/// <summary>
 /// Initializes a new ToolbarCheckGroup instance.
 /// </summary>
 public ToolbarCheckGroup()
     : base()
 {
     _Items = new ToolbarCheckButtonCollection(this);
     _HoverStyle = new CssCollection();
     _SelectedStyle = new CssCollection();
 }
 /// <summary>
 /// Initializes a new ToolbarCheckGroup instance.
 /// </summary>
 public ToolbarCheckGroup() : base()
 {
     _Items         = new ToolbarCheckButtonCollection(this);
     _HoverStyle    = new CssCollection();
     _SelectedStyle = new CssCollection();
 }