internal BoxPlacement(IContainerEventSink <BoxPlacement> parent, Widget child)
{
this.parent = parent;
this.child = child;
}
internal NotebookTab(IContainerEventSink <NotebookTab> parent, Widget child)
{
this.child = child;
this.parent = parent;
}
internal Panel(IContainerEventSink <Panel> parent, int numPanel)
{
this.parent = parent;
this.numPanel = numPanel;
}
