PropertyTabAttribute Class
Identifies the property tab or tabs to display for the specified class or classes.
Assembly: System (in System.dll)
The PropertyTabAttribute type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | PropertyTabAttribute() | Initializes a new instance of the PropertyTabAttribute class. |
![]() | PropertyTabAttribute(String) | Initializes a new instance of the PropertyTabAttribute class using the specified tab class name. |
![]() | PropertyTabAttribute(Type) | Initializes a new instance of the PropertyTabAttribute class using the specified type of tab. |
![]() | PropertyTabAttribute(String, PropertyTabScope) | Initializes a new instance of the PropertyTabAttribute class using the specified tab class name and tab scope. |
![]() | PropertyTabAttribute(Type, PropertyTabScope) | Initializes a new instance of the PropertyTabAttribute class using the specified type of tab and tab scope. |
| Name | Description | |
|---|---|---|
![]() | TabClasses | Gets the types of tabs that this attribute uses. |
![]() | TabClassNames | Gets the names of the tab classes that this attribute uses. |
![]() | TabScopes | Gets an array of tab scopes of each tab of this PropertyTabAttribute. |
![]() | TypeId | When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.) |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Returns a value indicating whether this instance is equal to a specified object. (Overrides Attribute::Equals(Object).) |
![]() | Equals(PropertyTabAttribute) | Returns a value indicating whether this instance is equal to a specified attribute. |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Gets the hash code for this object. (Overrides Attribute::GetHashCode().) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | InitializeArrays(array<String>, array<PropertyTabScope>) | Initializes the attribute using the specified names of tab classes and array of tab scopes. |
![]() | InitializeArrays(array<Type>, array<PropertyTabScope>) | Initializes the attribute using the specified names of tab classes and array of tab scopes. |
![]() | IsDefaultAttribute | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.) |
![]() | Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | _Attribute::GetIDsOfNames | Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfo | Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfoCount | Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.) |
![]() ![]() | _Attribute::Invoke | Provides access to properties and methods exposed by an object. (Inherited from Attribute.) |
The PropertyTabAttribute lets you add a new property page to a PropertyGrid control. The PropertyTabAttribute can add additional property tabs to expose property information other than a component's default set of properties.
The following code example demonstrates how to use the PropertyTabAttribute to specify a property tab. The code example defines a component that exposes the properties of another selected component by type.
#using <System.Windows.Forms.dll> #using <System.Drawing.dll> #using <System.dll> using namespace System; using namespace System::ComponentModel; using namespace System::ComponentModel::Design; using namespace System::Drawing; using namespace System::IO; using namespace System::Reflection; using namespace System::Runtime::Serialization; using namespace System::Runtime::Serialization::Formatters::Binary; using namespace System::Windows::Forms; using namespace System::Windows::Forms::Design; using namespace System::Security::Permissions; namespace TypeCategoryTabExample { ref class TypeCategoryTab; // forward declaration. // This component adds a TypeCategoryTab to the propery browser // that is available for any components in the current design mode document. [PropertyTabAttribute(TypeCategoryTabExample::TypeCategoryTab::typeid,PropertyTabScope::Document)] public ref class TypeCategoryTabComponent: public System::ComponentModel::Component { public: TypeCategoryTabComponent(){} }; // A TypeCategoryTab property tab lists properties by the // category of the type of each property. public ref class TypeCategoryTab: public PropertyTab { private: // This String^ contains a Base-64 encoded and serialized example property tab image. [BrowsableAttribute(true)] String^ img; public: TypeCategoryTab() { img = "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"; } // Returns the properties of the specified component extended with // a CategoryAttribute reflecting the name of the type of the property. [ReflectionPermission(SecurityAction::Demand, Flags=ReflectionPermissionFlag::MemberAccess)] virtual System::ComponentModel::PropertyDescriptorCollection^ GetProperties( Object^ component, array<System::Attribute^>^attributes ) override { PropertyDescriptorCollection^ props; if ( attributes == nullptr ) props = TypeDescriptor::GetProperties( component ); else props = TypeDescriptor::GetProperties( component, attributes ); array<PropertyDescriptor^>^propArray = gcnew array<PropertyDescriptor^>(props->Count); for ( int i = 0; i < props->Count; i++ ) { // Create a new PropertyDescriptor from the old one, with // a CategoryAttribute matching the name of the type. array<Attribute^>^temp0 = {gcnew CategoryAttribute( props[ i ]->PropertyType->Name )}; propArray[ i ] = TypeDescriptor::CreateProperty( props[ i ]->ComponentType, props[ i ], temp0 ); } return gcnew PropertyDescriptorCollection( propArray ); } virtual System::ComponentModel::PropertyDescriptorCollection^ GetProperties( Object^ component ) override { return this->GetProperties( component, nullptr ); } property String^ TabName { // Provides the name for the property tab. virtual String^ get() override { return "Properties by Type"; } } property System::Drawing::Bitmap^ Bitmap { // Provides an image for the property tab. virtual System::Drawing::Bitmap^ get() override { System::Drawing::Bitmap^ bmp = gcnew System::Drawing::Bitmap( DeserializeFromBase64Text( img ) ); return bmp; } } private: // This method can be used to retrieve an Image from a block of Base64-encoded text. Image^ DeserializeFromBase64Text( String^ text ) { Image^ img = nullptr; array<Byte>^memBytes = Convert::FromBase64String( text ); IFormatter^ formatter = gcnew BinaryFormatter; MemoryStream^ stream = gcnew MemoryStream( memBytes ); img = dynamic_cast<Image^>(formatter->Deserialize( stream )); stream->Close(); return img; } }; }
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.
