DesignerAttribute DesignerAttribute DesignerAttribute DesignerAttribute Class

Definition

Especifica la clase utilizada para implementar, en tiempo de diseño, los servicios para un componente. Specifies the class used to implement design-time services for a component.

public ref class DesignerAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Interface, AllowMultiple=true, Inherited=true)]
public sealed class DesignerAttribute : Attribute
type DesignerAttribute = class
    inherit Attribute
Public NotInheritable Class DesignerAttribute
Inherits Attribute
Inheritance
DesignerAttributeDesignerAttributeDesignerAttributeDesignerAttribute
Attributes

Examples

En el ejemplo siguiente se crea una clase denominada MyForm.The following example creates a class called MyForm. MyForm tiene dos atributos, un DesignerAttribute que especifica que esta clase usa el DocumentDesignery un DesignerCategoryAttribute que especifica el Form categoría.MyForm has two attributes, a DesignerAttribute that specifies this class uses the DocumentDesigner, and a DesignerCategoryAttribute that specifies the Form category.

[Designer("System.Windows.Forms.Design.DocumentDesigner, System.Windows.Forms.Design.DLL",
IRootDesigner::typeid),
DesignerCategory("Form")]
ref class MyForm: public ContainerControl{
   // Insert code here.
};
[Designer("System.Windows.Forms.Design.DocumentDesigner, System.Windows.Forms.Design.DLL", 
    typeof(IRootDesigner)),
    DesignerCategory("Form")]
public class MyForm : ContainerControl {
    // Insert code here.
}
<Designer("System.Windows.Forms.Design.DocumentDesigner, System.Windows.Forms.Design.DLL", _
    GetType(IRootDesigner)), DesignerCategory("Form")> _
Public Class MyForm
    
    Inherits ContainerControl
    ' Insert code here.
End Class 'MyForm

En el ejemplo siguiente se crea una instancia de MyForm.The next example creates an instance of MyForm. A continuación, obtiene los atributos de la clase, extrae el DesignerAttribute, e imprime el nombre del diseñador.Then it gets the attributes for the class, extracts the DesignerAttribute, and prints the name of the designer.

int main()
{
   // Creates a new form.
   MyForm^ myNewForm = gcnew MyForm;

   // Gets the attributes for the collection.
   AttributeCollection^ attributes = TypeDescriptor::GetAttributes( myNewForm );

   /* Prints the name of the designer by retrieving the DesignerAttribute
       * from the AttributeCollection. */
   DesignerAttribute^ myAttribute = dynamic_cast<DesignerAttribute^>(attributes[ DesignerAttribute::typeid ]);
   Console::WriteLine( "The designer for this class is: {0}", myAttribute->DesignerTypeName );
   return 0;
}
public static int Main() {
    // Creates a new form.
    MyForm myNewForm = new MyForm();
 
    // Gets the attributes for the collection.
    AttributeCollection attributes = TypeDescriptor.GetAttributes(myNewForm);
 
    /* Prints the name of the designer by retrieving the DesignerAttribute
     * from the AttributeCollection. */
    DesignerAttribute myAttribute = 
       (DesignerAttribute)attributes[typeof(DesignerAttribute)];
    Console.WriteLine("The designer for this class is: " + myAttribute.DesignerTypeName);
  
    return 0;
}
Public Shared Function Main() As Integer
    ' Creates a new form.
    Dim myNewForm As New MyForm()
    
    ' Gets the attributes for the collection.
    Dim attributes As AttributeCollection = TypeDescriptor.GetAttributes(myNewForm)
    
    ' Prints the name of the designer by retrieving the DesignerAttribute
    ' from the AttributeCollection. 
    Dim myAttribute As DesignerAttribute = _
        CType(attributes(GetType(DesignerAttribute)), DesignerAttribute)
    Console.WriteLine(("The designer for this class is: " & myAttribute.DesignerTypeName))
    
    Return 0
End Function 'Main

Remarks

La clase que se utiliza para los servicios de tiempo de diseño debe implementar la IDesigner interfaz.The class you use for the design-time services must implement the IDesigner interface.

Use el DesignerBaseTypeName propiedad que se va a buscar el tipo base del diseñador.Use the DesignerBaseTypeName property to find the designer's base type. Use el DesignerTypeName propiedad va a obtener el nombre del tipo de diseñador asociado a este miembro.Use the DesignerTypeName property to get the name of the type of designer associated with this member.

Para obtener más información, consulte Attributes (Atributos).For more information, see Attributes.

Constructors

DesignerAttribute(String) DesignerAttribute(String) DesignerAttribute(String) DesignerAttribute(String)

Inicializa una nueva instancia de la clase DesignerAttribute con el nombre del tipo que proporciona los servicios en tiempo de diseño. Initializes a new instance of the DesignerAttribute class using the name of the type that provides design-time services.

DesignerAttribute(String, String) DesignerAttribute(String, String) DesignerAttribute(String, String) DesignerAttribute(String, String)

Inicializa una nueva instancia de la clase DesignerAttribute con el tipo del diseñador y la clase base del diseñador. Initializes a new instance of the DesignerAttribute class using the designer type and the base class for the designer.

DesignerAttribute(String, Type) DesignerAttribute(String, Type) DesignerAttribute(String, Type) DesignerAttribute(String, Type)

Inicializa una nueva instancia de la clase DesignerAttribute con el nombre de la clase de diseñador y la clase base del diseñador. Initializes a new instance of the DesignerAttribute class, using the name of the designer class and the base class for the designer.

DesignerAttribute(Type) DesignerAttribute(Type) DesignerAttribute(Type) DesignerAttribute(Type)

Inicializa una nueva instancia de la clase DesignerAttribute con el tipo que proporciona los servicios en tiempo de diseño. Initializes a new instance of the DesignerAttribute class using the type that provides design-time services.

DesignerAttribute(Type, Type) DesignerAttribute(Type, Type) DesignerAttribute(Type, Type) DesignerAttribute(Type, Type)

Inicializa una nueva instancia de la clase DesignerAttribute con los tipos del diseñador y de la clase base del diseñador. Initializes a new instance of the DesignerAttribute class using the types of the designer and designer base class.

Properties

DesignerBaseTypeName DesignerBaseTypeName DesignerBaseTypeName DesignerBaseTypeName

Obtiene el nombre del tipo base de este diseñador. Gets the name of the base type of this designer.

DesignerTypeName DesignerTypeName DesignerTypeName DesignerTypeName

Obtiene el nombre del tipo de diseñador asociado a este atributo de diseñador. Gets the name of the designer type associated with this designer attribute.

TypeId TypeId TypeId TypeId

Obtiene un Identificador único para este tipo de atributo. Gets a unique ID for this attribute type.

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Devuelve un valor que indica si el valor del objeto especificado es igual al atributo DesignerAttribute actual. Returns whether the value of the given object is equal to the current DesignerAttribute.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Devuelve el código hash de esta instancia. Returns the hash code for this instance.

GetType() GetType() GetType() GetType()

Obtiene el Type de la instancia actual. Gets the Type of the current instance.

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute()

Si se reemplaza en una clase derivada, indica si el valor de esta instancia es el valor predeterminado de la clase derivada. 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(Object) Match(Object) Match(Object) Match(Object)

Cuando se invalida en una clase derivada, devuelve un valor que indica si esta instancia es igual a un objeto especificado. When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficial del Object actual. Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Devuelve una cadena que representa el objeto actual. Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

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

Asigna un conjunto de nombres a un conjunto correspondiente de identificadores de envío. Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Obtiene la información de tipos de un objeto, que puede utilizarse para obtener la información de tipos de una interfaz. Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

Recupera el número de interfaces de información de tipo que proporciona un objeto (0 ó 1). Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Proporciona acceso a las propiedades y los métodos expuestos por un objeto. Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Applies to

See Also