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  4. Stuck in this Error :::invalid use of incomplete type ‘class Ui::Dialog’ ui(new Ui::Dialog) ^~~~~~
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Stuck in this Error :::invalid use of incomplete type ‘class Ui::Dialog’ ui(new Ui::Dialog) ^~~~~~

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  • sankarapandiyanS sankarapandiyan

    dialog.cpp

    #include "dialog.h"
    #include "ui_dialog.h"
    #include <QProgressDialog>
    #include <QDebug>
    Dialog::Dialog(QWidget *parent) :
        QDialog(parent),
        ui(new Ui::Dialog)
    {
        ui->setupUi(this);
    }
    Dialog::~Dialog()
    {
        delete ui;
    }
    void Dialog::on_modalButton_clicked()
    {
        int numTasks = 100000;
        QProgressDialog progress("Task in progress...", "Cancel", 0, numTasks, this);
        progress.setWindowModality(Qt::WindowModal);
        for (int i = 0; i < numTasks; i++) {
            progress.setValue(i);
           if (progress.wasCanceled())
                break;
        }
        progress.setValue(numTasks);
    }
    void Dialog::on_modelessButton_clicked()
    {
        myTask = new MyTask;
    }
    
    J.HilkJ Offline
    J.HilkJ Offline
    J.Hilk
    Moderators
    wrote on last edited by
    #4

    @sankarapandiyan nobody will be able to find the error here, show us your header file

    also pls use the code tag to display code:
    428d970c-1ba8-4f15-a496-2180a72170fe-image.png


    Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


    Q: What's that?
    A: It's blue light.
    Q: What does it do?
    A: It turns blue.

    sankarapandiyanS 2 Replies Last reply
    1
    • Christian EhrlicherC Christian Ehrlicher

      So how did you name you widget in the designer? Looking into ui_dialog.h will show you that it's at least not 'Dialog'

      sankarapandiyanS Offline
      sankarapandiyanS Offline
      sankarapandiyan
      wrote on last edited by
      #5

      @Christian-Ehrlicher in designer i have used only Dialog , then why its shows the error , please give some suggestion to fix this error

      1 Reply Last reply
      0
      • J.HilkJ J.Hilk

        @sankarapandiyan nobody will be able to find the error here, show us your header file

        also pls use the code tag to display code:
        428d970c-1ba8-4f15-a496-2180a72170fe-image.png

        sankarapandiyanS Offline
        sankarapandiyanS Offline
        sankarapandiyan
        wrote on last edited by
        #6

        @J-Hilk YEs i have done it .please give me some suggestion about the error

        jsulmJ 1 Reply Last reply
        0
        • sankarapandiyanS sankarapandiyan

          @J-Hilk YEs i have done it .please give me some suggestion about the error

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #7

          @sankarapandiyan He asked you to post the code...

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

          sankarapandiyanS 1 Reply Last reply
          0
          • jsulmJ jsulm

            @sankarapandiyan He asked you to post the code...

            sankarapandiyanS Offline
            sankarapandiyanS Offline
            sankarapandiyan
            wrote on last edited by
            #8

            @jsulm sure check it

            1 Reply Last reply
            0
            • J.HilkJ J.Hilk

              @sankarapandiyan nobody will be able to find the error here, show us your header file

              also pls use the code tag to display code:
              428d970c-1ba8-4f15-a496-2180a72170fe-image.png

              sankarapandiyanS Offline
              sankarapandiyanS Offline
              sankarapandiyan
              wrote on last edited by
              #9

              @J-Hilk I have done it

              jsulmJ 1 Reply Last reply
              0
              • sankarapandiyanS sankarapandiyan

                @J-Hilk I have done it

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #10

                @sankarapandiyan said in Stuck in this Error :::invalid use of incomplete type ‘class Ui::Dialog’ ui(new Ui::Dialog) ^~~~~~:

                I have done it

                Where? I can't see the code from your header files anywhere...

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

                sankarapandiyanS 1 Reply Last reply
                0
                • jsulmJ jsulm

                  @sankarapandiyan said in Stuck in this Error :::invalid use of incomplete type ‘class Ui::Dialog’ ui(new Ui::Dialog) ^~~~~~:

                  I have done it

                  Where? I can't see the code from your header files anywhere...

                  sankarapandiyanS Offline
                  sankarapandiyanS Offline
                  sankarapandiyan
                  wrote on last edited by
                  #11

                  @jsulm i have done

                  jsulmJ J.HilkJ 2 Replies Last reply
                  0
                  • sankarapandiyanS sankarapandiyan

                    @jsulm i have done

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #12

                    @sankarapandiyan Sorry, but I can't see it anywhere...

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

                    1 Reply Last reply
                    0
                    • sankarapandiyanS sankarapandiyan

                      @jsulm i have done

                      J.HilkJ Offline
                      J.HilkJ Offline
                      J.Hilk
                      Moderators
                      wrote on last edited by
                      #13

                      @sankarapandiyan neither can I


                      Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                      Q: What's that?
                      A: It's blue light.
                      Q: What does it do?
                      A: It turns blue.

                      1 Reply Last reply
                      1
                      • mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #14

                        Hi
                        Please also show

                        dialog.h

                        and most important

                        ui_dialog.h

                        sankarapandiyanS 1 Reply Last reply
                        0
                        • mrjjM mrjj

                          Hi
                          Please also show

                          dialog.h

                          and most important

                          ui_dialog.h

                          sankarapandiyanS Offline
                          sankarapandiyanS Offline
                          sankarapandiyan
                          wrote on last edited by sankarapandiyan
                          #15

                          @mrjj

                          ``

                          i have included #include <ui_dialog.h> in dialog.h 
                          
                          
                          
                          #ifndef DIALOG_H
                          #define DIALOG_H
                          
                          
                          #include <QDialog>
                          #include "mytask.h"
                          #include <ui_dialog.h>
                          namespace Ui {
                          class Dialog;
                          }
                           but the error remains the same   /home/adx-soft1/Desktop/Sankarapandiyan/ProgDial/dialog.cpp:10: error: invalid use of incomplete type ‘class Ui::Dialog’
                               ui(new Ui::Dialog)
                                          ^~~~~~
                          
                          
                          
                          this is my dialog.h 
                          
                          
                          #ifndef DIALOG_H
                          #define DIALOG_H
                          
                          
                          #include <QDialog>
                          #include "mytask.h"
                          #include <ui_dialog.h>
                          
                          
                          
                          namespace Ui {
                          class Dialog;
                          }
                          
                          class Dialog : public QDialog
                          {
                              Q_OBJECT
                          
                          public:
                              explicit Dialog(QWidget *parent = 0);
                              ~Dialog();
                          
                          private slots:
                              void on_modalButton_clicked();
                          
                              void on_modelessButton_clicked();
                          
                          private:
                              Ui::Dialog *ui;
                              MyTask *myTask;
                          };
                          
                          #endif // DIALOG_H
                          
                          
                          jsulmJ 1 Reply Last reply
                          0
                          • sankarapandiyanS sankarapandiyan

                            @mrjj

                            ``

                            i have included #include <ui_dialog.h> in dialog.h 
                            
                            
                            
                            #ifndef DIALOG_H
                            #define DIALOG_H
                            
                            
                            #include <QDialog>
                            #include "mytask.h"
                            #include <ui_dialog.h>
                            namespace Ui {
                            class Dialog;
                            }
                             but the error remains the same   /home/adx-soft1/Desktop/Sankarapandiyan/ProgDial/dialog.cpp:10: error: invalid use of incomplete type ‘class Ui::Dialog’
                                 ui(new Ui::Dialog)
                                            ^~~~~~
                            
                            
                            
                            this is my dialog.h 
                            
                            
                            #ifndef DIALOG_H
                            #define DIALOG_H
                            
                            
                            #include <QDialog>
                            #include "mytask.h"
                            #include <ui_dialog.h>
                            
                            
                            
                            namespace Ui {
                            class Dialog;
                            }
                            
                            class Dialog : public QDialog
                            {
                                Q_OBJECT
                            
                            public:
                                explicit Dialog(QWidget *parent = 0);
                                ~Dialog();
                            
                            private slots:
                                void on_modalButton_clicked();
                            
                                void on_modelessButton_clicked();
                            
                            private:
                                Ui::Dialog *ui;
                                MyTask *myTask;
                            };
                            
                            #endif // DIALOG_H
                            
                            
                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #16

                            @sankarapandiyan Can you please simply provide the content of ui_dialog.h? This is what we are asking all the time.

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

                            sankarapandiyanS 1 Reply Last reply
                            1
                            • jsulmJ jsulm

                              @sankarapandiyan Can you please simply provide the content of ui_dialog.h? This is what we are asking all the time.

                              sankarapandiyanS Offline
                              sankarapandiyanS Offline
                              sankarapandiyan
                              wrote on last edited by
                              #17

                              @jsulm [url=https://postimg.cc/tZyZdZ4R][img]https://i.postimg.cc/tZyZdZ4R/Screenshot-from-2019-10-31-13-33-16.png[/img][/url]

                              [url=https://postimg.cc/rd5RtCcY][img]https://i.postimg.cc/rd5RtCcY/Screenshot-from-2019-10-31-13-33-28.png[/img][/url]

                              jsulmJ 1 Reply Last reply
                              0
                              • sankarapandiyanS sankarapandiyan

                                @jsulm [url=https://postimg.cc/tZyZdZ4R][img]https://i.postimg.cc/tZyZdZ4R/Screenshot-from-2019-10-31-13-33-16.png[/img][/url]

                                [url=https://postimg.cc/rd5RtCcY][img]https://i.postimg.cc/rd5RtCcY/Screenshot-from-2019-10-31-13-33-28.png[/img][/url]

                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #18

                                @sankarapandiyan This is not what we asked you to provide!
                                AGAIN: post the content of ui_dialog.h ! It is a normal C++ header file, so symply copy its text and post it here directly...

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

                                sankarapandiyanS 1 Reply Last reply
                                1
                                • jsulmJ jsulm

                                  @sankarapandiyan This is not what we asked you to provide!
                                  AGAIN: post the content of ui_dialog.h ! It is a normal C++ header file, so symply copy its text and post it here directly...

                                  sankarapandiyanS Offline
                                  sankarapandiyanS Offline
                                  sankarapandiyan
                                  wrote on last edited by
                                  #19

                                  @jsulm ```
                                  code_text

                                  #define DIALOG_H
                                  
                                  #include <QDialog>
                                  #include<QTimer>
                                  #include<QProgressDialog>
                                  
                                  namespace Ui {
                                  class Dialog;
                                  }
                                  
                                  class Dialog : public QDialog
                                  {
                                      Q_OBJECT
                                  
                                  public:
                                      explicit Dialog(QWidget *parent = nullptr);
                                      ~Dialog();
                                  public slots:
                                      void myfunction();
                                      void perform();
                                      void cancel();
                                  
                                  private:
                                      Ui::Dialog *ui;
                                      int steps;
                                      QProgressDialog*pd;
                                      QTimer*timer;
                                  };
                                  
                                  #endif // DIALOG_H
                                  This is the hedder file of dialog.h
                                  jsulmJ 1 Reply Last reply
                                  0
                                  • sankarapandiyanS sankarapandiyan

                                    @jsulm ```
                                    code_text

                                    #define DIALOG_H
                                    
                                    #include <QDialog>
                                    #include<QTimer>
                                    #include<QProgressDialog>
                                    
                                    namespace Ui {
                                    class Dialog;
                                    }
                                    
                                    class Dialog : public QDialog
                                    {
                                        Q_OBJECT
                                    
                                    public:
                                        explicit Dialog(QWidget *parent = nullptr);
                                        ~Dialog();
                                    public slots:
                                        void myfunction();
                                        void perform();
                                        void cancel();
                                    
                                    private:
                                        Ui::Dialog *ui;
                                        int steps;
                                        QProgressDialog*pd;
                                        QTimer*timer;
                                    };
                                    
                                    #endif // DIALOG_H
                                    This is the hedder file of dialog.h
                                    jsulmJ Offline
                                    jsulmJ Offline
                                    jsulm
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #20

                                    @sankarapandiyan Sorry I will stop here as I'm tired to explain that you simply need to copy text from ui_dialog.h and paste it here...

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

                                    sankarapandiyanS 1 Reply Last reply
                                    0
                                    • jsulmJ jsulm

                                      @sankarapandiyan Sorry I will stop here as I'm tired to explain that you simply need to copy text from ui_dialog.h and paste it here...

                                      sankarapandiyanS Offline
                                      sankarapandiyanS Offline
                                      sankarapandiyan
                                      wrote on last edited by
                                      #21

                                      @jsulm i didnt have a content of ui dialog . h , And i am having dialog.h file only is there thats why i have uploaded repeatedly

                                      J.HilkJ 1 Reply Last reply
                                      0
                                      • sankarapandiyanS sankarapandiyan

                                        @jsulm i didnt have a content of ui dialog . h , And i am having dialog.h file only is there thats why i have uploaded repeatedly

                                        J.HilkJ Offline
                                        J.HilkJ Offline
                                        J.Hilk
                                        Moderators
                                        wrote on last edited by
                                        #22

                                        @sankarapandiyan
                                        it will not be inside QtCreator as it is a automatically created file.

                                        But you will find in in your build directory, if you use a normal file explorer, the one that comes with your operating system


                                        Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                                        Q: What's that?
                                        A: It's blue light.
                                        Q: What does it do?
                                        A: It turns blue.

                                        sankarapandiyanS 1 Reply Last reply
                                        3
                                        • J.HilkJ J.Hilk

                                          @sankarapandiyan
                                          it will not be inside QtCreator as it is a automatically created file.

                                          But you will find in in your build directory, if you use a normal file explorer, the one that comes with your operating system

                                          sankarapandiyanS Offline
                                          sankarapandiyanS Offline
                                          sankarapandiyan
                                          wrote on last edited by
                                          #23
                                          This post is deleted!
                                          mrjjM 1 Reply Last reply
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