WinForm应用程序框架设计之WinAction（修改数据）

我们来先看看WinAction的修改数据的流程：

具体的参考代码：

 

         public   virtual   void  EditEntityHandler( object  entity,  object  caller,  object  sender, EventArgs e)
        {
             if  (caller  is  IDataListView)
            {
                IDataListView listForm  =  caller  as  IDataListView;
                 if  ( null   ==  listForm.DataList  ||  (listForm.DataList  is  ICollection  &&  (listForm.DataList  as  ICollection).Count  ==   0 ))
                     return ;
            }

            Form eForm  =  CallEditForm(caller);
             if  (eForm  is  IEditDataForm)
            {
                IEditDataForm mEditForm  =  eForm  as  IEditDataForm;
                 if  (eForm.Visible)
                {
                     if  (mEditForm.Entity  is  Entity  &&  (mEditForm.Entity  as  Entity).IsNewEntity) // 新增时进行修改
                    {
                         if  (caller  is  IDataControlActionView)
                        {
                             // 修改最后新增的记录
                             if  ((entity  as  Entity).IsNewEntity)
                            {
                                CommonFunctions.SetFormTop(eForm);
                                 return ;
                            }
                        }
                         if  (caller  is  IDataControlActionView  &&  caller  is  IDataListView  &&  (caller  as  IDataListView).DataList  is  IList)
                            (caller  as  IDataControlActionView).RemoveLastNewRow();
                         if  (caller  is  IDataControlActionView) // 已经执行过修改
                            UnloadEditEntityEvent(caller  as  IDataControlActionView);
                    }
                     else
                    {
                         if  (mEditForm  is  IBindEntityAware)
                            (mEditForm  as  IBindEntityAware).BindEntity(entity);
                        CommonFunctions.SetFormTop(eForm);
                         return ;
                    }
                }
                LoadEditForm(EditForm);
            }
             if  (eForm  is  IBindEntityAware)
                (eForm  as  IBindEntityAware).BindEntity(entity);
             if  (caller  is  IDataControlActionView)
                LoadEditEntityEvent(caller  as  IDataControlActionView);
             if  (eForm.Visible)
                CommonFunctions.SetFormTop(eForm);
             else
                eForm.Show();
        }

 

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