DesignerActionHeaderItem Clase

Definición

public ref class DesignerActionHeaderItem sealed : System::ComponentModel::Design::DesignerActionTextItem

public sealed class DesignerActionHeaderItem : System.ComponentModel.Design.DesignerActionTextItem

type DesignerActionHeaderItem = class
    inherit DesignerActionTextItem

Public NotInheritable Class DesignerActionHeaderItem
Inherits DesignerActionTextItem

Herencia

Object

DesignerActionItem

DesignerActionTextItem

DesignerActionHeaderItem

Ejemplos

En el ejemplo de código siguiente se muestra cómo crear una colección de objetos DesignerActionItem.

Para obtener un ejemplo completo de la implementación de etiquetas inteligentes, vea Cómo: Asociar etiquetas inteligentes a un componente de Windows Forms.

public override DesignerActionItemCollection GetSortedActionItems()
{
    DesignerActionItemCollection items = new DesignerActionItemCollection();

    //Define static section header entries.
    items.Add(new DesignerActionHeaderItem("Appearance"));
    items.Add(new DesignerActionHeaderItem("Information"));

    //Boolean property for locking color selections.
    items.Add(new DesignerActionPropertyItem("LockColors",
                     "Lock Colors", "Appearance",
                     "Locks the color properties."));
    if (!LockColors)
    {
        items.Add(new DesignerActionPropertyItem("BackColor",
                         "Back Color", "Appearance",
                         "Selects the background color."));
        items.Add(new DesignerActionPropertyItem("ForeColor",
                         "Fore Color", "Appearance",
                         "Selects the foreground color."));

        //This next method item is also added to the context menu 
        // (as a designer verb).
        items.Add(new DesignerActionMethodItem(this,
                         "InvertColors", "Invert Colors",
                         "Appearance",
                         "Inverts the fore and background colors.",
                          true));
    }
    items.Add(new DesignerActionPropertyItem("Text",
                     "Text String", "Appearance",
                     "Sets the display text."));

    //Create entries for static Information section.
    StringBuilder location = new StringBuilder("Location: ");
    location.Append(colLabel.Location);
    StringBuilder size = new StringBuilder("Size: ");
    size.Append(colLabel.Size);
    items.Add(new DesignerActionTextItem(location.ToString(),
                     "Information"));
    items.Add(new DesignerActionTextItem(size.ToString(),
                     "Information"));

    return items;
}

Public Overrides Function GetSortedActionItems() _
As DesignerActionItemCollection
    Dim items As New DesignerActionItemCollection()

    'Define static section header entries.
    items.Add(New DesignerActionHeaderItem("Appearance"))
    items.Add(New DesignerActionHeaderItem("Information"))

    'Boolean property for locking color selections.
    items.Add(New DesignerActionPropertyItem( _
    "LockColors", _
    "Lock Colors", _
    "Appearance", _
    "Locks the color properties."))

    If Not LockColors Then
        items.Add( _
        New DesignerActionPropertyItem( _
        "BackColor", _
        "Back Color", _
        "Appearance", _
        "Selects the background color."))

        items.Add( _
        New DesignerActionPropertyItem( _
        "ForeColor", _
        "Fore Color", _
        "Appearance", _
        "Selects the foreground color."))

        'This next method item is also added to the context menu 
        ' (as a designer verb).
        items.Add( _
        New DesignerActionMethodItem( _
        Me, _
        "InvertColors", _
        "Invert Colors", _
        "Appearance", _
        "Inverts the fore and background colors.", _
        True))
    End If
    items.Add( _
    New DesignerActionPropertyItem( _
    "Text", _
    "Text String", _
    "Appearance", _
    "Sets the display text."))

    'Create entries for static Information section.
    Dim location As New StringBuilder("Location: ")
    location.Append(colLabel.Location)
    Dim size As New StringBuilder("Size: ")
    size.Append(colLabel.Size)

    items.Add( _
    New DesignerActionTextItem( _
    location.ToString(), _
    "Information"))

    items.Add( _
    New DesignerActionTextItem( _
    size.ToString(), _
    "Information"))

    Return items
End Function

Comentarios

Al igual que la clase base DesignerActionTextItem, DesignerActionHeaderItem representa elementos de texto estático individuales en un panel de etiquetas inteligentes. Sin embargo, DesignerActionHeaderItem entradas se muestran con texto en negrita. Normalmente, se usa un elemento de encabezado para crear un encabezado para un grupo de elementos de un panel. Al hacer clic en un elemento de encabezado no se produce ninguna acción.

Los elementos de panel individuales se asocian para formar un panel llamando al método GetSortedActionItems de la clase DesignerActionList.

Constructores

Propiedades

Métodos

Se aplica a

Consulte también

• GetSortedActionItems()
• comandos del diseñador de y el modelo de objetos DesignerAction para windows Forms