如何在不编写适配器的情况下将 JSON 数据从 MVC 4 传递到 Float

How to pass JSON data from MVC4 to Flot without writing an adapter

我正在为我的 MVC 控制器中的 Jquery flot 生成数据,并希望使用更复杂的结构,以便我能够更改每个条的颜色等。

为此我需要通过 data structure that looks following

{
label: "y = 3",
data: [[0, 3], [10, 3]]
}

当它是简单的数组时,我通过简单地获取数据并像下面那样塑造它来传递数据没有问题

var data = topAgents.Select(agent => new List<object>
        {
            agent.User != null ? string.Format("{0}", agent.User).Replace("SAGANTGB\", "") : null,
            agent.Amount
        }).ToList();

        return Json(data, JsonRequestBehavior.AllowGet);

在javascript侧:

function onAgentDataReceived(series) {
        $("#agents").empty();
        $.plot("#agents", [series], { bars: { show: true, barWidth: 0.6, align: "center" }, xaxis: { mode: "categories", tickLength: 0 } });
    }

但是现在我似乎无法将数据塑造成符合 $.plot 期望的结构。

到目前为止我已经尝试过:

键值对:

var grouped = result.GroupBy(o => o.CREATE_USER_ID).Select(agent => new
                {
                    data = new KeyValuePair<string,int>(
                    agent.Key != null ? string.Format("{0}", agent.Key).Replace("SAGANTGB\", "") : null, agent.Count()
                        ),
                    color = "yellow"
                }).ToList();

具有属性的对象:

var grouped =  result.GroupBy(o => o.CREATE_USER_ID).Select(agent => new
                {
                    data = new { A=
                    agent.Key != null ? string.Format("{0}", agent.Key).Replace("SAGANTGB\", "") : null, B = agent.Count()
                        },
                    color = "yellow"
                }).ToList();

名称值集合

var grouped =    result.GroupBy(o => o.CREATE_USER_ID).Select(agent => new
                {
                    data = new NameValueCollection
                    {{
                        agent.Key != null ? string.Format("{0}", agent.Key).Replace("SAGANTGB\", "") : null,  agent.Count().ToString()}
                    },
                    color = "yellow"
                }).ToList();

匿名对象数组

var grouped = result.GroupBy(o => o.CREATE_USER_ID).Select(agent => new
                {
                    data = new object[] { agent.Key != null ? string.Format("{0}", agent.Key).Replace("SAGANTGB\", "") : null,  agent.Count()},
                    color = "yellow"
                }).ToList();

但是 none 他们飞了

恕我直言简单 data = new object { agent.Key, agent.Count()}, 应该工作,但在构建时失败:Error 16 Invalid anonymous type member declarator. Anonymous type members must be declared with a member assignment, simple name or member access..

我可以在检索数据后在 JS 中重塑数据,但是我想避免这个不必要的步骤。

如何将数据从 MVC 传递到 javascript 而无需在 JS 端重新整形?

写完这道题20分钟,下次再试就成功了

 var grouped =
   result.GroupBy(o => o.CREATE_USER_ID).Select(agent => new
    {
        data = new List<List<object>>
        {
            new List<object>
            {
                agent.Key != null ? string.Format("{0}", agent.Key).Replace("SAGANTGB\", "") : null,
                agent.Count()
            }
        },
        color = "yellow"
    }).ToList();

return Json(grouped, JsonRequestBehavior.AllowGet);

显然您需要将其双重包装在列表中。

忘了说 JS 端不再需要用数组包裹

 $.ajax({
        url: '/dashboard/Home/CancellationAgents/',
        type: "GET",
        dataType: "json",
        success: onCancellationAgentsReceived
    });

    function onCancellationAgentsReceived(series) {
        $("#agentcancellations").empty();
        $.plot("#agentcancellations", series, {
            bars: { show: true, barWidth: 0.7, align: "center" }, xaxis: {mode: "categories", tickLength: 0, position: "bottom"}});
    }

希望这能为您节省一些时间