QDateEdit return to previous state on button click in Qt C++ -

-

i have qdateedit in form in qt , want on button click qdateedit returns previous state. how can done?

at moment state of qdateedit (which specialized qdatetimeedit) can retrieved calling date() method.

then, said, need put value qdate variable of class , create slot connect button click , calls setdate set qdateedit date.

below code snippet shows 1 way this. 

#ifndef mydialog_h #define mydialog_h  #include <qdialog> #include <qhboxlayout> #include <qdateedit> #include <qpushbutton>  class dialog: public qdialog {   q_object      public:   dialog(qwidget *parent = 0) : qdialog(parent),     layout(this),     edit(),     button("reset",this)       {         layout.addwidget(&edit);         layout.addwidget(&button);         date = edit.date();         connect(&button, signal( clicked() ), this, slot( resettime() ) );       }    public slots:    void resettime()   {     edit.setdate(date);   }   private:    qhboxlayout layout;   qdateedit edit;   qpushbutton button;   qdate date;  };  #endif

main.cc completeness 

#include <qapplication>  #include "dialog.h"  int main(int argc, char** argv) {   qapplication app(argc, argv);   dialog dialog;    dialog.show();    return app.exec();  }

let me know if helps.


Comments

Post a Comment

Popular posts from this blog

java - Oracle EBS .ClassNotFoundException: oracle.apps.fnd.formsClient.FormsLauncher.class ERROR -

-
i need in configuring java on machine because, when try loading forms, loader goes in circles , gives error: java.lang.classnotfoundexception: oracle.apps.fnd.formsclient.formslauncher.class @ sun.plugin2.applet.applet2classloader.findclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass0(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadcode(unknown source) @ sun.plugin2.applet.plugin2manager.createapplet(unknown source) @ sun.plugin2.applet.plugin2manager$appletexecutionrunnable.run (unknown source) @ java.lang.thread.run(unknown source) i have tried re-installing firefox, older versions of java runtime environments, disabling proxy. what missing? application working on other machines. i spent around 100 hours finding s...
Read more

c# - how to use buttonedit in devexpress gridcontrol -

-
Image
i trying create gridcontrol buttonedit in 1 of columns. when user clicks button edit, popups form select product. when selection done on popup, returns datarow selection main grid below. but when column loses focus, value wrote column disappear. here code creates gridcontrol's data , buttonedit's click event. private void frmsiparisnew_load(object sender, eventargs e) { dt = new datatable(); dt.columns.add("malzeme_kodu",typeof(string)); dt.columns.add("malzeme_aciklama", typeof(string)); dt.columns.add("adet", typeof(decimal)); dt.columns.add("birim", typeof(string)); dt.columns.add("fiyat", typeof(decimal)); dt.columns.add("kur", typeof(string)); dt.columns.add("tutar", typeof(decimal)); datarow dr = dt.newrow(); dt.rows.add(dr); gc.datasource = dt; } private void repositoryitembuttoneditmal...
Read more

how to display 2 form fields on same line with bootstrap -

-
i creating form in bootstrap should responsive. see below code. <form novalidate="novalidate" class="form-inline"> <div class="form-group"> <label class="col-sm-4 control-label" for="inputfirstname">first name:</label> <div class="col-sm-4"> <input class="form-control" type="text" id="inputfirstname" ng-model="patient.firstname"/> </div> </div> <div class="form-group"> <label class="col-sm-4 control-label" for="inputlastname">last name:</label> <div class="col-sm-4"> <input class="form-control" type="text" id="inputlastname" ng-model="patient.lastname"/> </div> </div> ...
Read more