Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at SalonWareCore.SWReservering.deleteRegel(Int32 index) in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\classes\v6\SWModels\SWReserveren\SWReservering.cs:line 196
   at SalonWareCore.core.components.portal.reserveren.b_winkelwagen.procesPost() in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\components\v6\portal\reserveren\b_winkelwagen.cs:line 62
   at SalonWareCore.SWComponent.getHTML() in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\components\SWComponent.cs:line 49
   at SalonWareCore.core.elements.portal.reserveren.stap2.getContent() in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\elements\v6\portal\reserveren\stap2.cs:line 45
   at SalonWareCore.SWModule.getHTML() in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\elements\SWModule.cs:line 84
   at SalonWareCore.SWRouter.getOutput() in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\classes\v7\SWSystem\SWRouter.cs:line 203
   at SalonWareCore.SWRouter.getTheHtml(String url, NameValueCollection post, NameValueCollection get) in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\classes\v7\SWSystem\SWRouter.cs:line 110
   at SalonWareCore.SWRouter.getHTML(String url, NameValueCollection post, NameValueCollection get) in D:\www\SalonWare6\SalonWare.NET\SalonWareCore\core\classes\v7\SWSystem\SWRouter.cs:line 50