WWUPWPPP

//Verze 2.2012.168.1
//DOMOV
//Windows XP Home Edition Service Pack 3 v5.1.2600
//8.1.2013 9:32:29

System.ArgumentNullException: Value cannot be null.
Parameter name: item
   at HashSet`1.Add(T item)
   at Elite.Objects.DekursChanges.GetPacientList(KonfigPrepisy filtr)
   at Elite.BussinesLogic.DekursManager.ApplyChanges(UnitOfWork uow, KonfigPrepisy filtr)
   at Elite.Gui.Controls.ReceptEditControl.AfterCommit()
   at Elite.Gui.Controls.EditControl.DoSave()
   at Elite.Gui.Controls.BaseControl.DoPrint()
   at Elite.Gui.Controls.ReceptEditControl.ActionTisk()
   at Elite.Gui.Controls.ReceptEditControl.bbTisk_ItemClick(Object sender, ItemClickEventArgs e)
   at DevExpress.XtraBars.BarItem.OnClick(BarItemLink link)
   at DevExpress.XtraBars.BarBaseButtonItem.OnClick(BarItemLink link)
   at DevExpress.XtraBars.BarItemLink.OnLinkClick()
   at DevExpress.XtraBars.BarItemLink.OnLinkAction(BarLinkAction action, Object actionArgs)
   at DevExpress.XtraBars.BarButtonItemLink.OnLinkAction(BarLinkAction action, Object actionArgs)
   at DevExpress.XtraBars.BarItemLink.OnLinkActionCore(BarLinkAction action, Object actionArgs)
   at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.ClickLink(BarItemLink link)
   at DevExpress.XtraBars.ViewInfo.BarSelectionInfo.UnPressLink(BarItemLink link)
   at DevExpress.XtraBars.Controls.CustomLinksControl.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at DevExpress.XtraBars.Controls.DockedBarControl.WndProc(Message& msg)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)