public IData GetData(string tag, DataType type)
        {
            switch (type)
            {
            case DataType.City:
            {
                SelectedData = SelectData.GetDataById(DefaultCollection.Citys, tag);
                return(SelectedData);
            }

            case DataType.Terrain:
            {
                SelectedData = new StaticTerrain {
                    Name = "default", DataType = DataType.Terrain, TagName = "terrain_default"
                };
                return(SelectedData);;
            }
            }
            return(null);
        }