public void Get**FromDB()
        {
                string query = “condition”
                Proxy.GetListAsync(JsonConvert.SerializeObject(query));
                Proxy.GetListCompleted += new EventHandler<UserOwnWallServiceReference.GetListCompletedEventArgs>(Proxy_GetListCompleted);
            }
        }
        
        void Proxy_GetListCompleted(object sender, UserOwnWallServiceReference.GetListCompletedEventArgs e)
        {
            Deployment.Current.Dispatcher.BeginInvoke(delegate
            {
                if (e.Error == null)
                {
                    _UserOwnWallCollection = JsonConvert.DeserializeObject<ObservableCollection<UserOwnWall>>(e.Result.ToString());
                    InitUserUI();
                }
            });
        }}

 1 public class MouseMoveHelper
 2     {
 3         #region move 
 4         static Point _curPoint;  //当前点
 5         static bool _mouseMoving = false;  //定义是否移动中的布尔变量
 6         public static void MouseButtonUpHandler(object sender, MouseButtonEventArgs e)
 7         {
 8             FrameworkElement element = sender as FrameworkElement;
 9             element.SetValue(CustomCanvasControl.ZIndexProperty, 0);
10             //放开鼠标之后修改变量值
11             _mouseMoving = false;
12             //停止捕捉鼠标位置
13             element.ReleaseMouseCapture();
14             //设置当期X Y坐标为0
15             _curPoint.X = 0;
16             _curPoint.Y = 0;
17             //恢复鼠标指针样式
18             element.Cursor = null;
19         }
20 
21         public static void MouseButtonDownHandler(object sender, MouseButtonEventArgs e)
22         {
23             FrameworkElement element = sender as FrameworkElement;
24             element.SetValue(CustomCanvasControl.ZIndexProperty, 1);
25             //获得当前鼠标的位置
26             _curPoint = e.GetPosition(element.Parent as CustomCanvasControl);
27             //设置开始拖动的值
28             _mouseMoving = true;
29             if (null != element) {
30                 //捕捉鼠标位置
31                 element.CaptureMouse();
32                 element.Cursor = Cursors.Hand;
33             }
34         }
35 
36         public static void MouseMoveHandler(object sender, MouseEventArgs e)
37         {
38             FrameworkElement element = sender as FrameworkElement;
39             if (_mouseMoving) {
40                 try {
41                     double currX = e.GetPosition(element.Parent as CustomCanvasControl).X - _curPoint.X;
42                     double currY = e.GetPosition(element.Parent as CustomCanvasControl).Y - _curPoint.Y;
43 
44                     //得到当前画布的宽度和高度
45                     double currCanvasWidth = (element.Parent as Canvas).ActualWidth;
46                     double currCanvasHeight = (element.Parent as Canvas).ActualHeight;
47 
48                     //得到当前移动目标的宽度高度
49                     double currElementWidth = element.ActualWidth;
50                     double currElementHeight = element.ActualHeight;
51 
52                     if ((currY + (double)element.GetValue(CustomCanvasControl.TopProperty) < 0) ||
53                         (currX + (double)element.GetValue(CustomCanvasControl.LeftProperty) < 0)
54                         || (currY + (double)element.GetValue(CustomCanvasControl.TopProperty) > currCanvasHeight - currElementHeight) ||
55                         (currX + (double)element.GetValue(CustomCanvasControl.LeftProperty) > currCanvasWidth - currElementWidth)) {
56                         //不作任务操作，不移动
57                     } else {
58 
59                         //设置对象坐标
60                         element.SetValue(CustomCanvasControl.TopProperty, currY + (double)element.GetValue(CustomCanvasControl.TopProperty));
61                         element.SetValue(CustomCanvasControl.LeftProperty, currX + (double)element.GetValue(CustomCanvasControl.LeftProperty));
62                     }
63                 } catch { 
64                 }
65             }
66             //保存当前坐标值
67             _curPoint = e.GetPosition(element.Parent as CustomCanvasControl);
68         }
69 
70         #endregion
71     }

JsonConvert.SerializeObject（）

JsonConvert.DeserializeObject<>()

 1 function getUserLocation() {
 2             if (navigator.geolocation) {
 3                 navigator.geolocation.getCurrentPosition(show_map);
 4             } else {
 5                 alert("您的浏览器不支持HTML 5来获取地理位置信息。");
 6             }
 7         }
 8         function show_map(position) {
 9             var latitude = position.coords.latitude;
10             var longitude = position.coords.longitude;
11             callSL(latitude, longitude);
12         }
13 
14         function callSL(latitude, longitude) {
15             var slHost = document.getElementById("SilverlightControl");
16             var page = slHost.Content.FootprintContainer;
17             slHost.Content.FootprintContainer.Process(longitude, latitude);
18         }