Class Design: 一些有用的Attribute

[Description("Dampingcalculationmethod"),CategoryAttribute("Generalpropellerdata")]
[TypeConverter(typeof(OptionConverter))]
[Range(0.0,1.0,ErrorMessage="PitchRatiomustbebetween0and1")]
[ReadOnly(false)]
[Browsable(false)]
[EditorBrowsable(EditorBrowsableState.Never)]

publicdoublePitchRatio{get;set;}

[Range(1,5,ErrorMessage="PitchRatiomustbebetween1and5")][ReadOnly(false)][Browsable(false)][EditorBrowsable(EditorBrowsableState.Never)]

publicintPitchRatio{get;set;}

1)PropertyGridDataBinding支持/Array显示为Combox

[TypeConverter(typeof(OptionConverter))]

publicclassOptionConverter:StringConverter{publicstaticreadonlystring[]DampingModel={"Dynamicmagnifier","Schwanecke","Archer","Frahm"};publicoverrideTypeConverter.StandardValuesCollectionGetStandardValues(ITypeDescriptorContextcontext){returnnewStandardValuesCollection(DampingModel);}publicoverrideboolGetStandardValuesExclusive(ITypeDescriptorContextcontext){returntrue;//TruemakestheComboboxselectonly.Falseallowsfreetextentry.}publicoverrideboolGetStandardValuesSupported(ITypeDescriptorContextcontext){returntrue;//TruetellsthePropertyGridtodisplayaCombobox}}

2)Range

对于double,要用[Range(0.0,1.0,ErrorMessage="PitchRatiomustbebetween0.0and1.0")]

如果用[Range(0,1,ErrorMessage="PitchRatiomustbebetween0.0and1.0")],则失效。

类型的准确。

3）[Browsable(false)]
指定一个属性或事件是否应显示在“属性”窗口中。

4）[EditorBrowsable(EditorBrowsableState.Never)]
指定某个属性或方法在编辑器中可以查看.

例如，VisualStudio中的IntelliSense引擎使用此特性来确定是否显示属性或方法。

自己定义显示AutoCompletionList;

5)[ReadOnly(false)],Description("Dampingcalculationmethod"),CategoryAttribute("Generalpropellerdata")]