说明：  Eh学习笔记 实际上，实现该功能非常简单（以下我以BDE为例说明如何实现自动排序）： 1.在窗体上放置一个 DBGridEh 组件，并将其连接到相应的 BDE 数据集； 2.将该组件的[OptionsEn]中的 dgAutoSortMarking 属性设置为 True 3.双击该组件，在其弹出的属性编辑器中添加相关字段； 4.将要排序的字段的属性列表的 [Title]的 TitleButton 属性设置为 True 5.最后，千万不要忘了在 uses 子句中加上 EhlibBDE单元。
(Eh study notes in fact, realize the functionality is very simple (following my example on how to realize BDE automatically sorted): 1. In the form to place a DBGridEh components, and linking them to the corresponding data sets BDE 2. the components [OptionsEn] in dgAutoSortMarking property is set to True 3. Double-click the component in its pop-up the Attribute Editor to add the relevant field 4. The field will be sort of the attribute list of [Title ] TitleButton the property is set to True 5. Finally, do not forget to add in the uses clause EhlibBDE unit.)