Delegate

Here's an example of how to use Delegate. In this example the page of a sheet is loaded when the sheet is opened and deleted when the sheet is closed.

Page { 
    attachedObjects: [
        Delegate {
            id: sheetPageDelegate
            Page {
                Container {
                    Button { 
                        text: "Close"
                        onClicked: {
                            sheet.close();
                        }
                    }
                }
            }
        },
        Sheet {
            id: sheet
            content: sheetPageDelegate.object
            onOpenedChanged: {
                if (opened)
                    sheetPageDelegate.active = true;
            }
            onClosed: {
                sheetPageDelegate.active = false;
            }
        }
    ]
    Container {
        Button { 
            text: "Open sheet" 
            onClicked: {
                sheet.open();
            }
        }
    }
}