c# - Entity framework incorrect data returned from linq select -

-

i'm new using entity framework, maybe i'm doing wrong, following code isn't working way i'd expect to:

productentities dbcustomerrefresh = new productentities(); int16 delay = 5000; while(true) {     var pendingfaults = (from f in dbcustomerrefresh.faults f.lrefreshstatus == 1 select f);     foreach(fault f in pendingfaults)     {         log.debugformat("initial refresh status fault {0} {1}", f.lfaultid.tostring(), f.lrefreshstatus.tostring());         f.lrefreshstatus = 2;         log.debugformat("changed refresh status fault: {0} {1}", f.lfaultid.tostring(),f.lrefreshstatus.tostring());     }     log.debugformat("saved {0} rows losch database",dbcustomerrefresh.savechanges().tostring());     thread.sleep(delay); }

this works expected first time round loop, i.e. picks every row in db has lrefreshstatus set 1, changes 2 , prints debug.

i go database , manually change lrefreshstatus 1 given row. on next loop round, program picks status has changed again, initial values in variable wrong.

2015-07-30 09:27:17,137 [10] debug customerservice - initial refresh status fault 101380 1 2015-07-30 09:27:17,137 [10] debug customerservice - changed refresh status fault: 101380 2 2015-07-30 09:27:17,292 [10] debug customerservice - saved 1 rows product database 2015-07-30 09:27:22,297 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:27,304 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:32,313 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:37,318 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:42,327 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:47,336 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:52,341 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:27:57,346 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:02,356 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:07,361 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:12,366 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:17,371 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:22,378 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:27,384 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:32,390 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:37,396 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:42,405 [10] debug customerservice - initial refresh status fault 101380 2 2015-07-30 09:28:42,405 [10] debug customerservice - changed refresh status fault: 101380 2 2015-07-30 09:28:42,405 [10] debug customerservice - saved 0 rows product database 2015-07-30 09:28:47,410 [10] debug customerservice - initial refresh status fault 101380 2 2015-07-30 09:28:47,410 [10] debug customerservice - changed refresh status fault: 101380 2 2015-07-30 09:28:47,411 [10] debug customerservice - saved 0 rows product database

its bizarre. select must pick value of fault status has changed 1 or wouldn't in pendingfaults variable, when go access property, set 2.

does not dispose of old f variable first time around, , give me again on second loop?

check this.

productentities dbcustomerrefresh = new productentities(); int16 delay = 5000; while(true) {     var pendingfaults = (from f in dbcustomerrefresh.faults f.lrefreshstatus == 1 select f);     foreach(fault f in pendingfaults)     {         log.debugformat("initial refresh status fault {0} {1}", f.lfaultid.tostring(), f.lrefreshstatus.tostring());         f.lrefreshstatus = 2;         log.debugformat("changed refresh status fault: {0} {1}", f.lfaultid.tostring(),f.lrefreshstatus.tostring()); log.debugformat("saved {0} rows losch database",dbcustomerrefresh.savechanges().tostring());     }  thread.sleep(delay); }

see if makes difference.


Comments

Post a Comment

Popular posts from this blog

qt - Using float or double for own QML classes -

-
i've created components , helper methods using c++ , qt used in qml gui. of methods calculate gui elements (size, transformations, scene graph items creation). target arm 32 bit using opengl / eglfs render output. opengl using float , qml using real (defined double ). what should use in c++ do not lose precision? if use qreal ( double ) shouldn't lose precision. if git grep float in qtbase.git , can find out bit more: dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0-* important behavior changes * dist/changes-5.2.0-**************************************************************************** dist/changes-5.2.0- dist/changes-5.2.0- - qt compiled qreal typedef'ed double on dist/changes-5.2.0: platforms. qreal float on arm chipsets before. guarantees more dist/changes-5.2.0- consistent behavior between platforms qt supports, binary dist/chan...
Read more

Create Outlook appointment via C# .Net -

-
i need create outlook appointment using microsoft.office.interop.outlook , while can work locally on own workstation , works if run web application via server's browser, not work when connect server externally. hence, think might permission issue. i changed application pool identity " localsystem " don't access denied error. unfortunately, doesn't work. the app behaves if appointment created, appointment doesn't appear in outlook. here include file on top of aspx.cs page using outlook = microsoft.office.interop.outlook; here code using pop appointment. outlook.application apptapp = new outlook.application(); outlook.appointmentitem appt = apptapp.createitem(outlook.olitemtype.olappointmentitem) outlook.appointmentitem; appt.subject = txtfirstname.text + " " + txtlastname.text; appt.body = txtcomment.text; appt.alldayevent = false; appt.start = datetime.parse(txtreminderdate.text + " 8:00 am"); appt.end = datetime.p...
Read more

ios - Swift Array Resetting Itself -

-
i have 2 arrays: pointhistory , datehistory . have nstimer , , when timer runs out, action called. in action appending int pointhistory , , current date string datehistory . here timer action: func timeraction() { let steppervalue = int(stepper.value) employee.numberofpoints = steppervalue networking.saveemployee(employee, completion: { (error) -> void in if error != nil { let alert = uialertcontroller(title: "error", message: "there error updating \(self.employee.name)'s points", preferredstyle: .alert) let alertaction = uialertaction(title: "ok", style: .cancel, handler: nil) alert.addaction(alertaction) self.presentviewcontroller(alert, animated: true, completion: nil) } }) var dateformatter = nsdateformatter() dateformatter.dateformat = "mm-dd-yyyy" dateformatter.timezone = nstimezone.localtimezone() var date = nsdate() var ...
Read more