DROPDOWN widget select BUG

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    • DROPDOWN widget select BUG

      Hi,

      When I using DROPDOWN_SetItemDisabled disable some items of the DROPDOWN widget , UP and DOWM key still CAN select disabled items if it focused.
      When the DROPDOWN widget in expand mode, Disabled items cannot be selected.

      Regards,
      Chensie

    • Hi,

      Thanks for pointing this one out.

      We will fix this behavior. In the meanwhile you can use the workaround below. You have to set a custom callback for the DRAOPDOWN widget and react on WM_KEY. If the selection is disabled set a new selection.

      Set the callback below with WM_SetCallback(hDropdown, _cbDropdown);

      C Source Code

      1. /*********************************************************************
      2. *
      3. * _cbDropdown
      4. */
      5. static void _cbDropdown(WM_MESSAGE * pMsg) {
      6. WM_KEY_INFO * pInfo;
      7. static int OldSel;
      8. int NewSel;
      9. int NumIndexes;
      11. switch (pMsg->MsgId) {
      12. case WM_KEY:
      13. pInfo = (WM_KEY_INFO *)pMsg->Data.p;
      14. if (pInfo) {
      15. if (pInfo->PressedCnt) {
      16. OldSel = DROPDOWN_GetSel(pMsg->hWin);
      17. DROPDOWN_Callback(pMsg);
      18. NewSel = DROPDOWN_GetSel(pMsg->hWin);
      19. NumIndexes = DROPDOWN_GetNumItems(pMsg->hWin) - 1;
      20. while (DROPDOWN_GetItemDisabled(pMsg->hWin, NewSel)) {
      21. if (NewSel < OldSel) {
      22. NewSel = (NewSel > 0) ? NewSel - 1 : OldSel;
      23. } else if (NewSel > OldSel) {
      24. NewSel = (NewSel < NumIndexes) ? NewSel + 1 : OldSel;
      25. }
      26. }
      27. DROPDOWN_SetSel(pMsg->hWin, NewSel);
      28. }
      29. }
      30. break;
      31. default:
      32. DROPDOWN_Callback(pMsg);
      33. break;
      34. }
      35. }
      Display All

      Regards,
      Sven
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