DesignerVerb Clase

Definición

Espacio de nombres:

System.ComponentModel.Design

Ensamblado:

System.ComponentModel.TypeConverter.dll

Source:

DesignerVerb.cs

Representa un verbo que se puede invocar desde un diseñador.

public ref class DesignerVerb : System::ComponentModel::Design::MenuCommand

public class DesignerVerb : System.ComponentModel.Design.MenuCommand

type DesignerVerb = class
    inherit MenuCommand

Public Class DesignerVerb
Inherits MenuCommand

Herencia

Object

MenuCommand

DesignerVerb

Derivado

System.Web.UI.Design.TemplateEditingVerb

System.Workflow.ComponentModel.Design.ActivityDesignerVerb

Ejemplos

En el ejemplo de código siguiente se muestra cómo crear DesignerVerb objetos y agregarlos al menú contextual en tiempo de diseño de un componente.

#using <system.dll>
#using <system.design.dll>
#using <system.windows.forms.dll>

using namespace System;
using namespace System::ComponentModel;
using namespace System::ComponentModel::Design;
using namespace System::Windows::Forms;

/* This sample demonstrates a designer that adds menu commands
to the design-time shortcut menu for a component.

To test this sample, build the code for the component as a class library,
add the resulting component to the toolbox, open a form in design mode,
and drag the component from the toolbox onto the form.

The component should appear in the component tray beneath the form.
Right-click the component.  The verbs should appear in the shortcut menu.
*/
// This is a designer class which provides designer verb menu commands for
// the associated component. This code is called by the design environment at design-time.
private ref class MyDesigner: public ComponentDesigner
{
public:

   property DesignerVerbCollection^ Verbs 
   {
      // DesignerVerbCollection is overridden from ComponentDesigner
      virtual DesignerVerbCollection^ get() override
      {
         if ( m_Verbs == nullptr )
         {
            // Create and initialize the collection of verbs
            m_Verbs = gcnew DesignerVerbCollection;
            m_Verbs->Add( gcnew DesignerVerb( "First Designer Verb",gcnew EventHandler( this, &MyDesigner::OnFirstItemSelected ) ) );
            m_Verbs->Add( gcnew DesignerVerb( "Second Designer Verb",gcnew EventHandler( this, &MyDesigner::OnSecondItemSelected ) ) );
         }

         return m_Verbs;
      }
   }
   MyDesigner(){}

private:
   DesignerVerbCollection^ m_Verbs;
   void OnFirstItemSelected( Object^ /*sender*/, EventArgs^ /*args*/ )
   {
      // Display a message
      MessageBox::Show( "The first designer verb was invoked." );
   }

   void OnSecondItemSelected( Object^ /*sender*/, EventArgs^ /*args*/ )
   {
      // Display a message
      MessageBox::Show( "The second designer verb was invoked." );
   }
};

// Associate MyDesigner with this component type using a DesignerAttribute
[Designer(MyDesigner::typeid)]
public ref class Component1: public System::ComponentModel::Component{};

using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;

/* This sample demonstrates a designer that adds menu commands
    to the design-time shortcut menu for a component.

    To test this sample, build the code for the component as a class library, 
    add the resulting component to the toolbox, open a form in design mode, 
    and drag the component from the toolbox onto the form. 

    The component should appear in the component tray beneath the form. 
    Right-click the component.  The verbs should appear in the shortcut menu.
*/

namespace CSDesignerVerb
{
    // Associate MyDesigner with this component type using a DesignerAttribute
    [Designer(typeof(MyDesigner))]
    public class Component1 : System.ComponentModel.Component
    {
    }

    // This is a designer class which provides designer verb menu commands for 
    // the associated component. This code is called by the design environment at design-time.
    internal class MyDesigner : ComponentDesigner
    {
        DesignerVerbCollection m_Verbs;

        // DesignerVerbCollection is overridden from ComponentDesigner
        public override DesignerVerbCollection Verbs
        {
            get 
            {
                if (m_Verbs == null) 
                {
                    // Create and initialize the collection of verbs
                    m_Verbs = new DesignerVerbCollection();
            
                    m_Verbs.Add( new DesignerVerb("First Designer Verb", new EventHandler(OnFirstItemSelected)) );
                    m_Verbs.Add( new DesignerVerb("Second Designer Verb", new EventHandler(OnSecondItemSelected)) );
                }
                return m_Verbs;
            }
        }

        MyDesigner() 
        {
        }

        private void OnFirstItemSelected(object sender, EventArgs args) 
        {
            // Display a message
            System.Windows.Forms.MessageBox.Show("The first designer verb was invoked.");
        }

        private void OnSecondItemSelected(object sender, EventArgs args) 
        {
            // Display a message
            System.Windows.Forms.MessageBox.Show("The second designer verb was invoked.");
        }
    }
}

Imports System.ComponentModel
Imports System.Collections
Imports System.ComponentModel.Design

'  This sample demonstrates a designer that adds menu commands
'   to the design-time shortcut menu for a component.
'
'   To test this sample, build the code for the component as a class library, 
'   add the resulting component to the toolbox, open a form in design mode, 
'   and drag the component from the toolbox onto the form. 
'
'   The component should appear in the component tray beneath the form. 
'   Right-click the component.  The verbs should appear in the shortcut menu.

Namespace VBDesignerVerb
    ' Associate MyDesigner with this component type using a DesignerAttribute
    <Designer(GetType(MyDesigner))> _
    Public Class Component1
        Inherits System.ComponentModel.Component
    End Class 


    '  This is a designer class which provides designer verb menu commands for 
    '  the associated component. This code is called by the design environment at design-time.    
    Friend Class MyDesigner
        Inherits ComponentDesigner

        Private m_Verbs As DesignerVerbCollection

        ' DesignerVerbCollection is overridden from ComponentDesigner
        Public Overrides ReadOnly Property Verbs() As DesignerVerbCollection
            Get
                If m_Verbs Is Nothing Then
                    ' Create and initialize the collection of verbs
                    m_Verbs = New DesignerVerbCollection()
                    m_Verbs.Add( New DesignerVerb("First Designer Verb", New EventHandler(AddressOf OnFirstItemSelected)) )
                    m_Verbs.Add( New DesignerVerb("Second Designer Verb", New EventHandler(AddressOf OnSecondItemSelected)) )
                End If
                Return m_Verbs
            End Get
        End Property

        Sub New()
        End Sub 

        Private Sub OnFirstItemSelected(ByVal sender As Object, ByVal args As EventArgs)
            ' Display a message
            System.Windows.Forms.MessageBox.Show("The first designer verb was invoked.")
        End Sub 

        Private Sub OnSecondItemSelected(ByVal sender As Object, ByVal args As EventArgs)
            ' Display a message
            System.Windows.Forms.MessageBox.Show("The second designer verb was invoked.")
        End Sub 
    End Class 
End Namespace

Comentarios

Un verbo de diseñador es un comando de menú vinculado a un controlador de eventos. Los verbos de diseñador se agregan al menú contextual de un componente en tiempo de diseño. En Visual Studio, también se muestra cada verbo del diseñador, mediante , LinkLabelen el panel Descripción del ventana Propiedades.

Constructores

DesignerVerb(String, EventHandler)	Inicializa una nueva instancia de la clase DesignerVerb.
DesignerVerb(String, EventHandler, CommandID)	Inicializa una nueva instancia de la clase DesignerVerb.

Propiedades

Checked	Obtiene o establece un valor que indica si el elemento de menú está activado. (Heredado de MenuCommand)
CommandID	Obtiene el CommandID asociado al comando de menú. (Heredado de MenuCommand)
Description	Obtiene o establece la descripción del elemento de menú para el verbo.
Enabled	Obtiene un valor que indica si el elemento de menú está disponible. (Heredado de MenuCommand)
OleStatus	Obtiene el código de estado del comando OLE para el elemento de menú. (Heredado de MenuCommand)
Properties	Obtiene las propiedades públicas asociadas a la clase MenuCommand. (Heredado de MenuCommand)
Supported	Obtiene o establece un valor que indica si se admite el elemento de menú. (Heredado de MenuCommand)
Text	Obtiene la descripción de texto para el comando de verbo del menú.
Visible	Obtiene o establece un valor que indica si el elemento de menú es visible. (Heredado de MenuCommand)

Métodos

Equals(Object)	Determina si el objeto especificado es igual que el objeto actual. (Heredado de Object)
GetHashCode()	Sirve como la función hash predeterminada. (Heredado de Object)
GetType()	Obtiene el Type de la instancia actual. (Heredado de Object)
Invoke()	Invoca el comando. (Heredado de MenuCommand)
Invoke(Object)	Llama al comando con el parámetro determinado. (Heredado de MenuCommand)
MemberwiseClone()	Crea una copia superficial del Object actual. (Heredado de Object)
OnCommandChanged(EventArgs)	Genera el evento CommandChanged. (Heredado de MenuCommand)
ToString()	Invalida ToString().

Eventos

CommandChanged

Se produce cuando cambia el comando de menú. (Heredado de MenuCommand)

Consulte también

• MenuCommand
• IMenuCommandService