ArcGIS Server

动 态 镶 嵌 和 影 像 目 录 ( 继 续 )
• 使 用 QueryTask 对 影 像 目 录 进 行 查 询
QueryTask
FeatureSet
Query
//Define query parameter
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.Geometry = args.Geometry;
query.Where = "Category = 1 order by Name";
query.ReturnGeometry = true;
query.OutSpatialReference = Map.SpatialReference;
query.OutFields.Add("*");
//Create a query task
QueryTask queryTask = new QueryTask(imageserviceUrl);
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
//Excute query task with defined parameters
queryTask.ExecuteAsync(query);