Hello,

Can i simply select strings with setCurrentIndex(int...) from a QComboBox and ->show()? or do i have to add a QStandardItemModel item?

In a widget i have a QComboBox with 3 strings at position 0,1,2
when i want to select a string, the ComboBox remains at item in position 0 := "MOD"

I found out that somewhat triggers the signal currentIndexChanged() 2 or 3 times, depending of setCurrentIndex(1) or setCurrentIndex(2) ????

Thank you for any advice,
Astronomy


Qt Code: 
  1. //in the constructor..
  2.  
  3.      m_ui->comboBoxINTYP->addItem("MOD");
  4.      m_ui->comboBoxINTYP->addItem("PEL");
  5.      m_ui->comboBoxINTYP->addItem("RHO");
  6.  
  7. //     Another try without success..
  8. //    m_ui->comboBoxINTYP->insertItem(0,"MOD");
  9. //    m_ui->comboBoxINTYP->insertItem(1,"PEL");
  10. //    m_ui->comboBoxINTYP->insertItem(2,"RHO");
  11.  
  12. //     Another try without success..
  13. //    m_ui->comboBoxINTYP->insertItem(0,"MOD",QVariant("MOD"));
  14.  //   m_ui->comboBoxINTYP->insertItem(1,"PEL",QVariant("PEL"));
  15.  //   m_ui->comboBoxINTYP->insertItem(2,"RHO",QVariant("RHO"));
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...reading values out data from a file and call setCurrentIndex()...
Qt Code: 
  1. if(Ccoma08ctr.Get_INTYP() == "MOD")
  2.     {
  3.         m_ui->comboBoxINTYP->setCurrentIndex(0);
  4.         m_ui->comboBoxINTYP->show();
  5.     }
  6.     else if(Ccoma08ctr.Get_INTYP() == "PEL")
  7.     {
  8.         m_ui->comboBoxINTYP->setCurrentIndex(1);
  9.         m_ui->comboBoxINTYP->show();
  10.     }
  11.     else if(Ccoma08ctr.Get_INTYP() == "RHO")
  12.     {
  13.         cout << "index: RHO ist 2:" << endl;
  14.         m_ui->comboBoxINTYP->setCurrentIndex(2);
  15.         m_ui->comboBoxINTYP->show();
  16.     }
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looking at:
Qt Code: 
  1. void ComaControlFile::on_comboBoxINTYP_currentIndexChanged(int index)
  2. {
  3.     cout << "on_comboBoxINTYP_currentIndexChanged(int index): " << index << endl;
  4.  
  5. }
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setCurrentIndex(1) gives:
on_comboBoxINTYP_currentIndexChanged(int index): 0 //ok this is the constructor
index: PEL ist 1:
on_comboBoxINTYP_currentIndexChanged(int index): 1 //this is me.. ok
on_comboBoxINTYP_currentIndexChanged(int index): 0 //????
setCurrentIndex(2) gives:
on_comboBoxINTYP_currentIndexChanged(int index): 0 //ok this is the constructor
index: RHO ist 2:
on_comboBoxINTYP_currentIndexChanged(int index): 2 //this is me.. ok
on_comboBoxINTYP_currentIndexChanged(int index): 1 //???
on_comboBoxINTYP_currentIndexChanged(int index): 0 //???