QTreeWidget clicked signal

[mkkguru]

plz go through the below code and before posted code........

void xxx::showItem(QTreeWidgetItem* item)
 
      {
 
      if(item == lnx)
 
      {
 
      ECLogic_Lnx=new eclogic_lnx(main_tab_widget);
 
      ECLogic_Lnx->setWindowTitle(QString("ECLOGIC-LNX"));
 
      ECLogic_Lnx->show();
 
      }
 
      else
 
      if(item == plc)
 
      tab_3=new QTabBar(main_tab_widget);
 
      PLCconfig=new plcconfiguration(tab_3);
 
      PLCconfig->setWindowTitle(QString("PLC"));
 
      main_tab_widget->insertTab(0,tab_3,QString("PLC"));
 
      tab_3->setCurrentIndex(main_tab_widget->indexOf(tab_3));
 
      PLCconfig->show();
 
      }

void xxx::showItem(QTreeWidgetItem* item)
   
      {
   
      if(item == lnx)
   
      {
   
      ECLogic_Lnx=new eclogic_lnx(main_tab_widget);
   
      ECLogic_Lnx->setWindowTitle(QString("ECLOGIC-LNX"));
   
      ECLogic_Lnx->show();
   
      }
   
      else
  
      if(item == plc)
 
      tab_3=new QTabBar(main_tab_widget);
  
      PLCconfig=new plcconfiguration(tab_3);
  
      PLCconfig->setWindowTitle(QString("PLC"));
  
      main_tab_widget->insertTab(0,tab_3,QString("PLC"));
  
      tab_3->setCurrentIndex(main_tab_widget->indexOf(tab_3));
  
      PLCconfig->show();
  
      }

To copy to clipboard, switch view to plain text mode 

while iam using if(........) condition the other windows(plc,pvc,....)has to open when i click the treewidgetitems like PLC,ECLOGIC-LNX........but the condition is not working correctly