async public Task <List <IDatasetElement> > Elements()
{
if (_fdb == null)
{
return(new List <IDatasetElement>());
}
if (_layers == null || _layers.Count == 0)
{
_layers = await _fdb.DatasetLayers(this);
if (_layers != null && _addedLayers.Count != 0)
{
List <IDatasetElement> list = new List <IDatasetElement>();
foreach (IDatasetElement element in _layers)
{
if (element is IFeatureLayer)
{
if (_addedLayers.Contains(((IFeatureLayer)element).FeatureClass.Name))
{
list.Add(element);
}
}
else if (element is IRasterLayer)
{
if (_addedLayers.Contains(((IRasterLayer)element).Title))
{
list.Add(element);
}
}
else
{
if (_addedLayers.Contains(element.Title))
{
list.Add(element);
}
}
}
_layers = list;
}
}
if (_layers == null)
{
return(new List <IDatasetElement>());
}
return(_layers);
}
