大型应用程序设计(WPF/Silverlight)

除了MVVM以及WPF应用程序总体结构的MVC模式外,您如何将应用程序的模型/控制器方面分解为子组件?我问这个问题的原因是,我从上述模式的角度设计解决方案没有问题,但是当涉及到实际编写后端时;我觉得我在胡编乱造。从用户的角度来看,我最终得到了高质量的应用程序,但我的设计不允许我接受这一点。

编辑:代码请求(在Silverlight中)-以下是一个-片段-来自拖放分配应用程序中的mousebuttonup处理程序,该应用程序是更大应用程序的一部分-

我真的不喜欢这种逻辑有多迟钝,也讨厌它完全不可分解的方式,因为所有的东西都被塞进了事件处理程序中。

       //determine if there is a previously existing allocated sale corresponding to this purchase's ID

                SaleWS allocSaleExisting = colltoaddsale.FirstOrDefault(s => (s.p_TRADEID == allocPurch.TRADEID));


                if (allocSaleExisting != null && allocSale.TRADEID == allocSaleExisting.TRADEID)
                {
                    PurchaseWS allocPurchExisting = colltoadd.First(p => p.TRADEID == allocPurch.TRADEID);

                    //allocPurchExisting.AMOUNT += allocPurch.AMOUNT;
                    allocSaleExisting.AMOUNT += allocSale.AMOUNT;


                    allocPurchExisting.AMOUNT += allocSale.AMOUNT;
                    allocPurch.AMOUNT -= allocSale.AMOUNT;


                    colltoaddsale.Remove(allocSale);


                    //colltoadd.Remove(allocPurch);

                }

                else
                {


                    //Create new "split" item in the data source for the source table
                    PurchaseWS splitAllocPurch = new PurchaseWS { COMMODITY = allocPurch.COMMODITY, CONTRACTNUMBER = allocPurch.CONTRACTNUMBER, AMOUNT = allocPurch.AMOUNT - allocSale.AMOUNT, FORM = allocPurch.FORM, GRADE = allocPurch.GRADE, LOCATION = allocPurch.LOCATION, SHIP_DATE = allocPurch.SHIP_DATE, TRADEID = allocPurch.TRADEID, UNITS = allocPurch.UNITS };

                    //update the source table's selecteditem datacontext with the target allocation id

                    allocPurch.s_TRADEID = allocSale.TRADEID;

                    allocSale.p_TRADEID = allocPurch.TRADEID;

                    allocPurch.AMOUNT = allocSale.AMOUNT;




                    colltoadd.Insert(colltoadd.IndexOf(allocPurch) + 1, splitAllocPurch);







                }


            }