sql - Java Inserting into database adds new data and it replaces the first row -

-

this code button, inserts data has been changed in text boxes of gui, once pressed.

i have been getting issue adds new row of data when press insert, replaces first row in table, end having first , last row equal in aspects.

may please me? appreciated.

private void jtogglebutton1actionperformed(java.awt.event.actionevent evt) {                                                    tblstudents stud = new tblstudents();      int row = jtable1.getrowcount();     row++;      stud.setstudentid(row);      stud.setfirstname(jtextfield2.gettext());     stud.setsurname(jtextfield3.gettext());     string birthd = dated.gettext();         simpledateformat sdf1 = new simpledateformat ("yyy-mm-dd");      try     {         date date = null;         date = sdf1.parse(birthd);         stud.setbirthdate(date);     } catch (parseexception ex)     {}     stud.setgrade(jtextfield4.gettext());     stud.sethouseid (integer.parseint(jtextfield6.gettext()));      studenthousepuentitymanager.gettransaction().begin();      studenthousepuentitymanager.persist(stud);      studenthousepuentitymanager.gettransaction().commit();          tblstudentslist.clear();     tblstudentslist.addall(tblstudentsquery.getresultlist()); }


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