Question

I have combo box and delete button. I want to make next combo box item pop-up when delete button pressed and when last item deleted clean combo box selected item.

I tried several methods with indexes but even one wont help me.

there is my code:

if(IDYES == MessageBox(L"Delete save?",L"Delete", MB_YESNO|MB_ICONQUESTION)){
            CString pFileName = L"Save\\"+str+".dat";
            CFile::Remove(pFileName);
            CComboBox* pComboBox = (CComboBox*)GetDlgItem(IDC_COMBO_SAVE);
            pComboBox->ResetContent();
        }

How I can to make next combo box item pop-up when delete button pressed and when last item deleted clean combo box selected item?

Answer 1

I found a solution:

void CL2HamsterDlg::OnBnClickedButtonDelete(){
    if(Validate()){
        if(IDYES == MessageBox(L"Delete save?",L"Delete", MB_YESNO|MB_ICONQUESTION)){
            CString pFileName = L"Save\\"+str+".dat";
            CFile::Remove(pFileName);
            CComboBox* pComboBox = (CComboBox*)GetDlgItem(IDC_COMBO_SAVE);
            lookforfile();
            int nIndex = pComboBox->GetCurSel();
            if (nIndex == CB_ERR)
                pComboBox->SetCurSel(0);
            else{
                pComboBox->SetEditSel(0, -1);
                pComboBox->Clear();
            }
        }
        LoadSave(false);
    }else
        AfxMessageBox(L"Please select or write correct name!");
}

the function look for file refreshes index

void CL2HamsterDlg::lookforfile()
{
    Value.GetWindowText(str);
    CComboBox* pComboBox = (CComboBox*)GetDlgItem(IDC_COMBO_SAVE);
    pComboBox->ResetContent();
    GetCurrentDirectory(MAX_PATH,curWorkingDir);
    _tcscat_s(curWorkingDir, MAX_PATH, _T("\\Save\\*.dat"));
    BOOL bWorking = finder.FindFile(curWorkingDir);
    while (bWorking){   
        bWorking = finder.FindNextFile();
        if (!finder.IsDots())
            pComboBox->AddString(finder.GetFileTitle());
    }
    GetDlgItem(IDC_COMBO_SAVE)->SetWindowText(str);
}