public BaseItemStackEx()
 {
     //this.m_TopButton = new TopButton(this);
     //this.m_BottomButton = new BottomButton(this);
     //this.m_LeftButton = new LeftButton(this);
     //this.m_RightButton = new RightButton(this);
     this.m_PreButton  = new PreButtonItem(this);
     this.m_NextButton = new NextButtonItem(this);
 }
 public BaseItemStackExItem()
 {
     this.m_PreButton  = new PreButtonItem(this);
     this.m_NextButton = new NextButtonItem(this);
 }