Specifies the name of the category in which to group the property or event when displayed in a PropertyGrid control set to Categorized mode.
Assembly: System (in System.dll)
Thetype exposes the following members.
|Action||Gets a representing the Action category.|
|Appearance||Gets a representing the Appearance category.|
|Asynchronous||Gets a representing the Asynchronous category.|
|Behavior||Gets a representing the Behavior category.|
|Category||Gets the name of the category for the property or event that this attribute is applied to.|
|Data||Gets a representing the Data category.|
|Default||Gets a representing the Default category.|
|Design||Gets a representing the Design category.|
|DragDrop||Gets a representing the DragDrop category.|
|Focus||Gets a representing the Focus category.|
|Format||Gets a representing the Format category.|
|Key||Gets a representing the Key category.|
|Layout||Gets a representing the Layout category.|
|Mouse||Gets a representing the Mouse category.|
|TypeId||When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)|
|WindowStyle||Gets a representing the WindowStyle category.|
|Equals||Returns whether the value of the given object is equal to the current .. (Overrides Attribute.Equals(Object).)|
|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||Returns the hash code for this attribute. (Overrides Attribute.GetHashCode().)|
|GetLocalizedString||Looks up the localized name of the specified category.|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|IsDefaultAttribute||Determines if this attribute is the default. (Overrides Attribute.IsDefaultAttribute().)|
|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.)|
|_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.)|
A indicates the category to associate the associated property or event with, when listing properties or events in a PropertyGrid control set to Categorized mode. If a has not been applied to a property or event, the PropertyGrid associates it with the Misc category. A new category can be created for any name by specifying the name of the category in the constructor for the .Notes to Inheritors
If you use category names other than the predefined names, and you want to localize your category names, you must override the GetLocalizedString method.
The class defines the following common categories:
Properties related to available actions.
Properties related to how an entity appears.
Properties related to how an entity acts.
Properties related to data and data source management.
Properties that are grouped in a default category.
Properties that are available only at design time.
Properties related to drag-and-drop operations.
Properties related to focus.
Properties related to formatting.
Properties related to the keyboard.
Properties related to layout.
Properties related to the mouse.
Properties related to the window style of top-level forms.
For more information, see Extending Metadata Using Attributes.
The following example creates the MyImage property. The property has two attributes: a DescriptionAttribute and a .
The next example gets the category for MyImage. First, the code gets a PropertyDescriptorCollection with all the properties for the object. Next, the code indexes into the PropertyDescriptorCollection to get MyImage. Then it returns the attributes for this property and saves them in the variable attributes.
The example then prints the category by retrieving from the AttributeCollection, and writing it to the console screen.
// Gets the attributes for the property. AttributeCollection attributes = TypeDescriptor.GetProperties(this)["MyImage"].Attributes; // Prints the description by retrieving the CategoryAttribute. // from the AttributeCollection. CategoryAttribute myAttribute = (CategoryAttribute)attributes[typeof(CategoryAttribute)]; Console.WriteLine(myAttribute.Category);
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.