public MainViewModel() { Instance = this; DataTypes.AddRange(Enum.GetValues(typeof(DataType)) as IEnumerable <DataType>); DataCompareTypes.AddRange(Enum.GetValues(typeof(DataCompareType)) as IEnumerable <DataCompareType>); StringCompareTypes.AddRange(Enum.GetValues(typeof(StringCompareType)) as IEnumerable <StringCompareType>); }