public AdvancedQueryUserControl(FeatureLayer targetLayer)
{
InitializeComponent();
viewModel = new AdvancedQueryViewModel(targetLayer);
DataContext = viewModel;
Loaded += (s, e) =>
{
Messenger.Default.Register <bool>(this, viewModel, (value) => { CloseWindow(value); });
Messenger.Default.Register <DialogMessage>(this, viewModel, (m) => { System.Windows.Forms.MessageBox.Show(m.Content, m.Caption); });
MatchComboBox.IsEnabledChanged -= MatchComboBox_IsEnabledChanged;
MatchComboBox.IsEnabledChanged += MatchComboBox_IsEnabledChanged;
};
}
public IEnumerable <Feature> FindFeatures(ObservableCollection <QueryConditionViewModel> conditions, QueryMatchMode queryMatchMode)
{
IEnumerable <Feature> filteredFeatures = new Collection <Feature>();
switch (queryMatchMode)
{
case QueryMatchMode.All:
var featuresGroup = conditions.Select(condition => AdvancedQueryViewModel.FilterFeatures(condition)).ToArray();
for (int i = 0; i < featuresGroup.Length; i++)
{
if (i == 0)
{
filteredFeatures = featuresGroup[i];
}
else
{
return(Intersect(featuresGroup[i - 1], featuresGroup[i]));
}
}
break;
case QueryMatchMode.Any:
filteredFeatures = conditions.SelectMany(condition => AdvancedQueryViewModel.FilterFeatures(condition));
Dictionary <string, Feature> result = new Dictionary <string, Feature>();
foreach (var item in filteredFeatures)
{
Feature newFeature = GisEditor.SelectionManager.GetSelectionOverlay().CreateHighlightFeature(item, (FeatureLayer)item.Tag);
if (!result.ContainsKey(newFeature.Id))
{
result.Add(newFeature.Id, newFeature);
}
}
return(result.Values);
}
return(filteredFeatures);
}