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  4. How to add a widget to QMainwindow in qt creator

How to add a widget to QMainwindow in qt creator

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  • V veera

    Hi ,
    No ....need to call in the run time There is Qmainwindow ui in that i have implemented there is a open pushbutton using style sheet ,if i press its has to open qtabwidget after words .....i will show my tableview in that ,its already connected with database server ..........this is my implementation idea....

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #22

    @veera

    ok if you new a tabwidget with no parent, it should become window
    then you just a page to it and it should be it

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    • V Offline
      V Offline
      veera
      wrote on last edited by
      #23

      how to add and open the page after click the button?

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      • V Offline
        V Offline
        veera
        wrote on last edited by
        #24

        if you don't mind please elaborate the concepts.....

        mrjjM 1 Reply Last reply
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        • V veera

          if you don't mind please elaborate the concepts.....

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by mrjj
          #25

          @veera

          I think i dont understand what you are asking.

          void MainWindow::on_pushButton_2_released()
          {
            QTabWidget* tw = new QTabWidget(nullptr);
            tw->addTab(new QPushButton("test"),"MYTAB");
            tw->show();
          }
          

          Will show a tabwidget as window with one Qpushbutton as tab

          alt text

          Note. just sample. it will make new each time pushed and not delete it.
          A dialog would work better.

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          • V Offline
            V Offline
            veera
            wrote on last edited by
            #26

            sorry the main thing is that it has to open as a tab attached to main window ......

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            • V Offline
              V Offline
              veera
              wrote on last edited by
              #27

              /QTabWidget *tabWidget = new QTabWidget;

              /*QWidget *tab1 = new QWidget;
              QWidget *tab2 = new QWidget;
              QWidget *tab3 = new QWidget;
              setCentralWidget(tabWidget);
              tabWidget->insertTab(0,tab1,"Table_1 Data");
              tabWidget->insertTab(1,tab2,"Table2 data");
              tabWidget->insertTab(2,tab2,"Table3 data");
              

              // tabWidget->tabRemoved(0);
              // ui->tabWidget->removeTab(0);
              tabWidget->removeTab(2);
              Here i manually creating the widgets there are attaching with QMainwindow ....I dont want to create manually need to dynamically open it need to attached to Qmainwindow.......

              mrjjM 1 Reply Last reply
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              • V veera

                /QTabWidget *tabWidget = new QTabWidget;

                /*QWidget *tab1 = new QWidget;
                QWidget *tab2 = new QWidget;
                QWidget *tab3 = new QWidget;
                setCentralWidget(tabWidget);
                tabWidget->insertTab(0,tab1,"Table_1 Data");
                tabWidget->insertTab(1,tab2,"Table2 data");
                tabWidget->insertTab(2,tab2,"Table3 data");
                

                // tabWidget->tabRemoved(0);
                // ui->tabWidget->removeTab(0);
                tabWidget->removeTab(2);
                Here i manually creating the widgets there are attaching with QMainwindow ....I dont want to create manually need to dynamically open it need to attached to Qmainwindow.......

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #28

                @veera said in How to add a widget to QMainwindow in qt creator:

                I dont want to create manually need to dynamically open it

                But using addTab or insertTab IS dynamically ???????
                as versus just adding them in Designer.

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                • V Offline
                  V Offline
                  veera
                  wrote on last edited by
                  #29

                  okay fine how about the display of the tabs need join to main window how we can achieve it ?

                  mrjjM 1 Reply Last reply
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                  • V veera

                    okay fine how about the display of the tabs need join to main window how we can achieve it ?

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #30

                    @veera

                    • display of the tabs need join to main window

                    the tabs are widgets. you can add any the widgets to main window if you use a layout or another tabwidget.

                    if you need them as tab still, then another tabwidget is needed.

                    else im not sure what you mean by "join"

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                    • V Offline
                      V Offline
                      veera
                      wrote on last edited by
                      #31

                      okay thanks for the support i will try now ...

                      mrjjM 1 Reply Last reply
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                      • V veera

                        okay thanks for the support i will try now ...

                        mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #32

                        @veera

                        Hopefully it answered what you asked.
                        I not sure what your real issue was, what you have tried and what didnt work :)

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                        • V Offline
                          V Offline
                          veera
                          wrote on last edited by
                          #33

                          Hi In the screen below image I have mentioned like this type in one mainwindow button need to implement i could not understand how to start ........please help me0_1507620122291_myui.png

                          jsulmJ 1 Reply Last reply
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                          • V veera

                            Hi In the screen below image I have mentioned like this type in one mainwindow button need to implement i could not understand how to start ........please help me0_1507620122291_myui.png

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #34

                            @veera Sorry, it is really hard to understand you. Isn't this just a QTabWidget containing another QTabWidgets in its tabs?

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

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                            • V Offline
                              V Offline
                              veera
                              wrote on last edited by
                              #35

                              No it should have some control if you click it it has to open it as a tab need to open as you can see in the image i have uploaded?

                              jsulmJ 1 Reply Last reply
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                              • V veera

                                No it should have some control if you click it it has to open it as a tab need to open as you can see in the image i have uploaded?

                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #36

                                @veera You can either use real buttons or qtabwidget containing other qtabwidget and react on tab switch using
                                http://doc.qt.io/qt-5/qtabwidget.html#currentChanged
                                But I don't really understand what you're asking for...

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

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                                • V Offline
                                  V Offline
                                  veera
                                  wrote on last edited by
                                  #37

                                  I have shown in the image .....i dont need full implementation i just need a sample of the image with only one control needed thats it.

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                                  • V Offline
                                    V Offline
                                    veera
                                    wrote on last edited by
                                    #38

                                    single menus control with whenever if you click means it has to open a page or tab with (close X) on it ......thats it.

                                    jsulmJ 1 Reply Last reply
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                                    • V veera

                                      single menus control with whenever if you click means it has to open a page or tab with (close X) on it ......thats it.

                                      jsulmJ Offline
                                      jsulmJ Offline
                                      jsulm
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #39

                                      @veera What is exactly the problem? You can just connect a slot to clicked() signal of a push button (if you use a push button) and show what ever you need in that slot.

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

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                                      • V Offline
                                        V Offline
                                        veera
                                        wrote on last edited by
                                        #40

                                        please find my screen shots these dialog boxes are opening separately ...i don't want to open it separately need to join them to main window as well as it will not allow to do anything after closing window only we can open another window.....0_1507638234622_mygui12.png 0_1507638243458_mygui45.png 0_1507638250188_mygui7.png

                                        jsulmJ 1 Reply Last reply
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                                        • V veera

                                          please find my screen shots these dialog boxes are opening separately ...i don't want to open it separately need to join them to main window as well as it will not allow to do anything after closing window only we can open another window.....0_1507638234622_mygui12.png 0_1507638243458_mygui45.png 0_1507638250188_mygui7.png

                                          jsulmJ Offline
                                          jsulmJ Offline
                                          jsulm
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #41

                                          @veera If you don't want to open them as windows than don't do it. It looks like you're using dialogs - dialogs are per definition windows! Add those widgets to their parent widget.

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

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