从json中的动态键值获取数据

发布于 2024-09-26 00:22:04 字数 807 浏览 1 评论 0原文

要求如下：
我必须从页面获取位置字段。

var input= global.input = document.getElementById("Location");

根据输入从json文件中获取邻域区域并显示在页面上。

我有一个 json 对象，并且必须根据键值（位置）从 json 对象中过滤数据

var inputLocation=input.value;

在我的 javascript 中，如果我使用动态键，则会收到错误。

如果我执行此操作，我可以获得 json 数组 data.Aspen 但我必须从文本字段获取数据，并且它可能会有所不同，因此如果我调用 data.inputLocation... 当我使用 data.(inputLocation.value) 时未定义

，出现以下错误：

XML 过滤器应用于非 XML 值 ({Aspen:[{ID:

{
 "Aspen":[
 {
  "ID":"Bellaire",
  "Name":"Bellaire"
 },
 {
  "ID":"Champions Forest",
  "Name":"Champions Forest"
 },
 {
  "ID":"Highland Village",
  "Name":"Highland Village"
 },
 {
  "ID":"Museum District",
  "Name":"Museum District"
 }
 ]
}

原文

The requirement is following:
I have to get the location field from page.

var input= global.input = document.getElementById("Location");

Get the neighborhood area from the json file based on input and show on the page.

I have a json object and have to filter the data from the json object based on the key value (location)

var inputLocation=input.value;

In my javascript I am getting the error if I use dynamic the key.

I am able to get the json array if I do this data.Aspen but i have to get the data from a text field and it can be different so if I call data.inputLocation... its coming undefined

when i use data.(inputLocation.value) getting the following error :

XML filter is applied to non-XML value ({Aspen:[{ID:

{
 "Aspen":[
 {
  "ID":"Bellaire",
  "Name":"Bellaire"
 },
 {
  "ID":"Champions Forest",
  "Name":"Champions Forest"
 },
 {
  "ID":"Highland Village",
  "Name":"Highland Village"
 },
 {
  "ID":"Museum District",
  "Name":"Museum District"
 }
 ]
}

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梅窗月明清似水 2024-10-03 00:22:04

您可以使用类似数组的语法访问该属性：

data[inputLocation]

如果 inputLocation 设置为 "Aspen"，则与这两行相同：

data["Aspen"]
data.Aspen

You can access the property using array-like syntax:

data[inputLocation]

If inputLocation is set to "Aspen", then it is the same as these two lines:

data["Aspen"]
data.Aspen

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游魂 2024-10-03 00:22:04

从动态 json 对象获取值使用实时货币转换器 REST API 响应

public async Task<JsonResult> ConvertCurrency(float Price, string FromCurrency)
{
    var testcase = FromCurrency + "_USD";
    WebClient web = new WebClient();
    const string ConverterApiURL = "http://free.currencyconverterapi.com/api/v5/convert?q={0}_{1}&compact=ultra&apiKey={{EnterKey}}";
    string url = String.Format(ConverterApiURL, FromCurrency, "USD");

    string response = new WebClient().DownloadString(url);

    var data = (JObject)JsonConvert.DeserializeObject(response);
    dynamic result = data.SelectToken(testcase + ".val").ToString();

    var basePrice = float.Parse(result);

    double exchangeRate = Price * basePrice;
    var responce = Math.Round(exchangeRate, 2);
    return Json(responce, JsonRequestBehavior.AllowGet);
}

get value from dynamic json object Using real time currency converter rest api responce

public async Task<JsonResult> ConvertCurrency(float Price, string FromCurrency)
{
    var testcase = FromCurrency + "_USD";
    WebClient web = new WebClient();
    const string ConverterApiURL = "http://free.currencyconverterapi.com/api/v5/convert?q={0}_{1}&compact=ultra&apiKey={{EnterKey}}";
    string url = String.Format(ConverterApiURL, FromCurrency, "USD");

    string response = new WebClient().DownloadString(url);

    var data = (JObject)JsonConvert.DeserializeObject(response);
    dynamic result = data.SelectToken(testcase + ".val").ToString();

    var basePrice = float.Parse(result);

    double exchangeRate = Price * basePrice;
    var responce = Math.Round(exchangeRate, 2);
    return Json(responce, JsonRequestBehavior.AllowGet);
}

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