self.workCombo.setEditable(True)
        pFilterModel=QSortFilterProxyModel(self.workCombo)
        pFilterModel.setFilterCaseSensitivity( Qt.CaseInsensitive )
        pFilterModel.setSourceModel(self.workCombo.model())
        AutoComboCompleter=QCompleter(self.workCombo)
        AutoComboCompleter.setModel(pFilterModel)
        AutoComboCompleter.setCompletionMode(QCompleter.PopupCompletion)
        self.workCombo.setCompleter( AutoComboCompleter )
        self.workCombo.lineEdit().textEdited[unicode].connect(self.filtro)
sql = "select * from T1 where rownum<201"

           self.workCombo.addItem(label,-1 )

        qry = QSqlQuery(myDB())
        if qry.exec_(sql):

           while qry.next():
             k, v = qry.value(1), qry.value(2)
             self.workCombo.addItem(v, k)

def filtro(self,text):
        logMessage("text {} ".format(text))
        model = QSqlTableModel(self,self.plugin.gridDb())
        model.setTable("table(F_GETLISTOPTIONFORMI('P_CS_WORK',NULL))")
        stringa = "\"p_description\" like \'%"+text+"%'"
        #QtCore.QString("\"p_description\" like \"%%1%\"").arg(text)
        logMessage(" filtro {} ".format(stringa))
        model.setFilter(stringa)
        model.select()
        AutoComboCompleter=QCompleter(self.workCombo)
        AutoComboCompleter.setModel(model)
        AutoComboCompleter.setCompletionMode(QCompleter.PopupCompletion)
        self.workCombo.setCompleter( AutoComboCompleter )