void dispatcherTimer_Tick(object sender, EventArgs e)
{
_infoWindow.IsOpen = false;
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/4");
Query query = new Query()
{
Geometry = _tapPoint,
OutSpatialReference = MyMap.SpatialReference
};
query.OutFields.Add("NAME");
queryTask.ExecuteCompleted += (s, evt) =>
{
if (evt.FeatureSet.Features.Count > 0)
{
_infoWindow.Anchor = _tapPoint;
(_infoWindow.Content as TextBlock).Text = evt.FeatureSet.Features[0].Attributes["NAME"] as string;
_infoWindow.IsOpen = true;
}
};
queryTask.ExecuteAsync(query);
_dispatcherTimer.Stop();
}
// Query the image service for sample tiles
private async Task QueryImageTiles()
{
try
{
var envelope = await MyMapView.Editor.RequestShapeAsync(DrawShape.Envelope) as Envelope;
var imageLayer = MyMapView.Map.Layers["ImageLayer"] as ArcGISImageServiceLayer;
QueryTask queryTask = new QueryTask(new Uri(imageLayer.ServiceUri));
Query query = new Query(envelope)
{
OutFields = new OutFields(new string[] { "Name", "LowPS" }),
ReturnGeometry = true,
OutSpatialReference = MyMapView.SpatialReference,
Where = "Category = 1"
};
var result = await queryTask.ExecuteAsync(query);
_graphicsOverlay.Graphics.AddRange(result.FeatureSet.Features.OfType<Graphic>());
}
catch (Exception ex)
{
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
}
private void MyDrawSurface_DrawComplete(object sender, ESRI.ArcGIS.Client.DrawEventArgs args)
{
ResultsDisplay.Visibility = Visibility.Collapsed;
MyDrawObject.IsEnabled = false;
selectionGraphicslayer.ClearGraphics();
QueryTask queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
// Bind data grid to query results
Binding resultFeaturesBinding = new Binding("LastResult.Features");
resultFeaturesBinding.Source = queryTask;
QueryDetailsDataGrid.SetBinding(DataGrid.ItemsSourceProperty, resultFeaturesBinding);
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
// Specify fields to return from query
query.OutFields.AddRange(new string[] { "STATE_NAME", "SUB_REGION", "STATE_FIPS", "STATE_ABBR", "POP2000", "POP2007" });
query.Geometry = args.Geometry;
// Return geometry with result features
query.ReturnGeometry = true;
query.OutSpatialReference = MyMap.SpatialReference;
queryTask.ExecuteAsync(query);
}
private async Task initializeComboBox()
{
if (QueryListPicker.ItemsSource != null) // already initialized
return;
// Construct the query to return all features (where clause of "1=1") and only the state name
Query query = new Query("1=1") { ReturnGeometry = false };
query.OutFields.Add("STATE_NAME");
QueryTask queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5"));
try
{
// Do the query
var result = await queryTask.ExecuteAsync(query);
// Make sure results were received
if (result != null && result.FeatureSet != null && result.FeatureSet.Features != null)
{
// Add the states to the list picker, ordered by state name
QueryListPicker.ItemsSource = result.FeatureSet.Features.OrderBy(
x => x.Attributes["STATE_NAME"]);
// Enable the list picker and hide the busy indicator
QueryListPicker.IsEnabled = true;
progress.Visibility = Visibility.Collapsed;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
// Select a set of wells near the click point
private async void MyMapView_MapViewTapped(object sender, MapViewInputEventArgs e)
{
try
{
_wellsOverlay.Graphics.Clear();
wellsGrid.ItemsSource = relationshipsGrid.ItemsSource = null;
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0"));
// Get current viewpoints extent from the MapView
var currentViewpoint = MyMapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
var viewpointExtent = currentViewpoint.TargetGeometry.Extent;
Query query = new Query("1=1")
{
Geometry = Expand(viewpointExtent, e.Location, 0.01),
ReturnGeometry = true,
OutSpatialReference = MyMapView.SpatialReference,
OutFields = OutFields.All
};
var result = await queryTask.ExecuteAsync(query);
if (result.FeatureSet.Features != null && result.FeatureSet.Features.Count > 0)
{
_wellsOverlay.Graphics.AddRange(result.FeatureSet.Features.OfType<Graphic>());
wellsGrid.ItemsSource = result.FeatureSet.Features;
resultsPanel.Visibility = Visibility.Visible;
}
}
catch (Exception ex)
{
var _x = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
}
private async void MyMap_Tapped_1(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e)
{
var mp = MyMap.ScreenToMap(e.GetPosition(MyMap));
Graphic g = new Graphic() { Geometry = mp };
var graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
graphicsLayer.Graphics.Add(g);
var bufferResult = GeometryEngine.Buffer(mp, 100);
var bufferLayer = MyMap.Layers["BufferLayer"] as GraphicsLayer;
bufferLayer.Graphics.Add(new Graphic() { Geometry = bufferResult });
var queryTask = new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2"));
var query = new ESRI.ArcGIS.Runtime.Tasks.Query()
{
ReturnGeometry = true,
OutSpatialReference = MyMap.SpatialReference,
Geometry = bufferResult
};
query.OutFields.Add("OWNERNME1");
try
{
var queryResult = await queryTask.ExecuteAsync(query);
if (queryResult != null && queryResult.FeatureSet != null)
{
var resultLayer = MyMap.Layers["MyResultsGraphicsLayer"] as GraphicsLayer;
resultLayer.Graphics.AddRange(queryResult.FeatureSet.Features);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
private async void RunQuery()
{
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/2"));
Query query = new Query("1=1")
{
GroupByFieldsForStatistics = new List<string> { "sub_region" },
OutStatistics = new List<OutStatistic> {
new OutStatistic(){
OnStatisticField = "pop2000",
OutStatisticFieldName = "subregionpopulation",
StatisticType = StatisticType.Sum
},
new OutStatistic(){
OnStatisticField = "sub_region",
OutStatisticFieldName = "numberofstates",
StatisticType = StatisticType.Count
}
}
};
try
{
var result = await queryTask.ExecuteAsync(query);
if (result.FeatureSet.Features != null && result.FeatureSet.Features.Count > 0)
{
ResultGrid.ItemsSource = result.FeatureSet.Features;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
// Query the image service for sample tiles
private async Task QueryImageTiles()
{
try
{
var envelope = await MyMapView.Editor.RequestShapeAsync(DrawShape.Envelope) as Envelope;
QueryTask queryTask = new QueryTask(
new Uri("http://servicesbeta.esri.com/ArcGIS/rest/services/Portland/PortlandAerial/ImageServer/query"));
Query query = new Query(envelope)
{
OutFields = new OutFields(new string[] { "Name", "LowPS" }),
ReturnGeometry = true,
OutSpatialReference = MyMapView.SpatialReference,
Where = "Category = 1"
};
var result = await queryTask.ExecuteAsync(query);
_graphicsOverlay.Graphics.AddRange(result.FeatureSet.Features.OfType<Graphic>());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Sample Error");
}
}
async void mapView1_Loaded(object sender, RoutedEventArgs e)
{
if (originalGraphicsLayer != null && originalGraphicsLayer.Graphics.Count == 0)
{
QueryTask queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/1"));
Query query = new Query("NAME = 'Mississippi'");
query.ReturnGeometry = true;
query.OutSpatialReference = mapView1.SpatialReference;
var results = await queryTask.ExecuteAsync(query, CancellationToken.None);
foreach (Graphic g in results.FeatureSet.Features)
{
g.Symbol = defaultLineSymbol;
g.Geometry.SpatialReference = mapView1.SpatialReference;
originalGraphicsLayer.Graphics.Add(g);
foreach (var pc in (g.Geometry as Polyline).Paths)
{
foreach (var point in pc)
{
var vertice = new Graphic()
{
Symbol = defaultMarkerSymbol,
Geometry = new MapPoint(point.X, point.Y)
};
originalGraphicsLayer.Graphics.Add(vertice);
}
}
}
GeneralizeButton.IsEnabled = true;
}
}
private void RunQuery()
{
parcelsGraphicsLayer.Graphics.Clear();
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
ReturnGeometry = true,
OutSpatialReference = MyMap.SpatialReference,
Where = string.Format("OWNER_NAME LIKE '%{0}%'", SearchTextBox.Text),
OrderByFields = new List<OrderByField>() { new OrderByField("OWNER_NAME", SortOrder.Ascending) }
};
query.OutFields.Add("OWNER_NAME,PARCEL_ID,ZONING,DEED_DATE");
QueryTask queryTask = new QueryTask("http://sampleserver6.arcgisonline.com/arcgis/rest/services/MontgomeryQuarters/MapServer/1");
queryTask.ExecuteCompleted += (s, a) =>
{
foreach (Graphic g in a.FeatureSet.Features)
{
parcelsGraphicsLayer.Graphics.Add(g);
FeatureListBox.Items.Add(g);
}
(ApplicationBar.Buttons[0] as IApplicationBarIconButton).IsEnabled = true;
FeatureChoicesPage.Visibility = Visibility.Visible;
};
FeatureListBox.Items.Clear();
queryTask.ExecuteAsync(query);
}
private async Task doQuery()
{
// Clear previous results and show busy indicator
ResultsItemsControl.ItemsSource = null;
ProgressBar.Visibility = Visibility.Visible;
// Create task to query for states
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5"));
// Specify query parameters. Query for the inptu text and include all fields in the results
Query query = new Query(StateNameTextBox.Text);
query.OutFields.Add("*");
try
{
// Do the query and update the results
var result = await queryTask.ExecuteAsync(query);
ResultsItemsControl.ItemsSource = result.FeatureSet.Features;
}
catch (TaskCanceledException taskCanceledEx)
{
System.Diagnostics.Debug.WriteLine(taskCanceledEx.Message);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
// Hide busy indicator
ProgressBar.Visibility = Visibility.Collapsed;
}
// Select a set of wells near the click point
private async void mapView_MapViewTapped(object sender, MapViewInputEventArgs e)
{
try
{
_wellsLayer.Graphics.Clear();
wellsGrid.ItemsSource = relationshipsGrid.ItemsSource = null;
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0"));
Query query = new Query("1=1")
{
Geometry = Expand(mapView.Extent, e.Location, 0.01),
ReturnGeometry = true,
OutSpatialReference = mapView.SpatialReference,
OutFields = OutFields.All
};
var result = await queryTask.ExecuteAsync(query);
if (result.FeatureSet.Features != null && result.FeatureSet.Features.Count > 0)
{
_wellsLayer.Graphics.AddRange(result.FeatureSet.Features);
wellsGrid.ItemsSource = result.FeatureSet.Features;
resultsPanel.Visibility = Visibility.Visible;
}
}
catch (Exception ex)
{
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
}
private async Task RunQuery(IGeometry geometry)
{
var l = MyMap.Layers["GraphicsWellsLayer"] as GraphicsLayer;
l.Graphics.Clear();
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0"));
ESRI.ArcGIS.Runtime.Tasks.Query query = new ESRI.ArcGIS.Runtime.Tasks.Query()
{
Geometry = geometry,
ReturnGeometry = true,
OutSpatialReference = MyMap.SpatialReference,
OutFields = OutFields.All
};
try
{
var result = await queryTask.ExecuteAsync(query);
if (result.FeatureSet.Features != null && result.FeatureSet.Features.Count > 0)
{
ResultsGrid.ItemsSource = result.FeatureSet.Features;
l.Graphics.AddRange(from g in result.FeatureSet.Features select g);
}
}
catch (Exception ex)
{
return;
}
}
private async void mapView1_Tapped_1(object sender, Esri.ArcGISRuntime.Controls.MapViewInputEventArgs e)
{
var mp = e.Location;
Graphic g = new Graphic() { Geometry = mp };
var graphicsLayer = mapView1.Map.Layers["MyGraphicsLayer"] as GraphicsLayer;
graphicsLayer.Graphics.Add(g);
var bufferResult = GeometryEngine.Buffer(mp, 100);
var bufferLayer = mapView1.Map.Layers["BufferLayer"] as GraphicsLayer;
bufferLayer.Graphics.Add(new Graphic() { Geometry = bufferResult });
var queryTask = new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2"));
var query = new Query("1=1")
{
ReturnGeometry = true,
OutSpatialReference = mapView1.SpatialReference,
Geometry = bufferResult
};
query.OutFields.Add("OWNERNME1");
try
{
var queryResult = await queryTask.ExecuteAsync(query);
if (queryResult != null && queryResult.FeatureSet != null)
{
var resultLayer = mapView1.Map.Layers["MyResultsGraphicsLayer"] as GraphicsLayer;
resultLayer.Graphics.AddRange(queryResult.FeatureSet.Features);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
// buffer the click point, query the map service with the buffer geometry as the filter and add graphics to the map
private async void mapView_MapViewTapped(object sender, Esri.ArcGISRuntime.Controls.MapViewInputEventArgs e)
{
try
{
graphicsLayer.Graphics.Add(new Graphic(e.Location));
var bufferResult = GeometryEngine.Buffer(e.Location, 100);
bufferLayer.Graphics.Add(new Graphic(bufferResult));
var queryTask = new QueryTask(
new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2"));
var query = new Query("1=1")
{
ReturnGeometry = true,
OutSpatialReference = mapView.SpatialReference,
Geometry = bufferResult
};
query.OutFields.Add("OWNERNME1");
var queryResult = await queryTask.ExecuteAsync(query);
if (queryResult != null && queryResult.FeatureSet != null)
{
parcelLayer.Graphics.AddRange(queryResult.FeatureSet.Features);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Spatial Query Sample");
}
}
// Query for rows related to the selected well in the wells list view
private async void WellsGrid_SelectionChanged(object sender, Windows.UI.Xaml.Controls.SelectionChangedEventArgs e)
{
try
{
if (e.AddedItems != null && e.AddedItems.Count > 0)
{
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0"));
//Relationship query
var objectIds = e.AddedItems.OfType<Graphic>()
.Select(g => Convert.ToInt64(g.Attributes["OBJECTID"]));
RelationshipParameters parameters = new RelationshipParameters(new List<long>(objectIds), 3)
{
OutSpatialReference = MyMapView.SpatialReference
};
parameters.OutFields.AddRange(new string[] { "OBJECTID, API_NUMBER, ELEVATION, FORMATION, TOP" });
var result = await queryTask.ExecuteRelationshipQueryAsync(parameters);
relationshipsGrid.ItemsSource = result.RelatedRecordGroups.FirstOrDefault().Value;
}
}
catch (Exception ex)
{
var _x = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
}
// Load parcels from map service
private async Task LoadParcelsAsync()
{
var queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1"));
var query = new Query(mapView.Extent) { ReturnGeometry = true, OutSpatialReference = mapView.SpatialReference, OutFields = new OutFields(new List<string> { "Shape" }) };
var result = await queryTask.ExecuteAsync(query);
parcelLayer.Graphics.Clear();
parcelLayer.Graphics.AddRange(result.FeatureSet.Features);
}
public QueryRelatedRecords()
{
InitializeComponent();
graphicsLayer = MyMap.Layers["GraphicsWellsLayer"] as GraphicsLayer;
queryTask = new QueryTask("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.ExecuteRelationshipQueryCompleted += QueryTask_ExecuteRelationshipQueryCompleted;
queryTask.Failed += QueryTask_Failed;
}
public BufferQueryTaskAsync()
{
InitializeComponent();
_geometryService = new GeometryService("http://tasks.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");
_queryTask = new QueryTask("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2");
_pointAndBufferGraphicsLayer = MyMap.Layers["MyBufferPointGraphicsLayer"] as GraphicsLayer;
_resultsGraphicsLayer = MyMap.Layers["MyResultsGraphicsLayer"] as GraphicsLayer;
}
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;
}
}
}
void QueryButton_Click(object sender, RoutedEventArgs e)
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.Text = StateNameTextBox.Text;
query.OutFields.Add("*");
queryTask.ExecuteAsync(query);
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
if (parcelGraphicsLayer != null && parcelGraphicsLayer.Graphics.Count == 0)
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1");
Query query = new Query();
query.Geometry = MyMap.Extent;
query.ReturnGeometry = true;
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
queryTask.ExecuteAsync(query);
}
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
OutSpatialReference = MyMap.SpatialReference,
ReturnGeometry = true
};
query.OutFields.Add("STATE_NAME");
query.Where = "STATE_NAME IN ('Alaska', 'Hawaii', 'Washington', 'Oregon', 'Arizona', 'Nevada', 'Idaho', 'Montana', 'Utah', 'Wyoming', 'Colorado', 'New Mexico')";
QueryTask myQueryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5");
myQueryTask.ExecuteCompleted += myQueryTask_ExecuteCompleted;
myQueryTask.ExecuteAsync(query);
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
Geometry = MyMap.Extent,
ReturnGeometry=true,
OutSpatialReference = MyMap.SpatialReference
};
query.OutFields.Add("*");
QueryTask queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.ExecuteAsync(query);
}
private void LoadPolygonGraphics()
{
QueryTask queryTask =
new QueryTask("http://servicesbeta5.esri.com/arcgis/rest/services/UnitedStates/FeatureServer/3");
queryTask.ExecuteCompleted += queryTaskPolygon_ExecuteCompleted;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.Where = "1=1";
query.OutFields.AddRange(new string[] { "STATE_NAME", "POP2000" });
queryTask.ExecuteAsync(query);
}
private async Task RunRelationshipQuery(IEnumerable<long> objectIds)
{
QueryTask queryTask =
new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0"));
//Relationship query
RelationshipParameter parameters = new RelationshipParameter(new List<long>(objectIds), 3)
{
OutSpatialReference = mapView1.SpatialReference
};
parameters.OutFields.AddRange(new string[] { "OBJECTID, API_NUMBER, ELEVATION, FORMATION, TOP" });
var result = await queryTask.ExecuteRelationshipQueryAsync(parameters);
RelationshipResultsGrid.ItemsSource = result.RelatedRecordGroups.FirstOrDefault().Value;
}
public CreateWebMapObject()
{
InitializeComponent();
//Define BaseMap Layer
basemap = new BaseMap()
{
Layers = new List<WebMapLayer> { new WebMapLayer { Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer" } }
};
//Add a ArcGISDynamicMapService
operationLayers.Add(new WebMapLayer
{
Url = "http://serverapps10.esri.com/ArcGIS/rest/services/California/MapServer",
VisibleLayers = new List<object> { 0, 1, 3, 6, 9 }
});
//Define popup
IList<FieldInfo> fieldinfos = new List<FieldInfo>();
fieldinfos.Add(new FieldInfo() { FieldName = "STATE_NAME", Label = "State", Visible = true });
IList<MediaInfo> mediainfos = new List<MediaInfo>();
MediaInfoValue infovalue = new MediaInfoValue();
infovalue.Fields = new string[] { "POP2000,POP2007" };
mediainfos.Add(new MediaInfo() { Type = MediaType.PieChart, Value = infovalue });
PopupInfo popup = new PopupInfo() { FieldInfos = fieldinfos, MediaInfos = mediainfos, Title = "Population Change between 2000 and 2007", };
//Add a Feature Layer with popup
operationLayers.Add(new WebMapLayer
{
Url = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/3",
Mode = FeatureLayer.QueryMode.OnDemand,
PopupInfo = popup
});
//Perform Query to get a featureSet and add to webmap as featurecollection
QueryTask qt = new QueryTask() { Url = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/EarthquakesFromLastSevenDays/MapServer/0" };
qt.ExecuteCompleted += qt_ExecuteCompleted;
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutFields.Add("*");
query.Where = "magnitude > 3.5";
query.ReturnGeometry = true;
qt.Failed += (a, b) =>
{
MessageBox.Show("QueryTask failed to execute:" + b.Error);
};
qt.ExecuteAsync(query);
}
private void HandleLayerMetaData( string metadata )
{
JsonObject lyrMetadataJSON = JsonObject.Parse( metadata ) as JsonObject;
LayerMetadata = ArcJSONReader.ReadLayerMetadata( lyrMetadataJSON );
LayerType = LayerTypeProvider.CreateLayerRecordType( LayerMetadata );
QueryTask queryTask = new QueryTask( "http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5" );
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
Query query = new Query();
query.OutFields.Add( "*" );
query.Where = "1=1";
queryTask.ExecuteAsync( query );
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
if (parcelGraphicsLayer != null && parcelGraphicsLayer.Graphics.Count == 0)
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1");
Query query = new Query();
query.Geometry = new Envelope(-83.3188395774275, 42.61428312652851, -83.31295664068958, 42.61670913269855) { SpatialReference = new SpatialReference(4326) };
query.ReturnGeometry = true;
query.OutSpatialReference = MyMap.SpatialReference;
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
queryTask.ExecuteAsync(query);
}
}
private async Task LoadParcels()
{
//Use a QueryTask to load the Parcels into the graphics layer.
//Notice that we are filtering the returned features based on the current map's extent
//by passing in a geometry into the constructor of the Query object
var queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1"));
var query = new Query(mapView1.Extent) { ReturnGeometry = true, OutSpatialReference = mapView1.SpatialReference };
var result = await queryTask.ExecuteAsync(query);
graphicsLayer.Graphics.Clear();
graphicsLayer.Graphics.AddRange(result.FeatureSet.Features);
//Once the graphics have been loaded we can now enable the 'Cut Polygons' button
CutPolygonsButton.IsEnabled = true;
}
private void LoadPolygonGraphics()
{
QueryTask queryTask =
new QueryTask("http://serverapps.esri.com/SDS/databases/Demo/dbo.USStates_Mercator");
queryTask.ExecuteCompleted += queryTaskPolygon_ExecuteCompleted;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.Where = "1=1";
// Note, query.Text is not supported for use with MapIt
query.OutFields.AddRange(new string[] { "STATE_NAME", "POP2008" });
queryTask.ExecuteAsync(query);
}
/// <summary>
/// I want FSM (http://stackoverflow.com/questions/5923767/simple-state-machine-example-in-c)
/// http://stackoverflow.com/questions/5923767/simple-state-machine-example-in-c/5924286#5924286
/// </summary>
public QueryRelatedTool()
{
// Initialize the QueryTask
queryTask = new QueryTask();
queryTask.ExecuteRelationshipQueryCompleted += QueryTask_ExecuteRelationshipQueryCompleted;
queryTask.Failed += QueryTask_Failed;
relationsListForm = new VShortList(this);
flList = new Dictionary <string, mwb02.AddIns.VLayer>();
try {
MapApplication.Current.Map.Layers.CollectionChanged -= Layers_CollectionChanged;
MapApplication.Current.Map.Layers.CollectionChanged += Layers_CollectionChanged;
log(string.Format("Constructor OK"));
}
catch (Exception ex) {
log(string.Format("Constructor, error {0}", ex.Message));
}
} // public QueryRelatedTool()
void ThematicLayerControl_Loaded(object sender, RoutedEventArgs e)
{
ClassCountCombo.ItemsSource = new int[] { 3, 4, 5, 6 };
ClassTypeCombo.ItemsSource = new string[] { "Quantile", "Equal Interval" };
ColorBlendCombo.SelectedIndex = ClassTypeCombo.SelectedIndex = ClassCountCombo.SelectedIndex = 0;
// Get start value for number of classifications in XAML.
_lastGeneratedClassCount = 3;
// Set query where clause to include features with an area greater than 70 square miles. This
// will effectively exclude the District of Columbia from attributes to avoid skewing classifications.
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
Where = "SQMI > 70"
};
query.OutFields.Add("*");
QueryTask queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/" +
"Demographics/ESRI_Census_USA/MapServer/5");
queryTask.ExecuteCompleted += (evtsender, args) =>
{
if (args.FeatureSet == null)
{
return;
}
_featureSet = args.FeatureSet;
if (_featureSet != null && _featureSet.Features.Count > 0)
{
// Clear previous graphic features
Layer.ClearGraphics();
for (int i = 0; i < _featureSet.Features.Count; i++)
{
Layer.Graphics.Add(_featureSet.Features[i]);
}
SetRangeValues();
// RenderButton.IsEnabled = true;
}
};
queryTask.ExecuteAsync(query);
CreateColorList();
CreateThematicList();
}
// Load US state data from map service
private async Task LoadStatesAsync()
{
var queryTask = new QueryTask(
new Uri("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/2"));
var query = new Query(mapView.Extent)
{
ReturnGeometry = true,
OutSpatialReference = mapView.SpatialReference,
OutFields = new OutFields(new List <string> {
"sub_region"
})
};
var result = await queryTask.ExecuteAsync(query);
states.Graphics.Clear();
states.Graphics.AddRange(result.FeatureSet.Features);
}
private async void MyMapView_LayerLoaded(object sender, LayerLoadedEventArgs e)
{
if (_parcelOverlay != null && _parcelOverlay.Graphics.Count == 0)
{
try
{
ControlsContainer.Visibility = Visibility.Collapsed;
LoadingParcelsContainer.Visibility = Visibility.Visible;
QueryTask queryTask = new QueryTask(
new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1"));
//Create a geometry to use as the extent within which parcels will be returned
var contractRatio = MyMapView.Extent.Width / 6;
var extentGeometry = new Envelope(
-83.3188395774275,
42.61428312652851,
-83.31295664068958,
42.61670913269855,
SpatialReferences.Wgs84);
Query query = new Query(extentGeometry);
query.ReturnGeometry = true;
query.OutSpatialReference = SpatialReferences.WebMercator;
var results = await queryTask.ExecuteAsync(query, CancellationToken.None);
foreach (Graphic g in results.FeatureSet.Features)
{
_parcelOverlay.Graphics.Add(g);
}
ControlsContainer.Visibility = Visibility.Visible;
}
catch (Exception ex)
{
MessageBox.Show("Error loading parcel data: " + ex.Message, "Sample Error");
}
finally
{
LoadingParcelsContainer.Visibility = Visibility.Collapsed;
}
}
await SelectParcelForOffsetAsync();
}
// Load parcels from map service
private async Task LoadParcelsAsync()
{
var queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1"));
// Get current viewpoints extent from the MapView
var currentViewpoint = MyMapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
var viewpointExtent = currentViewpoint.TargetGeometry.Extent;
var query = new Query(viewpointExtent)
{
ReturnGeometry = true, OutSpatialReference = MyMapView.SpatialReference, OutFields = OutFields.All
};
var result = await queryTask.ExecuteAsync(query);
_graphicsOverlay.Graphics.Clear();
_graphicsOverlay.Graphics.AddRange(result.FeatureSet.Features.OfType <Graphic>());
}
private void doQuery(ESRI.ArcGIS.Client.Geometry.Geometry geometry)
{
QueryTask queryTask = new QueryTask("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
Geometry = geometry,
SpatialRelationship = SpatialRelationship.esriSpatialRelContains,
OutSpatialReference = MyMap.SpatialReference,
ReturnGeometry = true
};
query.OutFields.Add("*");
queryTask.ExecuteAsync(query);
}
private async void QueryComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
try
{
progress.Visibility = Visibility.Visible;
results.Visibility = Visibility.Collapsed;
resultsGrid.ItemsSource = null;
_graphicsLayer.Graphics.Clear();
QueryTask queryTask = new QueryTask(
new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5"));
var stateName = (string)(QueryComboBox.SelectedItem as Graphic).Attributes["STATE_NAME"];
Query query = new Query(string.Format("STATE_NAME = '{0}'", stateName))
{
OutFields = OutFields.All,
ReturnGeometry = true,
OutSpatialReference = mapView.SpatialReference
};
var result = await queryTask.ExecuteAsync(query);
var featureSet = result.FeatureSet;
if (featureSet != null && featureSet.Features.Count > 0)
{
var graphic = featureSet.Features.First();
_graphicsLayer.Graphics.Add(graphic);
var selectedFeatureExtent = graphic.Geometry.Extent;
Envelope displayExtent = selectedFeatureExtent.Expand(1.3);
mapView.SetView(displayExtent);
resultsGrid.ItemsSource = graphic.Attributes
.Select(attr => new Tuple <string, string>(attr.Key, attr.Value.ToString()));
results.Visibility = Visibility.Visible;
}
}
catch (Exception ex)
{
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
finally
{
progress.Visibility = Visibility.Collapsed;
}
}
public SDSSpatialQuery()
{
InitializeComponent();
selectionGraphicslayer = MyMap.Layers["MySelectionGraphicsLayer"] as GraphicsLayer;
MyDrawObject = new Draw(MyMap)
{
LineSymbol = LayoutRoot.Resources["DefaultLineSymbol"] as LineSymbol,
FillSymbol = LayoutRoot.Resources["DefaultFillSymbol"] as FillSymbol
};
MyDrawObject.DrawComplete += MyDrawSurface_DrawComplete;
MyQueryTask = new QueryTask("http://servicesbeta5.esri.com/arcgis/rest/services/UnitedStates/FeatureServer/3");
MyQueryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
MyQueryTask.Failed += QueryTask_Failed;
}
private async void mapView1_Tapped_1(object sender, Esri.ArcGISRuntime.Controls.MapViewInputEventArgs e)
{
var mp = e.Location;
Graphic g = new Graphic()
{
Geometry = mp
};
var graphicsLayer = mapView1.Map.Layers["MyGraphicsLayer"] as GraphicsLayer;
graphicsLayer.Graphics.Add(g);
var bufferResult = GeometryEngine.Buffer(mp, 100);
var bufferLayer = mapView1.Map.Layers["BufferLayer"] as GraphicsLayer;
bufferLayer.Graphics.Add(new Graphic()
{
Geometry = bufferResult
});
var queryTask = new QueryTask(new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/BloomfieldHillsMichigan/Parcels/MapServer/2"));
var query = new Query("1=1")
{
ReturnGeometry = true,
OutSpatialReference = mapView1.SpatialReference,
Geometry = bufferResult
};
query.OutFields.Add("OWNERNME1");
try
{
var queryResult = await queryTask.ExecuteAsync(query);
if (queryResult != null && queryResult.FeatureSet != null)
{
var resultLayer = mapView1.Map.Layers["MyResultsGraphicsLayer"] as GraphicsLayer;
resultLayer.Graphics.AddRange(queryResult.FeatureSet.Features.OfType <Graphic>());
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
private string QueryRouteNameByUserName()
{
string routeName = null;
while (String.IsNullOrEmpty(_username))
{
_loginDialog.ShowDialog();
_username = _loginDialog.UserName;
}
try
{
string accountNameFieldAlias = ConfigurationManager.AppSettings.Get("RouteAssignmentAccountFieldAlias");
string accountNameFieldName = _flRouteAssignment.FieldAliasToName(accountNameFieldAlias);
QueryTask queryTask = new QueryTask(_flRouteAssignment.Url);
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.Where = accountNameFieldName + "='" + _username + "'";
query.ReturnGeometry = false;
query.OutFields.AddRange(new string[] { "*" });
queryTask.Execute(query);
if (queryTask.LastResult.Features.Count() > 0)
{
string routeNameFieldAlias = ConfigurationManager.AppSettings.Get("RouteAssignmentRouteFieldAlias");
string routeNameFieldName = _flRouteAssignment.FieldAliasToName(routeNameFieldAlias);
Graphic feature = queryTask.LastResult.Features.First();
if (feature.Attributes.ContainsKey(routeNameFieldName))
{
routeName = feature.Attributes[routeNameFieldName].ToString();
}
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
if (routeName == null)
{
MessageBox.Show("Please make sure '" + _username + "' is listed in the '" + _flRouteAssignment.FeatureLayer.DisplayName + "' feature service layer.", "Error retreiving the Route Name for " + _username, MessageBoxButton.OK, MessageBoxImage.Error);
Application.Current.Shutdown();
}
return(routeName);
}
private void LoadGraphics()
{
QueryTask queryTask =
new QueryTask("http://servicesbeta5.esri.com/arcgis/rest/services/World/FeatureServer/0");
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.DisableClientCaching = true;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.Where = "POP_RANK < 4";
// Note, query.Text is not supported for use with Spatial Data Services
query.OutFields.AddRange(new string[] { "CITY_NAME" });
queryTask.ExecuteAsync(query);
}
// Load earthquakes from map service
private async Task LoadEarthquakesAsync()
{
var queryTask = new QueryTask(
new Uri("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/EarthquakesFromLastSevenDays/MapServer/0"));
var query = new Query(mapView.Extent)
{
ReturnGeometry = true,
OutSpatialReference = mapView.SpatialReference,
Where = "magnitude > 2.0",
OutFields = new OutFields(new List <string> {
"magnitude"
})
};
var result = await queryTask.ExecuteAsync(query);
earthquakes.Graphics.Clear();
earthquakes.Graphics.AddRange(result.FeatureSet.Features);
}
private void LoadGraphics()
{
QueryTask queryTask =
new QueryTask("http://mapit.cloudapp.net/databases/Demo/dbo.WorldCities");
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.DisableClientCaching = true;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.Where = "1=1";
// Note, query.Text is not supported for use with Spatial Data Services
query.OutFields.AddRange(new string[] { "NAME", "POPULATION" });
queryTask.ExecuteAsync(query);
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
if (parcelGraphicsLayer != null && parcelGraphicsLayer.Graphics.Count == 0)
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1");
Query query = new Query();
query.Geometry = new Envelope(-83.3188395774275, 42.61428312652851, -83.31295664068958, 42.61670913269855)
{
SpatialReference = new SpatialReference(4326)
};
query.ReturnGeometry = true;
query.OutSpatialReference = MyMap.SpatialReference;
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
queryTask.ExecuteAsync(query);
}
}
private void LoadGraphics()
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0");
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
OutSpatialReference = MyMap.SpatialReference,
ReturnGeometry = true,
Where = "1=1"
};
query.OutFields.Add("CITY_NAME");
queryTask.ExecuteAsync(query);
}
void Layers_LayersInitialized(object sender, EventArgs args)
{
if (parcelGraphicsLayer != null && parcelGraphicsLayer.Graphics.Count == 0)
{
QueryTask queryTask =
new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1");
Query query = new Query();
double contractRatio = MyMap.Extent.Width / 6;
query.Geometry = new Envelope(MyMap.Extent.GetCenter().X - contractRatio,
MyMap.Extent.GetCenter().Y - contractRatio,
MyMap.Extent.GetCenter().X + contractRatio,
MyMap.Extent.GetCenter().Y + contractRatio);
query.ReturnGeometry = true;
queryTask.ExecuteCompleted += queryTask_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
queryTask.ExecuteAsync(query);
}
}
private async Task LoadParcels()
{
//Use a QueryTask to load the Parcels into the graphics layer.
//Notice that we are filtering the returned features based on the current map's extent
//by passing in a geometry into the constructor of the Query object
var queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/TaxParcel/AssessorsParcelCharacteristics/MapServer/1"));
var query = new Query(mapView1.Extent)
{
ReturnGeometry = true, OutSpatialReference = mapView1.SpatialReference
};
var result = await queryTask.ExecuteAsync(query);
graphicsLayer.Graphics.Clear();
graphicsLayer.Graphics.AddRange(result.FeatureSet.Features);
//Once the graphics have been loaded we can now enable the 'Cut Polygons' button
CutPolygonsButton.IsEnabled = true;
}
public void setsource()
{
try
{
QueryTask queryTask = new QueryTask();
queryTask.Url = url;
queryTask.ExecuteCompleted += new EventHandler <QueryEventArgs>(queryTask_ExecuteCompleted);
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.ReturnGeometry = true;
query.Where = filter;
// query.OutFields.Add("OBJECTID"); SDE 发布的需要这条
queryTask.ExecuteAsync(query);
}
catch
{
//throw;
}
}
private void CitiesGraphicsLayerLoad()
{
ESRI.ArcGIS.Client.Tasks.Query query = new ESRI.ArcGIS.Client.Tasks.Query()
{
Geometry = new ESRI.ArcGIS.Client.Geometry.Envelope(-180, 0, 0, 90)
{
SpatialReference = new ESRI.ArcGIS.Client.Geometry.SpatialReference(4326)
},
ReturnGeometry = true,
OutSpatialReference = MyMap.SpatialReference
};
query.OutFields.Add("*");
query.Where = "POP1990 > 100000";
QueryTask queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0");
queryTask.ExecuteCompleted += CitiesGraphicsLayerQueryTask_ExecuteCompleted;
queryTask.ExecuteAsync(query);
}
// Load data from map service
private async Task LoadDataAsync()
{
var queryTask = new QueryTask(
new Uri("http://sampleserver6.arcgisonline.com/ArcGIS/rest/services/USA/MapServer/0"));
var query = new Query(MyMapView.Extent)
{
ReturnGeometry = true,
OutSpatialReference = MyMapView.SpatialReference,
Where = "pop2000 > 50000",
OutFields = new OutFields(new List <string> {
"pop2000"
})
};
var result = await queryTask.ExecuteAsync(query);
_cities.Graphics.Clear();
_cities.Graphics.AddRange(result.FeatureSet.Features.OfType <Graphic>());
}
public override void Initialize()
{
#region Do query
if (task != null)
{
task.ExecuteCompleted -= task_QueryComplete;
task.Failed -= task_Fault;
if (task.IsBusy)
{
task.CancelAsync();
}
}
else
{
task = new QueryTask(Url)
{
DisableClientCaching = this.DisableClientCaching,
Token = this.Token,
ProxyURL = this.ProxyUrl
};
}
task.ExecuteCompleted += task_QueryComplete;
task.Failed += task_Fault;
#region Set up query
Query query = new Query();
if (string.IsNullOrEmpty(Where) && string.IsNullOrEmpty(Text) && Geometry == null)
{
query.Where = "1=1"; //Default to all features
}
else
{
query.Where = Where;
}
query.Text = Text;
query.OutSpatialReference = MapSpatialReference;
query.Geometry = Geometry;
query.ReturnGeometry = true;
#endregion
base.OnProgress(0);
task.ExecuteAsync(query);
#endregion
}
private async Task GetAttributes()
{
QueryTask queryTask = new QueryTask(new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Census_USA/MapServer/5"));
var qryText = (string)(QueryComboBox.SelectedItem as Graphic).Attributes["STATE_NAME"];
Query query = new Query(qryText)
{
OutFields = OutFields.All,
ReturnGeometry = true,
OutSpatialReference = MyMapView.SpatialReference
};
try
{
ResultsGrid.ItemsSource = null;
progress.IsActive = true;
var result = await queryTask.ExecuteAsync(query);
var featureSet = result.FeatureSet;
// If an item has been selected
GraphicsLayer graphicsLayer = MyMapView.Map.Layers["MyGraphicsLayer"] as GraphicsLayer;
graphicsLayer.Graphics.Clear();
if (featureSet != null && featureSet.Features.Count > 0)
{
var symbol = LayoutRoot.Resources["DefaultFillSymbol"] as Esri.ArcGISRuntime.Symbology.Symbol;
var g = featureSet.Features[0];
graphicsLayer.Graphics.Add(g as Graphic);
var selectedFeatureExtent = g.Geometry.Extent;
Envelope displayExtent = selectedFeatureExtent.Expand(1.3);
MyMapView.SetView(displayExtent);
ResultsGrid.ItemsSource = g.Attributes;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
finally
{
progress.IsActive = false;
}
}
public void refreshnow()
{
try
{
QueryTask queryTask = new QueryTask();
queryTask.Url = url;
queryTask.ExecuteCompleted += new EventHandler <QueryEventArgs>(queryTask_ExecuteCompleted);
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.ReturnGeometry = true;
query.Where = filter;
// query.OutFields.Add("OBJECTID");
queryTask.ExecuteAsync(query);
}
catch
{
//throw;//LPY 2015-8-11 11:09:45 注释掉
}
}
private void LoadPointGraphics(int minLimitRange, int maxLimitRange)
{
QueryTask queryTask =
new QueryTask("http://serverapps.esri.com/SDS/databases/Demo/dbo.USCities_Mercator");
queryTask.ExecuteCompleted += queryTaskPoint_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.OutFields.AddRange(new string[] { "POP2007", "NAME" });
query.Where = string.Format("(FID >= {0}) AND (FID <= {1})",
minLimitRange, maxLimitRange);
queryTask.ExecuteAsync(query);
}
private void LoadPointGraphics(int minLimitRange, int maxLimitRange)
{
QueryTask queryTask =
new QueryTask("http://servicesbeta5.esri.com/arcgis/rest/services/UnitedStates/FeatureServer/0");
queryTask.ExecuteCompleted += queryTaskPoint_ExecuteCompleted;
queryTask.Failed += queryTask_Failed;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutSpatialReference = MyMap.SpatialReference;
query.ReturnGeometry = true;
query.OutFields.AddRange(new string[] { "POP2000", "AREANAME" });
query.Where = string.Format("(OBJECTID >= {0}) AND (OBJECTID <= {1})",
minLimitRange, maxLimitRange);
queryTask.ExecuteAsync(query);
}
private async Task SearchForResultAsync()
{
if (QueryTask != null)
{
QueryTask.AsAsyncAction().Cancel();
}
VisualStateManager.GoToState(this, "Searching", false);
QueryTask = LightNovel.Data.LightKindomHtmlClient.SearchBookAsync(QueryText);
try
{
Results = await QueryTask;
}
catch (Exception)
{
Results = null;
}
QueryTask = null;
LoadResultIntoView();
}
private void MyDrawObject_DrawComplete(object sender, ESRI.ArcGIS.Client.DrawEventArgs args)
{
myDrawObject.IsEnabled = false;
QueryTask queryTask = new QueryTask("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Portland/Aerial/ImageServer/query");
queryTask.ExecuteCompleted += QueryTask_ExecuteCompleted;
queryTask.Failed += QueryTask_Failed;
Query query = new ESRI.ArcGIS.Client.Tasks.Query();
query.OutFields.Add("*");
query.Geometry = args.Geometry;
query.ReturnGeometry = true;
query.OutSpatialReference = MyMap.SpatialReference;
query.Where = "Category = 1";
queryTask.ExecuteAsync(query);
}
private async Task SearchForResultAsync()
{
if (QueryTask != null)
{
QueryTask.AsAsyncAction().Cancel();
}
VisualStateManager.GoToState(this, "Searching", false);
QueryTask = DmzjDocSecBase.SearchBookAsync(QueryText);
try
{
Results = await QueryTask;
}
catch (Exception)
{
Results = null;
}
QueryTask = null;
LoadResultIntoView();
}
public async Task QueryDatabaseJSON()
{
var queryProperties = new QueryProperties {
Query = "SELECT * FROM DecimalTest"
};
var outputProperties = new OutputProperties
{
ReturnType = QueryReturnType.Json,
JsonOutput = new JsonOutputProperties()
};
var options = new Options {
ThrowErrorOnFailure = true
};
Output result = await QueryTask.Query(queryProperties, outputProperties, _conn, options, new CancellationToken());
Assert.AreNotEqual("", result.Result);
Assert.AreEqual(true, result.Success);
}
