i].Value;
        return result;
    }

Nonetheless, it's still a patch to a problem and not a fix to a problem, so I'd still like a more elegant solution.

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