public LayerConditionViewModel(LayerEditorViewModel conditionModel, LayerConditionModel layerConditionModel)
{
_conditionModel = conditionModel;
_preselecting = false;
LayerConditionModel = layerConditionModel;
DataModelProps = conditionModel.DataModelProps;
Operators = new BindableCollection<NamedOperator>();
Enums = new BindableCollection<string>();
PropertyChanged += UpdateModel;
PropertyChanged += UpdateForm;
PreSelect();
}