CComboBox* CSHListCtrl::ShowInPlaceComboBox(int nItem, int nSubitem,DWORD dwStyle)
{
// The returned pointer should not be saved
// Make sure that the item is visible
// My code start here
if (!EnsureVisible(nItem, TRUE) )
return NULL;
// Make sure that nCol is valid
CHeaderCtrl* pHeader = (CHeaderCtrl*)GetDlgItem(0);
int nColumnCount = pHeader->GetItemCount();
if( nSubitem >= nColumnCount || GetColumnWidth(nSubitem) < 10 )
return NULL;
// Get the column offset
int offset = 0;
for(int i = 0; i < nSubitem; i++)
offset += GetColumnWidth(i);
CRect rect;
GetItemRect(nItem, &rect, LVIR_BOUNDS);
// Now scroll if we need to expose the column
CRect rcClient;
GetClientRect(&rcClient);
if(offset + rect.left < 0 || offset + rect.left > rcClient.right)
{
CSize size;
size.cx = offset + rect.left;
size.cy = 0;
Scroll(size);
rect.left -= size.cx;
}
rect.left += offset;
rect.right = rect.left + GetColumnWidth( nSubitem ) ;
int height = rect.bottom - rect.top;
rect.bottom += 22 * height;
if (rect.right > rcClient.right)
rect.right = rcClient.right;
dwStyle |= WS_CHILD | WS_VISIBLE | WS_VSCROLL | CBS_DISABLENOSCROLL;
CComboBox* pList = new CSHInPlaceComboBox(nItem, nSubitem);
pList->Create(dwStyle, rect, this, IDC_INPLACE_COMBOBOX);
pList->SetItemHeight(-1, height);
pList->SetHorizontalExtent(GetColumnWidth(nSubitem));
CString strWindowText = GetItemText(nItem, nSubitem);
if(dwStyle & CBS_DROPDOWN && !(dwStyle & CBS_DROPDOWNLIST))
{
CEdit* m_pEdit = new CEdit();
m_pEdit->SubclassWindow(pList->GetDlgItem(1001)->GetSafeHwnd());
m_pEdit->SetWindowText(strWindowText);
m_pEdit->SetSel(0,-1);
}
return pList;
// My code end here
}
