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Name an unknown number of widgets with a name followed by an integer

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  • A Offline
    A Offline
    arsinte_andrei
    wrote on last edited by
    #2

    sorry for my ignorance but after I had a look into your git I couldn't find the code that you speaking about... can you post it here, please. and let us know when you get the error on the creation or when you use it??

    1 Reply Last reply
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    • N Offline
      N Offline
      N1coc4colA
      wrote on last edited by
      #3

      Look at the file "mainwindow.cpp", "mainwindow.h" and "mailbutton.*" At the root of the git. I can't past the code now, I havent my pc.
      https://github.com/N1coc4colA/Mails/blob/master/mainwindow.cpp
      Look at the end of the file, in the function "ChilkatSample()"

      mrjjM 1 Reply Last reply
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      • N N1coc4colA

        Look at the file "mainwindow.cpp", "mainwindow.h" and "mailbutton.*" At the root of the git. I can't past the code now, I havent my pc.
        https://github.com/N1coc4colA/Mails/blob/master/mainwindow.cpp
        Look at the end of the file, in the function "ChilkatSample()"

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #4

        @N1coc4colA

        Hi
        Do you mean the

         int numEmails = bundle->get_MessageCount();
        while (i < numEmails) {
        

        loop `?

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        0
        • A Offline
          A Offline
          arsinte_andrei
          wrote on last edited by
          #5
          qDebug() << "Opening Mailbox (inbox) was successfull";
          

          is not doing anything - is after return

          mail->setObjectName(magik);
          
          1. this has to be exactly after the creation of the object - is the NAME of the object you created -
          2. you create to many objects with the very same name - names have to be unique
          3. use something like
          mail->setObjectName(magik.append(QString::number(i)));
          

          hope that helped

          1 Reply Last reply
          4
          • N Offline
            N Offline
            N1coc4colA
            wrote on last edited by
            #6

            Yes, but after, to access it with a pointer, I have to use what? magik.append(QString::number(i)))->.... ?

            mrjjM 1 Reply Last reply
            0
            • N N1coc4colA

              Yes, but after, to access it with a pointer, I have to use what? magik.append(QString::number(i)))->.... ?

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #7

              @N1coc4colA
              Hi
              That only sets the object name.
              If you need pointers to the widgets, you should keep a list around
              or build one on demand with
              FindChildren.

              1 Reply Last reply
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              • N Offline
                N Offline
                N1coc4colA
                wrote on last edited by
                #8

                OK, thank you. I think I'll use the second one, Do a list is hard, prefer the second, due to the unknown number of widgets and the fact that I need to use connect(), it'll be better for me.Thanks for your help, Master of Qt, who's on every chats, I'll maybe ask you for help in the future. ;)

                Pl45m4P 1 Reply Last reply
                0
                • N N1coc4colA

                  OK, thank you. I think I'll use the second one, Do a list is hard, prefer the second, due to the unknown number of widgets and the fact that I need to use connect(), it'll be better for me.Thanks for your help, Master of Qt, who's on every chats, I'll maybe ask you for help in the future. ;)

                  Pl45m4P Offline
                  Pl45m4P Offline
                  Pl45m4
                  wrote on last edited by
                  #9

                  @N1coc4colA said in Name an unknown number of widgets with a name followed by an integer:

                  Do a list is hard

                  It's not that hard... but you have to ensure, that everything is cleaned up correctly.
                  Maybe a vector / list of QSharedPointers.


                  If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                  ~E. W. Dijkstra

                  1 Reply Last reply
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                  • N Offline
                    N Offline
                    N1coc4colA
                    wrote on last edited by
                    #10

                    connect(this->findChildren<MailButton *>("mail" + QString::number(i)), SIGNAL(Processed(QString)), this, SLOT(MessageFallBack(QString)));
                    I can use it, so?

                    jsulmJ 1 Reply Last reply
                    0
                    • N N1coc4colA

                      connect(this->findChildren<MailButton *>("mail" + QString::number(i)), SIGNAL(Processed(QString)), this, SLOT(MessageFallBack(QString)));
                      I can use it, so?

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #11

                      @N1coc4colA said in Name an unknown number of widgets with a name followed by an integer:

                      I can use it, so?

                      No, this can't work.
                      You have to call connect for every button. You can do this in a loop.

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

                      N 1 Reply Last reply
                      3
                      • jsulmJ jsulm

                        @N1coc4colA said in Name an unknown number of widgets with a name followed by an integer:

                        I can use it, so?

                        No, this can't work.
                        You have to call connect for every button. You can do this in a loop.

                        N Offline
                        N Offline
                        N1coc4colA
                        wrote on last edited by
                        #12

                        @jsulm, I have my loop, all the code is already in a loop. I have a loop of the number of mails, it create the MailButton I talked about. I had to change the name in depending of the no. and to use some pointers and some connect(), now it's fix. You said that I have to put it the loop, so it's right. But, as I said it should work, right?

                        Pl45m4P 1 Reply Last reply
                        0
                        • N N1coc4colA

                          @jsulm, I have my loop, all the code is already in a loop. I have a loop of the number of mails, it create the MailButton I talked about. I had to change the name in depending of the no. and to use some pointers and some connect(), now it's fix. You said that I have to put it the loop, so it's right. But, as I said it should work, right?

                          Pl45m4P Offline
                          Pl45m4P Offline
                          Pl45m4
                          wrote on last edited by Pl45m4
                          #13

                          @N1coc4colA

                          You can not loop over this. You have to use an object with an index.

                          For example:

                          QVector <MyButtons*> m_buttons;
                          
                          for (int i = 0; i < 10; i++)
                          {
                              m_buttons.pushback(new MyButton ());
                              connect (m_buttons.at(i), &MyButton::clicked, dest, &MyDestination::DoSomething);
                          }
                          

                          If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                          ~E. W. Dijkstra

                          N 1 Reply Last reply
                          1
                          • Pl45m4P Pl45m4

                            @N1coc4colA

                            You can not loop over this. You have to use an object with an index.

                            For example:

                            QVector <MyButtons*> m_buttons;
                            
                            for (int i = 0; i < 10; i++)
                            {
                                m_buttons.pushback(new MyButton ());
                                connect (m_buttons.at(i), &MyButton::clicked, dest, &MyDestination::DoSomething);
                            }
                            
                            N Offline
                            N Offline
                            N1coc4colA
                            wrote on last edited by
                            #14

                            OK, thank you for the answer

                            1 Reply Last reply
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