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Get content of cell from QTableView

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  • SGaistS SGaist

    Short version:
    ui->tableView->model()->index(index.row(),0).data().toInt();

    T Offline
    T Offline
    t0msk
    wrote on last edited by
    #7

    @SGaist said in Get content of cell from QTableView:

    Short version:
    ui->tableView->model()->index(index.row(),0).data().toInt();

    Thanks :)

    Student who loves C/C++

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    • KaplanK Offline
      KaplanK Offline
      Kaplan
      wrote on last edited by
      #8

      Thank you very much. I've searched hours to find this. 😅

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      • I Offline
        I Offline
        imene
        wrote on last edited by
        #9

        @SGaist said in Get content of cell from QTableView:

        ui->tableView->model()->index(index.row(),0).data().toInt();

        It doesn't work for me it returns "member reference base char'(const char,int) throw()' is not a structure or union":
        e59279c3-7ca8-4fff-b9a6-06658e43721f-image.png

        JonBJ 1 Reply Last reply
        0
        • I imene

          @SGaist said in Get content of cell from QTableView:

          ui->tableView->model()->index(index.row(),0).data().toInt();

          It doesn't work for me it returns "member reference base char'(const char,int) throw()' is not a structure or union":
          e59279c3-7ca8-4fff-b9a6-06658e43721f-image.png

          JonBJ Offline
          JonBJ Offline
          JonB
          wrote on last edited by JonB
          #10

          @imene
          You are in the middle of MainWindow constructor. On the line you show, in the index.row() expression what is the index variable, where is it declared, what is its type?

          The point of this question is to get the content of a QTableView cell, where the cell you want is in the model at QModelIndex index.

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          • Karoluss96K Offline
            Karoluss96K Offline
            Karoluss96
            wrote on last edited by
            #11

            Hi, I've tried the same (almost, because in python), but I gain error: name 'index' is not defined

            jsulmJ 1 Reply Last reply
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            • Karoluss96K Karoluss96

              Hi, I've tried the same (almost, because in python), but I gain error: name 'index' is not defined

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

              @Karoluss96 Please post the code.
              Did you define the "index" member variable?

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

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              • Karoluss96K Offline
                Karoluss96K Offline
                Karoluss96
                wrote on last edited by
                #13

                No, but It is noe build-in function? like here: https://stackoverflow.com/questions/37035756/how-to-select-multiple-rows-in-qtableview-using-selectionmodel

                jsulmJ 1 Reply Last reply
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                • Karoluss96K Karoluss96

                  No, but It is noe build-in function? like here: https://stackoverflow.com/questions/37035756/how-to-select-multiple-rows-in-qtableview-using-selectionmodel

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #14

                  @Karoluss96 If you read this thread, especially what @JonB asked you will see that it is unclear what index is in the code posted. Sinse it is not my code I also don't know.

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

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                  • Karoluss96K Offline
                    Karoluss96K Offline
                    Karoluss96
                    wrote on last edited by
                    #15

                    I put tableView.currentIndex() here, that take the number of index for data, which work correct, but later .data() says: ' 'int' object has no attribute 'data''

                    jsulmJ JonBJ 2 Replies Last reply
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                    • Karoluss96K Karoluss96

                      I put tableView.currentIndex() here, that take the number of index for data, which work correct, but later .data() says: ' 'int' object has no attribute 'data''

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #16

                      @Karoluss96 Can you please post the code?

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

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                      • Karoluss96K Karoluss96

                        I put tableView.currentIndex() here, that take the number of index for data, which work correct, but later .data() says: ' 'int' object has no attribute 'data''

                        JonBJ Offline
                        JonBJ Offline
                        JonB
                        wrote on last edited by
                        #17

                        @Karoluss96 said in Get content of cell from QTableView:

                        but later .data() says: ' 'int' object has no attribute 'data''

                        Do you expect people to say anything useful about this when you show no code?

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                        • Karoluss96K Offline
                          Karoluss96K Offline
                          Karoluss96
                          wrote on last edited by
                          #18

                          My plan is to get data from whole table and separate it between rows to make sql question (Insert Into those who are new added)
                          now (after cutting of .toInt() ) looks that:

                          data= self.dlg.tableView_3.model().index(self.dlg.tableView_3.currentIndex().row(),0)
                                  dt=data.data()
                                  print (dt)
                          
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                          • Karoluss96K Offline
                            Karoluss96K Offline
                            Karoluss96
                            wrote on last edited by
                            #19

                            It take only the first record from selected row, wheras I need all data from selected row, which later I want to put (separatly one-by-one) to a sql question

                            JonBJ 1 Reply Last reply
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                            • Karoluss96K Karoluss96

                              It take only the first record from selected row, wheras I need all data from selected row, which later I want to put (separatly one-by-one) to a sql question

                              JonBJ Offline
                              JonBJ Offline
                              JonB
                              wrote on last edited by
                              #20

                              @Karoluss96 said in Get content of cell from QTableView:

                              It take only the first record from selected row

                              Careful with words, you mean column not record. So look at your 0 argument which only fetches the data for column 0, and write code to pick up all the columns in the row if that is what you want....

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                              • Karoluss96K Offline
                                Karoluss96K Offline
                                Karoluss96
                                wrote on last edited by
                                #21

                                Maybe some loop will be good?

                                JonBJ 1 Reply Last reply
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                                • Karoluss96K Karoluss96

                                  Maybe some loop will be good?

                                  JonBJ Offline
                                  JonBJ Offline
                                  JonB
                                  wrote on last edited by
                                  #22

                                  @Karoluss96 I would think that would indeed be a good idea if you want to get the content of each column :)

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                                  • Karoluss96K Offline
                                    Karoluss96K Offline
                                    Karoluss96
                                    wrote on last edited by
                                    #23

                                    Now I have:

                                    data= self.dlg.tableView_3.model().index(self.dlg.tableView_3.selectionModel().currentIndex().row(),0)
                                    dane=data.data()
                                           for i in data:
                                               data=self.model4.selectIndex(i)
                                               print (data)
                                    

                                    but it get error: 'QModelIndex' object is not iterable

                                    JonBJ 1 Reply Last reply
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                                    • Karoluss96K Karoluss96

                                      Now I have:

                                      data= self.dlg.tableView_3.model().index(self.dlg.tableView_3.selectionModel().currentIndex().row(),0)
                                      dane=data.data()
                                             for i in data:
                                                 data=self.model4.selectIndex(i)
                                                 print (data)
                                      

                                      but it get error: 'QModelIndex' object is not iterable

                                      JonBJ Offline
                                      JonBJ Offline
                                      JonB
                                      wrote on last edited by JonB
                                      #24

                                      @Karoluss96
                                      This is wrong. Your data variable is a single data index item, you can't go for i in data. Please look at the documentation for correct usage of QVariant QAbstractItemModel::data(const QModelIndex &index, int role = Qt::DisplayRole) const or QVariant QModelIndex::data(int role = Qt::DisplayRole) const

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                                      • Karoluss96K Offline
                                        Karoluss96K Offline
                                        Karoluss96
                                        wrote on last edited by
                                        #25

                                        hmm, so maybe the the whole row at begin in loop?

                                        JonBJ 1 Reply Last reply
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                                        • Karoluss96K Karoluss96

                                          hmm, so maybe the the whole row at begin in loop?

                                          JonBJ Offline
                                          JonBJ Offline
                                          JonB
                                          wrote on last edited by JonB
                                          #26

                                          @Karoluss96
                                          I really should not have to tell you this! If you want to allow for picking all the columns in a row even if just one cell is selected (so you can't only look at selected cells) you will want something like:

                                          row = self.dlg.tableView_3.selectionModel().currentIndex().row()
                                          model = self.dlg.tableView_3.model()
                                          for col in range(model.columnCount()):
                                              print(model.index(row, col).data())
                                          # Or I think you can do this in Python:
                                          rowData = [ model.index(row, col).data() for col in range(model.columnCount()) ]
                                          print(rowData)
                                          
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