(self, text: str)
Set the placeholder text.

        This text is displayed on the checkbox when the currentIndex() == -1

        Parameters
        ----------
        text : str
Set the placeholder text.
Set the placeholder text .
def setPlaceholderText(self, text: str):
        """
        Set the placeholder text.

        This text is displayed on the checkbox when the currentIndex() == -1

        Parameters
        ----------
        text : str
        """
        if self.__placeholderText != text:
            self.__placeholderText = text
            self.update()
def setPlaceholderText ( self , text : str ) : if self . __placeholderText != text : self . __placeholderText = text self . update ( )