摘要： usingSystem;usingSystem.ComponentModel;usingDevExpress.Xpo;usingDevExpress.Data.Filtering;usingDevExpress.ExpressApp;usingDevExpress.Persistent.Base;usingDevExpress.Persistent.BaseImpl;usingDevExpress.Persistent.Validation;namespaceDXExample.Module{[DefaultClassOptions]publicclassPO:BaseObject{publi 阅读全文