[UWP]与Linq的.NET Native Crash [英] [UWP].NET Native Crash with Linq

问题描述

以下行导致我的应用程序崩溃与.NET Native：

The following line cause my app crash with .NET Native:

var transformedPointQuery = trackSeg.Select(x => GetGCJCoord(x.Position));

path = new Geopath（transformedPointQuery）;

path = new Geopath(transformedPointQuery);

其中trackSeg为List< Waypoint>，GetGCJCoord返回BasicGeoposition。

Where trackSeg is List<Waypoint>, and GetGCJCoord returns BasicGeoposition.

Waypoint的定义是：

The definition of Waypoint is:

    class Waypoint : GpxElement
    {
        //time
        public DateTime? Time { get; set; }
        public BasicGeoposition Position { get; set; }
    }

在调试模式下，我收到以下消息：

In debug mode, I got the following message:

（System.Linq.Enumerable.WhereSelectListIterator< Maps.Waypoint，Windows.Devices.Geolocation.BasicGeoposition>）缺少互操作类型编组数据。要启用互操作类型编组数据，请将MarshalObject指令添加到应用程序rd.xml
文件中。有关详细信息，请访问http://go.microsoft.com/fwlink/?LinkID=393965

(System.Linq.Enumerable.WhereSelectListIterator<Maps.Waypoint,Windows.Devices.Geolocation.BasicGeoposition>) is missing interop type marshalling data. To enable interop type marshalling data, add a MarshalObject directive to the application rd.xml file. For more information, please visit http://go.microsoft.com/fwlink/?LinkID=393965

我应该如何处理rd.xml文件？我尝试了所有我能理解的内容，但我对编组没有任何了解。

What should I do to the rd.xml file? I tried all I can understand, but I don't know anything about marshalling.

推荐答案

我解决了这个问题，但我更加困惑。

I solved the problem but I got even more confused.

我将代码更改为以下内容：

I changed the code to the following:

var transformedPointQuery = trackSeg.Select(x => GetGCJCoord(x.Position));
var list = transformedPointQuery.ToArray();
path = new Geopath(list);

然后崩溃不再发生。

Then the crash no longer happens.

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