code: public int convertIndexToField(int index, boolean bDisplayOption, int iMoveMode)
      {
          String tempString = this.convertIndexToString(index);
          return this.setString(tempString, bDisplayOption, iMoveMode); // Move value to this field
      }
docs: Convert the display's index to the field value and move to field.
  @param index The index to convert an set this field to.
  @param bDisplayOption If true, display the change in the converters.
  @param iMoveMove The type of move.