ESRI.ArcGIS Map加载动态KML

Question

我正在加载ESRI地图和KML层一切正常！

问题：在KML数据更改（经常更改）后，我无法在地图中显示新更改。我需要强制 每次清除浏览器缓存。我尝试刷新该层没有工作。

我的代码

// Create a new KmlLayer object. 
    ESRI.ArcGIS.Client.Toolkit.DataSources.KmlLayer theKmlLayer = new ESRI.ArcGIS.Client.Toolkit.DataSources.KmlLayer(); 

    // Set the KmlLayer's ID. 
    theKmlLayer.ID = "SampleData"; 

    // Set the Url of the KmlLayer. Note the Url takes a Uri object! 
    theKmlLayer.Url = new Uri("localhost/KML/east.kml");//Here is the New KML Data 

    // Need to use a ProxyUrl on the KmlLayer since the service is not hosted locally or on a local network. 
    theKmlLayer.ProxyUrl = "http://serverapps.esri.com/SilverlightDemos/ProxyPage/proxy.ashx"; 

    // Add the KmlLayer to the Map. An automaic refresh of the Map and Legend Controls will occur. 
    Map1.Layers.Add(theKmlLayer); 

我试图theKmlLayer.Refresh（）;

我需要通过代码清除浏览器缓存还是可以加载新的数据？

Answer 1

KML缓存的常用解决方案（以及Google在服务器上缓存数据数小时）是在URL中使用随机或基于时间的缓存清除参数（因此它永远不会相同）。快取破坏参数的

一个例子：

'?dummy=' + (new Date()).getTime());