Question

我设法从http://kailun92wcf.cloudapp.net/Service1.svc获得了我的wcf服务，但是我需要帮助才能使用它并让xCoord和yCoord在我的地图中绘制它。我设法得到了这个名字，但我仍然坚持从wcf服务中调用xCoord和yCoord。

private void polyc_Checked(object sender, RoutedEventArgs e)
    {
        var service = new Service1Client();

        service.getRecommendPlaceAsync(new getRecommendPlaceRequest { activityId = 2 }); 
        service.getRecommendPlaceCompleted += new EventHandler<MyCloudService.getRecommendPlaceCompletedEventArgs>(RecommendedPlaceRequestComplete);
    }

    void RecommendedPlaceRequestComplete(object sender, MyCloudService.getRecommendPlaceCompletedEventArgs e)
    {
        if (e.Error == null)
        {
            var result = String.Join(",", (from place in e.Result.getRecommendPlaceResult select place.Name).ToArray());
            MessageBox.Show(result);

        }
        else
        {
            MessageBox.Show("An error occured: " + e.Error.Message);
        }

        GraphicsLayer graphicsLayer = map.Layers["polyCoords"] as GraphicsLayer;


        foreach (Classes.Places location in data)
        {

            MapPoint point = new MapPoint(Convert.ToDouble(location.XCoord), Convert.ToDouble(location.YCoord));
            mcp.Add(location);
            ESRI.ArcGIS.Client.Graphic graphic = new ESRI.ArcGIS.Client.Graphic() { Geometry = point, Symbol = PolyMarkerSymbol };
            graphicsLayer.Graphics.Add(graphic);
        }

    }

Answer 1

您可以从

中检索地名的同一组结果中获取坐标列表

而不是

var result = String.Join(",", (from place in e.Result.getRecommendPlaceResult select place.Name).ToArray());

创建一个类结构，例如

public class Points
{
    public decimal XCoordinate { get; set; }
    public decimal YCoordinate { get; set; }
}

然后

 var coordinates = from place in e.Result.getRecommendPlaceResult select new Points {XCoordinate = place.XCoord, YCoordinate = place.YCoord};

坐标现在应该有你的清单。

你可能更喜欢有一个地方列表，比如

var places = from place in e.Result.getRecommendPlaceResult select place;

然后你可以从列表中的元素中获取任何属性

foreach (var place in places)
            {
                MessageBox.Show(string.Format("Place: {0} at {1}, {2}", place.Name, place.XCoord, place.YCoord));
            }

从wcf服务获取坐标

1 个答案: