摘要：publicvoidUpdate(stringstr){try{userDB=newUserDataContext(UserDataContext.DBConnectionString);vartables=userDB.UserTables.SingleOrDefault<UserTable>(x=>x.ID==1);if(tables!=null){tables.Name=str;}userDB.SubmitChanges();MessageBox.Show("修改姓名成功！");}catch{MessageBox.Show("数据库中表数据 阅读全文