在CListView中，如何让每隔一行的颜色不同

Question

我调用了CListCtrl中的DrawItem()可以有颜色出现了，但是每行的字都没有了
我不知道错在了那里，那位高手给我只点一下吧！
以下是代码
void CMyDataBaseView::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct ) 
{
CListCtrl& theCtrl = GetListCtrl();
CDC             *pDC = CDC::FromHandle(lpDrawItemStruct -> hDC);
CRect  rcItem(lpDrawItemStruct -> rcItem); 
int    nItem = lpDrawItemStruct ->itemID;
int    nSavedDC = pDC->SaveDC();
CRect                        rcBounds,rcLabel;
LV_ITEM lvi;
lvi.mask = LVIF_IMAGE | LVIF_STATE;
lvi.iItem = nItem;
lvi.iSubItem = 0;
lvi.stateMask = 0xFFFF;
theCtrl.GetItem(&lvi);
theCtrl.GetItemRect(nItem, rcBounds, LVIR_BOUNDS);
theCtrl.GetItemRect(nItem, rcLabel, LVIR_LABEL);
    CString sLabel = theCtrl.GetItemText( nItem, 0 );
  //  theCtrl.SetItemText( nItem, 0 ,sLabel);
CRect rcClient, rcRow = rcItem;
GetClientRect(&rcClient);
rcLabel.right = rcClient.right;
pDC->SetTextColor(RGB(0,0,0));
pDC->FillRect(rcLabel, &CBrush(nItem%2 ? RGB(115,100,115):
  RGB(115,125,122)));//::GetSysColor(COLOR_WINDOW)
pDC->RestoreDC( nSavedDC );}

Answer 1

pDC->FillRect(rcLabel, &CBrush(nItem%2 ? RGB(115,100,115) : RGB(115,125,122)));
这不是填充了背景吗，下面就要绘制内容了：
pDC->TextOut(...);

Answer 2

http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/custdraw/custdraw.asp.....
case CDDS_SUBITEM | CDDS_ITEMPREPAINT:
        SelectObject(lplvcd->nmcd.hdc,
                     GetFontForSubItem(lplvcd->nmcd.dwItemSpec,
                                       lplvcd->nmcd.lItemlParam,
                                       lplvcd->iSubItem));
        lplvcd->clrText = GetColorForSubItem(lplvcd->nmcd.dwItemSpec,
                                             lplvcd->nmcd.lItemlParam,
                                             lplvcd->iSubItem));
        lplvcd->clrTextBk = GetBkColorForSubItem(lplvcd->nmcd.dwItemSpec,
                                                 lplvcd->nmcd.lItemlParam,
                                                 lplvcd->iSubItem));/* This notification is received only if you are in report mode and
returned CDRF_NOTIFYSUBITEMDRAW in the previous step. At
this point, you can change the background colors for the
subitem and return CDRF_NEWFONT.*/        ...
        return CDRF_NEWFONT;    ....

Answer 3

上面那位MVP兄使用的是CustomDraw，与OwnerDraw是不同的，需要注意。

Answer 4

ͨ¹ý´¦ÀíNM_CUSTOMDRAW£¬¿ÉÒÔʵÏÖÄãµÄ¹¦ÄÜ£¡µ«ÊÇNM_CUSTOMDRAWÔÚClass WizardÖÐÓпÉÄÜ¿´²»µ½£¬²»ÓùÜËû£¬Ö±½Ó°´ÕÕСÃæµÄ·½·¨Ìí¼Ó´¦Àí¹ý³Ì¼´¿É£¡1. ÔÚÏûÏ¢Ó³Éä±íÖÐ
   BEGIN_MESSAGE_MAP(CIHISSERVERView, CListView)
//{{AFX_MSG_MAP(CIHISSERVERView)
...
ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw)
         ...
//}}AFX_MSG_MAP
// Standard printing commands
END_MESSAGE_MAP()2.ÔÚÍ·ÎļþÖÐ
  afx_msg void OnCustomDraw(NMHDR*, LRESULT*);3.ÔÚcppÎļþÖÐ
void CMyView::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
// TODO: ÔÚ´ËÌí¼ÓÏûÏ¢´¦Àí³ÌÐò´úÂë
// Contains information specific to an NM_CUSTOMDRAW 
// notification message sent by a list-view control.
// mean:draw each item.set txt color,bkcolor....
NMLVCUSTOMDRAW* pLVCD = (NMLVCUSTOMDRAW*)(pNMHDR); // Take the default processing unless we set this to something else below.
*pResult = CDRF_NEWFONT; // First thing - check the draw stage. If it's the control's prepaint
// stage, then tell Windows we want messages for every item.
if ( pLVCD->nmcd.dwDrawStage==CDDS_PREPAINT)
{
*pResult = CDRF_NOTIFYITEMDRAW;
}
// This is the notification message for an item.  We'll request
// notifications before each subitem's prepaint stage.
else if ( pLVCD->nmcd.dwDrawStage==CDDS_ITEMPREPAINT ) 
{
COLORREF   m_crTextBk , m_clrText;
int nItem = static_cast<int> (pLVCD->nmcd.dwItemSpec);

CListCtrl &m_list = GetListCtrl();
CString str1 = m_list.GetItemText(nItem ,15);

bool bDBImplFail = false ;
if (pLVCD->nmcd.dwItemSpec%2==0)
{
m_crTextBk = RGB(253,241,249) ;
m_clrText  = RGB(0,0,0) ;
}
else
{
m_crTextBk =  RGB(51,153,255);
m_clrText  =  RGB(0,0,0);
}

pLVCD->clrTextBk = m_crTextBk;
pLVCD->clrText = m_clrText;
*pResult = CDRF_DODEFAULT;
}
}