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PropertyAttributes Enumeration
Visual Studio 2010
Defines the attributes that can be associated with a property. These attribute values are defined in corhdr.h.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Namespace: System.ReflectionAssembly: mscorlib (in mscorlib.dll)
| Member name | Description | |
|---|---|---|
![]() | None | Specifies that no attributes are associated with a property. |
![]() | SpecialName | Specifies that the property is special, with the name describing how the property is special. |
![]() | ReservedMask | Specifies a flag reserved for runtime use only. |
![]() | RTSpecialName | Specifies that the metadata internal APIs check the name encoding. |
![]() | HasDefault | Specifies that the property has a default value. |
![]() | Reserved2 | Reserved. |
![]() | Reserved3 | Reserved. |
![]() | Reserved4 | Reserved. |
The following example builds three properties and displays the PropertyAttributes enumerated value. Note that the read-only property has no setter and thus cannot be changed by.Caption = statement.
using namespace System; using namespace System::Reflection; // Define three properties: one read-write, one default, // and one read only. // Define a read-write property. public ref class Aproperty { private: String^ caption; public: Aproperty() : caption( "A Default caption" ) {} property String^ Caption { String^ get() { return caption; } void set( String^ value ) { if ( caption != value ) { caption = value; } } } }; // Define a default property. public ref class Bproperty { private: String^ caption; public: Bproperty() : caption( "B Default caption" ) {} public: property String^ Item { String^ get() { return "1"; } } property String^ Caption { String^ get() { return caption; } void set( String^ value ) { if ( caption != value ) { caption = value; } } } }; // Define a read-only property. public ref class Cproperty { private: String^ caption; public: Cproperty() : caption( "C Default caption" ) {} property String^ Caption { String^ get() { return caption; } } }; int main() { Console::WriteLine( "\nReflection.PropertyAttributes" ); // Determine whether a property exists, and change its value. Aproperty^ Mypropertya = gcnew Aproperty; Bproperty^ Mypropertyb = gcnew Bproperty; Cproperty^ Mypropertyc = gcnew Cproperty; Console::Write( "\n1. Mypropertya->Caption = {0}", Mypropertya->Caption ); Console::Write( "\n1. Mypropertyb->Caption = {0}", Mypropertyb->Caption ); Console::Write( "\n1. Mypropertyc->Caption = {0}", Mypropertyc->Caption ); // Only Mypropertya can be changed, as Mypropertyb is read-only. Mypropertya->Caption = "A- This is changed."; Mypropertyb->Caption = "B- This is changed."; // Note that Mypropertyc is not changed because it is read only Console::Write( "\n\n2. Mypropertya->Caption = {0}", Mypropertya->Caption ); Console::Write( "\n2. Mypropertyb->Caption = {0}", Mypropertyb->Caption ); Console::Write( "\n2. Mypropertyc->Caption = {0}", Mypropertyc->Caption ); // Get the PropertyAttributes enumeration of the property. // Get the type. Type^ MyTypea = Type::GetType( "Aproperty" ); Type^ MyTypeb = Type::GetType( "Bproperty" ); Type^ MyTypec = Type::GetType( "Cproperty" ); // Get the property attributes. PropertyInfo^ Mypropertyinfoa = MyTypea->GetProperty( "Caption" ); PropertyAttributes Myattributesa = Mypropertyinfoa->Attributes; PropertyInfo^ Mypropertyinfob = MyTypeb->GetProperty( "Item" ); PropertyAttributes Myattributesb = Mypropertyinfob->Attributes; PropertyInfo^ Mypropertyinfoc = MyTypec->GetProperty( "Caption" ); PropertyAttributes Myattributesc = Mypropertyinfoc->Attributes; // Display the property attributes value. Console::Write( "\n\na- {0}", Myattributesa ); Console::Write( "\nb- {0}", Myattributesb ); Console::Write( "\nc- {0}", Myattributesc ); return 0; } // This example displays the following output to the console // // Reflection.PropertyAttributes // // 1. Mypropertya.Caption = A Default caption // 1. Mypropertyb.Caption = B Default caption // 1. Mypropertyc.Caption = C Default caption // // 2. Mypropertya.Caption = A- This is changed. // 2. Mypropertyb.Caption = B- This is changed. // 2. Mypropertyc.Caption = C Default caption // // a- None // b- None // c- None
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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