MVC：型号缺少局部视图数据 [英] MVC: Model missing data in partial view

问题描述

我使用的是 Telerik的 PanelBar做使用的局部视图一些异步加载。我创建了一个父视图的局部视图的模型，但由于某些原因，我的数据是不是在机智未来通过。

I'm using the Telerik PanelBar to do some asynchronous loading using a partial view. I'm creating a model for the partial view in a parent view, but for some reason my data isn't coming through in tact.

// Parent view
<% Html.Telerik().PanelBar().Name("PanelBar").HtmlAttributes(new { style = "padding-left: 0em;" }).Items(items =>
{
    foreach (var item in Model.Visits)
    {
        SiteVisitDetailModel model = new SiteVisitDetailModel();
        model.URL = item.Key; // this is properly set
        model.Dates = new List<DateTime>(); // this is null in the controller
        model.Dates.Add(DateTime.Now);

        items.Add()
            .Text(item.Key.ToString() + " " + item.Count().ToString() + " visits")
            .LoadContentFrom("SiteViewDetail", "Report", model);

    }
}).Render();



  // Report controller method
    public ActionResult SiteViewDetail(SiteVisitDetailModel model)
    {
        return PartialView(model); // model.URL is correct, model.Dates is null
    }

    // Model
    public class SiteVisitDetailModel
    {
        public String URL
        {
            get;
            set;
        }

        public List<DateTime> Dates
        {
            get;
            set;
        }
    }

正如我的意见，当控制器的SiteVisitDetail方法称为建议的，Model.URL具有正确的数据，以及Model.Dates为空（这不是包含空列表，它本身为空）。这，正如所预料的，也是在局部视图（SiteViewDetail）空。

As suggested by my comments, when the controller's SiteVisitDetail method is called, Model.URL has the correct data, and Model.Dates is null (it's not a list containing null, it itself is null). It, as would be expected, is also null in the partial view (SiteViewDetail).

什么会导致这种行为？

推荐答案

原来正在构建的查询字符串是不正确的。它的产生是这样的：

It turns out the query string being built isn't correct. It's generating something like:

?value1=somevalue&value2=whatever

因此​​，尽管价值是存在的，正确的，它没有得到正确解析，因为放大器;

So while the value is there and correct, it's not getting parsed properly because of that amp;.

我猜这是与Telerik的控制问题。我会报告错误，看看他们怎么说。

I'm guessing this is a problem with the Telerik control. I'll report the bug and see what they say.

由于这似乎是这个问题，我只是将一切连接成一个大的字符串并解析它在控制器，直到一个更正式的办法可以解决。

Since that appears to be the problem, I'm just going to concatenate everything into one big string and parse it in the controller, until a more formal solution can be found.

感谢您的帮助，马亭。

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