ProvidePropertyAttribute Class
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ProvidePropertyAttribute Class


Specifies the name of the property that an implementer of IExtenderProvider offers to other components. This class cannot be inherited

Namespace:   System.ComponentModel
Assembly:  System (in System.dll)


[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true)]
public sealed class ProvidePropertyAttribute : Attribute

System_CAPS_pubmethodProvidePropertyAttribute(String, String)

Initializes a new instance of the ProvidePropertyAttribute class with the name of the property and the type of its receiver.

System_CAPS_pubmethodProvidePropertyAttribute(String, Type)

Initializes a new instance of the ProvidePropertyAttribute class with the name of the property and its Type.


Gets the name of a property that this class provides.


Gets the name of the data type this property can extend.


Gets a unique identifier for this attribute.(Overrides Attribute.TypeId.)


Returns whether the value of the given object is equal to the current ProvidePropertyAttribute.(Overrides Attribute.Equals(Object).)


Returns the hash code for this instance.(Overrides Attribute.GetHashCode().)


Gets the Type of the current instance.(Inherited from Object.)


When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)


When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)


Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)


Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

When you mark a class with this attribute, you tell the code generator to create an extender property with the name you provide. The marked class must implement IExtenderProvider. As a result, the new property can be used by other components in a container.

Within the marked class, you must implement Get <name> and Set <name> methods. For example, if you mark a class with [ProvideProperty("PropertyName")], you must implement GetPropertyName and SetPropertyName methods. To specify that the new property will be an extender property, you must implement from IExtenderProvider, you must also implement a CanExtend method.

For more information, see Extending Metadata Using Attributes.

The following example marks MyClass with a ProvidePropertyAttribute that tells the compiler to create a property called MyProperty from the GetMyProperty and SetMyProperty methods.

[ProvideProperty("MyProperty", typeof(Control))]
public class MyClass : IExtenderProvider {
    protected CultureInfo ciMine = null;
    // Provides the Get portion of MyProperty. 
    public CultureInfo GetMyProperty(Control myControl) {
        // Insert code here.
        return ciMine;

    // Provides the Set portion of MyProperty.
    public void SetMyProperty(Control myControl, string value) {
        // Insert code here.

    /* When you inherit from IExtenderProvider, you must implement the 
     * CanExtend method. */
    public bool CanExtend(Object target) {
        return(target is Control);

    // Insert additional code here.

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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