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  4. Qcombobox everytime i choose a name it prints all the name i have on my database this is my code

Qcombobox everytime i choose a name it prints all the name i have on my database this is my code

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  • p3c0P p3c0

    @Gelo Use currentIndexChanged signal and donot use the loop.

    ? Offline
    ? Offline
    A Former User
    wrote on last edited by
    #4

    @p3c0 What loop? the while or for?

    p3c0P 1 Reply Last reply
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    • p3c0P Offline
      p3c0P Offline
      p3c0
      Moderators
      wrote on last edited by
      #5

      @Gelo Check this example:
      https://www.tutorialspoint.com/pyqt/pyqt_signals_and_slots.htm

      In the similar way you connect to the currentIndexChanged signal and get the selected index text in the connected slot.

      157

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      • ? A Former User

        @p3c0 What loop? the while or for?

        p3c0P Offline
        p3c0P Offline
        p3c0
        Moderators
        wrote on last edited by
        #6

        @Gelo said in Qcombobox everytime i choose a name it prints all the name i have on my database this is my code:

        @p3c0 What loop? the while or for?

        for

        157

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        • p3c0P p3c0

          @Gelo said in Qcombobox everytime i choose a name it prints all the name i have on my database this is my code:

          @p3c0 What loop? the while or for?

          for

          ? Offline
          ? Offline
          A Former User
          wrote on last edited by
          #7

          @p3c0 i am confused help me with the code please

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          • p3c0P Offline
            p3c0P Offline
            p3c0
            Moderators
            wrote on last edited by
            #8

            @Gelo Sure but first you must become familiar with Qt's Signals and slots mechanism.

            157

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            • p3c0P p3c0

              @Gelo Sure but first you must become familiar with Qt's Signals and slots mechanism.

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              A Former User
              wrote on last edited by
              #9

              @p3c0 thank you for the thread
              how to convert this into a string

              self.query = QSqlQuery("SELECT name FROM test_table")
              self.comboBox = QComboBox(self)
              self.comboBox.currentIndexChanged.connect(self.selectionchange)
              #
              while(self.query.next()):
              self.comboBox.addItem(self.query.value(0).toString())

                  #
                  self.show()
                  
              def selectionchange(self):
                      print self.comboBox # i want to convert this into a string?
              
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              • p3c0P p3c0

                @Gelo Sure but first you must become familiar with Qt's Signals and slots mechanism.

                ? Offline
                ? Offline
                A Former User
                wrote on last edited by
                #10

                @p3c0 Thank you again so much! i figured it out ! by just adding

                def selectionchange(self):
                print self.comboBox.currentText()

                it prints what i want!

                Thank you!

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                • p3c0P Offline
                  p3c0P Offline
                  p3c0
                  Moderators
                  wrote on last edited by
                  #11

                  @Gelo Great!

                  157

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                  • p3c0P p3c0

                    @Gelo Great!

                    ? Offline
                    ? Offline
                    A Former User
                    wrote on last edited by
                    #12

                    @p3c0 Thank you so much! i really appreciate your effort GodBless you !

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                    • p3c0P Offline
                      p3c0P Offline
                      p3c0
                      Moderators
                      wrote on last edited by
                      #13

                      @Gelo Thank You!. I need it :)

                      157

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