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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