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C# QueryTask.ExecuteTaskAsync方法代码示例

本文整理汇总了C#中QueryTask.ExecuteTaskAsync方法的典型用法代码示例。如果您正苦于以下问题:C# QueryTask.ExecuteTaskAsync方法的具体用法?C# QueryTask.ExecuteTaskAsync怎么用?C# QueryTask.ExecuteTaskAsync使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在QueryTask的用法示例。


在下文中一共展示了QueryTask.ExecuteTaskAsync方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: MyDrawObject_DrawComplete

        private async void MyDrawObject_DrawComplete(object sender, DrawEventArgs args)
        {
            try
            {
                _myDrawObject.IsEnabled = false;

                if (_cts != null)
                    _cts.Cancel();

                _cts = new CancellationTokenSource();

                QueryTask queryTask =
                      new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1");
                Query query = new Query()
                {
                    Geometry = args.Geometry,
                    ReturnGeometry = true,
                    OutSpatialReference = MyMap.SpatialReference
                };

                QueryResult parcelsToIntersectResult = await queryTask.ExecuteTaskAsync(query, _cts.Token);

                List<Graphic> graphicList = new List<Graphic>();
                graphicList.Add(new Graphic() { Geometry = args.Geometry });
                SimplifyResult simplifiedIntersectGeometryResult = await _geometryService.SimplifyTaskAsync(graphicList, _cts.Token);

                IntersectResult intersectedParcelsResult = await _geometryService.IntersectTaskAsync(parcelsToIntersectResult.FeatureSet.ToList(), simplifiedIntersectGeometryResult.Results[0].Geometry, _cts.Token);

                Random random = new Random();
                foreach (Graphic g in intersectedParcelsResult.Results)
                {
                    SimpleFillSymbol symbol = new SimpleFillSymbol()
                    {
                        Fill = new System.Windows.Media.SolidColorBrush(
                            System.Windows.Media.Color.FromArgb(255, (byte)random.Next(0, 255), (byte)random.Next(0, 255),
                            (byte)random.Next(0, 255))),
                        BorderBrush = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Black),
                        BorderThickness = 1
                    };
                    g.Symbol = symbol;
                    _intersectGraphicsLayer.Graphics.Add(g);
                }
            }
            catch (Exception ex)
            {
                if (ex is ServiceException)
                {
                    MessageBox.Show(String.Format("{0}: {1}", (ex as ServiceException).Code.ToString(), (ex as ServiceException).Details[0]), "Error", MessageBoxButton.OK);
                    return;
                }
            }
        }
开发者ID:konglingjie,项目名称:arcgis-samples-silverlight,代码行数:52,代码来源:IntersectTaskAsync.xaml.cs


注:本文中的QueryTask.ExecuteTaskAsync方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。