This is addon modification of TextField, which accepts only number input and has configuration: 1. Minimum value. If value this property != null - validates value for minimum; 2. Maximum value If value of this property != null - validates value for maximum; 3. Method getDoubleValue returns null, if string value is invalid number; 4. Character of decimal separator. Default = '.'; 5. Decimal length. Default = 0; 6. Character of grouping separator. Default = space; 7. Is signed. Default = true; 8. Is use grouping. Default = false;