public object Convert(object value, System.Type targetType, object parameter, CultureInfo culture)
{
if (value is AddHighlightFeaturesMode)
{
AddHighlightFeaturesMode mode = (AddHighlightFeaturesMode)value;
switch (mode)
{
case AddHighlightFeaturesMode.Add:
return(addToCurrent);
case AddHighlightFeaturesMode.FilterExisting:
return(searchInCurrent);
case AddHighlightFeaturesMode.Reset:
default:
return(createNew);
}
}
else
{
return(Binding.DoNothing);
}
}
protected virtual void AddHighlightFeaturesCore(IEnumerable <Feature> featuresToAdd, AddHighlightFeaturesMode addHighlightFeaturesMode)
{
switch (addHighlightFeaturesMode)
{
case AddHighlightFeaturesMode.Reset:
highlightFeatureLayer.InternalFeatures.Clear();
goto case AddHighlightFeaturesMode.Add;
case AddHighlightFeaturesMode.Add:
UsingFeatureLayer(highlightFeatureLayer, (layer) =>
{
featuresToAdd.ForEach(feature =>
{
Feature newFeature = CreateHighlightFeature(feature, (FeatureLayer)feature.Tag);
if (!layer.InternalFeatures.Contains(newFeature.Id))
{
layer.EditTools.Add(newFeature);
}
});
});
break;
case AddHighlightFeaturesMode.FilterExisting:
if (featuresToAdd.Count() > 0)
{
UsingFeatureLayer(highlightFeatureLayer, (layer) =>
{
var tag = featuresToAdd.First().Tag;
var filteredFeatureIds = featuresToAdd.Select(f => f.Id);
var highlightFeatures = layer.InternalFeatures.Where(f => f.Tag == tag).ToList();
for (int i = highlightFeatures.Count - 1; i >= 0; i--)
{
var id = highlightFeatures[i].Id;
var index = id.IndexOf("|");
if (index >= 0)
{
id = id.Substring(0, index);
}
if (!filteredFeatureIds.Contains(id))
{
layer.EditTools.Delete(highlightFeatures[i].Id);
}
}
});
}
else
{
highlightFeatureLayer.InternalFeatures.Clear();
}
break;
default:
break;
}
}
public void AddHighlightFeatures(IEnumerable <Feature> features, AddHighlightFeaturesMode addHighlightFeaturesMode)
{
AddHighlightFeaturesCore(features, addHighlightFeaturesMode);
}
