ToolboxItem.CreateComponentsCore Méthode

protected:
 virtual cli::array <System::ComponentModel::IComponent ^> ^ CreateComponentsCore(System::ComponentModel::Design::IDesignerHost ^ host);

protected virtual System.ComponentModel.IComponent[] CreateComponentsCore (System.ComponentModel.Design.IDesignerHost host);

protected virtual System.ComponentModel.IComponent[]? CreateComponentsCore (System.ComponentModel.Design.IDesignerHost? host);

abstract member CreateComponentsCore : System.ComponentModel.Design.IDesignerHost -> System.ComponentModel.IComponent[]
override this.CreateComponentsCore : System.ComponentModel.Design.IDesignerHost -> System.ComponentModel.IComponent[]

Protected Overridable Function CreateComponentsCore (host As IDesignerHost) As IComponent()

Paramètres

Retours

Tableau d'objets IComponent créés.

Remarques

Si host n’est pas null, la CreateComponentsCore méthode ajoute les nouveaux composants au concepteur.

Notes pour les héritiers

Vous pouvez remplacer la CreateComponentsCore(IDesignerHost) méthode pour retourner le ou les composants créés par un élément de boîte à outils.

Voir aussi

• IDesignerHost

protected:
 virtual cli::array <System::ComponentModel::IComponent ^> ^ CreateComponentsCore(System::ComponentModel::Design::IDesignerHost ^ host, System::Collections::IDictionary ^ defaultValues);

protected virtual System.ComponentModel.IComponent[] CreateComponentsCore (System.ComponentModel.Design.IDesignerHost host, System.Collections.IDictionary defaultValues);

protected virtual System.ComponentModel.IComponent[]? CreateComponentsCore (System.ComponentModel.Design.IDesignerHost? host, System.Collections.IDictionary? defaultValues);

abstract member CreateComponentsCore : System.ComponentModel.Design.IDesignerHost * System.Collections.IDictionary -> System.ComponentModel.IComponent[]
override this.CreateComponentsCore : System.ComponentModel.Design.IDesignerHost * System.Collections.IDictionary -> System.ComponentModel.IComponent[]

Protected Overridable Function CreateComponentsCore (host As IDesignerHost, defaultValues As IDictionary) As IComponent()

Paramètres

Retours

Tableau d'objets IComponent créés.

Exemples

L’exemple de code suivant illustre l’utilisation de la CreateComponentsCore méthode dans une classe dérivée de ToolboxItem pour une implémentation d’élément de boîte à outils personnalisée. Cet exemple de code fait partie d’un exemple plus grand fourni pour la ToolboxItem classe .

protected override IComponent[] CreateComponentsCore(
    System.ComponentModel.Design.IDesignerHost host, 
    System.Collections.IDictionary defaultValues)
{
    // Get the string we want to fill in the custom
    // user control.  If the user cancels out of the dialog,
    // return null or an empty array to signify that the 
    // tool creation was canceled.
    using (ToolboxItemDialog d = new ToolboxItemDialog())
    {
        if (d.ShowDialog() == DialogResult.OK)
        {
            string text = d.CreationText;

            IComponent[] comps =
                base.CreateComponentsCore(host, defaultValues);
            // comps will have a single component: our data type.
            ((UserControl1)comps[0]).LabelText = text;
            return comps;
        }
        else
        {
            return null;
        }
    }
}

Protected Overrides Function CreateComponentsCore( _
    ByVal host As System.ComponentModel.Design.IDesignerHost, _
    ByVal defaultValues As System.Collections.IDictionary) _
    As IComponent()
    ' Get the string we want to fill in the custom
    ' user control.  If the user cancels out of the dialog,
    ' return null or an empty array to signify that the 
    ' tool creation was canceled.
    Using d As New ToolboxItemDialog()
        If d.ShowDialog() = DialogResult.OK Then
            Dim [text] As String = d.CreationText
            Dim comps As IComponent() = _
                MyBase.CreateComponentsCore(host, defaultValues)
            ' comps will have a single component: our data type.
            CType(comps(0), UserControl1).LabelText = [text]
            Return comps
        Else
            Return Nothing
        End If
    End Using
End Function

Remarques

Si host n’est pas null, la CreateComponentsCore méthode ajoute les nouveaux composants au concepteur.