In the sub-form, the Link slave field can be set as a field which will be matched to the contents of the Link master field. When the user navigates through the data, the form always displays the current data record.
在主窗体中指定数据字段的“链接”主字段。在子窗体中，“链接”从字段可设置为将与“链接”主字段的内容匹配的字段。