private async void OnTrace(object sender, RoutedEventArgs e)
{
try
{
LoadingBar.Visibility = Visibility.Visible;
// Clear previous selection from the layers.
MyMapView.Map.OperationalLayers.OfType <FeatureLayer>().ToList().ForEach(layer => layer.ClearSelection());
if (Categories.SelectedItem is UtilityCategory category)
{
// NOTE: UtilityNetworkAttributeComparison or UtilityCategoryComparison with Operator.DoesNotExists
// can also be used. These conditions can be joined with either UtilityTraceOrCondition or UtilityTraceAndCondition.
UtilityCategoryComparison categoryComparison = new UtilityCategoryComparison(category, UtilityCategoryComparisonOperator.Exists);
// Add the filter barrier.
_configuration.Filter.Barriers = categoryComparison;
}
// Set the include isolated features property.
_configuration.IncludeIsolatedFeatures = IncludeIsolatedFeatures.IsChecked == true;
// Build parameters for isolation trace.
UtilityTraceParameters parameters = new UtilityTraceParameters(UtilityTraceType.Isolation, new[] { _startingLocation });
parameters.TraceConfiguration = _configuration;
// Get the trace result from trace.
IEnumerable <UtilityTraceResult> traceResult = await _utilityNetwork.TraceAsync(parameters);
UtilityElementTraceResult elementTraceResult = traceResult?.FirstOrDefault() as UtilityElementTraceResult;
// Select all the features from the result.
if (elementTraceResult?.Elements?.Count > 0)
{
foreach (FeatureLayer layer in MyMapView.Map.OperationalLayers.OfType <FeatureLayer>())
{
IEnumerable <UtilityElement> elements = elementTraceResult.Elements.Where(element => element.NetworkSource.Name == layer.FeatureTable.TableName);
IEnumerable <Feature> features = await _utilityNetwork.GetFeaturesForElementsAsync(elements);
layer.SelectFeatures(features);
}
}
}
catch (Exception ex)
{
await new MessageDialog(ex.Message, ex.GetType().Name).ShowAsync();
}
finally
{
LoadingBar.Visibility = Visibility.Collapsed;
}
}
private async void OnTrace(object sender, EventArgs e)
{
try
{
_loadingView.StartAnimating();
// Clear previous selection from the layers.
_myMapView.Map.OperationalLayers.OfType <FeatureLayer>().ToList().ForEach(layer => layer.ClearSelection());
if (_selectedCategory != null)
{
// NOTE: UtilityNetworkAttributeComparison or UtilityCategoryComparison with Operator.DoesNotExists
// can also be used. These conditions can be joined with either UtilityTraceOrCondition or UtilityTraceAndCondition.
UtilityCategoryComparison categoryComparison = new UtilityCategoryComparison(_selectedCategory, UtilityCategoryComparisonOperator.Exists);
// Add the filter barrier.
_configuration.Filter.Barriers = categoryComparison;
}
// Set the include isolated features property.
_configuration.IncludeIsolatedFeatures = _featuresSwitch.On;
// Build parameters for isolation trace.
UtilityTraceParameters parameters = new UtilityTraceParameters(UtilityTraceType.Isolation, new[] { _startingLocation });
parameters.TraceConfiguration = _configuration;
// Get the trace result from trace.
IEnumerable <UtilityTraceResult> traceResult = await _utilityNetwork.TraceAsync(parameters);
UtilityElementTraceResult elementTraceResult = traceResult?.FirstOrDefault() as UtilityElementTraceResult;
// Select all the features from the result.
if (elementTraceResult?.Elements?.Count > 0)
{
foreach (FeatureLayer layer in _myMapView.Map.OperationalLayers.OfType <FeatureLayer>())
{
IEnumerable <UtilityElement> elements = elementTraceResult.Elements.Where(element => element.NetworkSource.Name == layer.FeatureTable.TableName);
IEnumerable <Feature> features = await _utilityNetwork.GetFeaturesForElementsAsync(elements);
layer.SelectFeatures(features);
}
}
}
catch (Exception ex)
{
new UIAlertView(ex.GetType().Name, ex.Message, (IUIAlertViewDelegate)null, "OK", null).Show();
}
finally
{
_loadingView.StopAnimating();
}
}
