1. ListCtrl 風(fēng)格
LVS_ICON: 為每個(gè)item顯示大圖標(biāo)
LVS_SMALLICON: 為每個(gè)item顯示小圖標(biāo)
LVS_LIST: 顯示一列帶有小圖標(biāo)的item
LVS_REPORT: 顯示item詳細(xì)資料
直觀的理解：windows資源管理器，“查看”標(biāo)簽下的“大圖標(biāo)，小圖標(biāo)，列表，詳細(xì)資料”
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2. 設(shè)置listctrl 風(fēng)格及擴(kuò)展風(fēng)格
LONG lStyle;
lStyle = GetWindowLong(m_list.m_hWnd, GWL_STYLE);//獲取當(dāng)前窗口style
lStyle &= ~LVS_TYPEMASK; //清除顯示方式位
lStyle |= LVS_REPORT; //設(shè)置style
SetWindowLong(m_list.m_hWnd, GWL_STYLE, lStyle);//設(shè)置style
DWORD dwStyle = m_list.GetExtendedStyle();
dwStyle |= LVS_EX_FULLROWSELECT;//選中某行使整行高亮（只適用與report風(fēng)格的listctrl）
dwStyle |= LVS_EX_GRIDLINES;//網(wǎng)格線（只適用與report風(fēng)格的listctrl）
dwStyle |= LVS_EX_CHECKBOXES;//item前生成checkbox控件
m_list.SetExtendedStyle(dwStyle); //設(shè)置擴(kuò)展風(fēng)格
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3. 插入數(shù)據(jù)
m_list.InsertColumn( 0, "ID", LVCFMT_LEFT, 40 );//插入列
m_list.InsertColumn( 1, "NAME", LVCFMT_LEFT, 50 );
int nRow = m_list.InsertItem(0, “11”);//插入行
m_list.SetItemText(nRow, 1, “jacky”);//設(shè)置數(shù)據(jù)
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4. 一直選中item
選中style中的Show selection always，或者在上面第2點(diǎn)中設(shè)置LVS_SHOWSELALWAYS
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5. 選中和取消選中一行
int nIndex = 0;
//選中
m_list.SetItemState(nIndex, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED);
//取消選中
m_list.SetItemState(nIndex, 0, LVIS_SELECTED|LVIS_FOCUSED);
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6. 得到listctrl中所有行的checkbox的狀態(tài)
m_list.SetExtendedStyle(LVS_EX_CHECKBOXES);
CString str;
for(int i=0; i<m_list.GetItemCount(); i )
{
if( m_list.GetItemState(i, LVIS_SELECTED) == LVIS_SELECTED || m_list.GetCheck(i))
{
str.Format(_T("第%d行的checkbox為選中狀態(tài)"), i);
AfxMessageBox(str);
}
}
CString strIns;
strIns="delete from tmpStatByGround";
m_pRs.CreateInstance(__uuidof(Recordset));
m_pRs->CursorLocation = adUseClient;
m_pRs->Open((LPCTSTR)strIns, vDispatch, adOpenKeyset,
adLockOptimistic, adCmdUnknown);
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7. 得到listctrl中所有選中行的序號(hào)
方法一：
CString str;
for(int i=0; i<m_list.GetItemCount(); i )
{
if( m_list.GetItemState(i, LVIS_SELECTED) == LVIS_SELECTED )
{
str.Format(_T("選中了第%d行"), i);
AfxMessageBox(str);
}
}
方法二：
POSITION pos = m_list.GetFirstSelectedItemPosition();
if (pos == NULL)
TRACE0("No items were selected!n");
else
{
while (pos)
{
int nItem = m_list.GetNextSelectedItem(pos);
TRACE1("Item %d was selected!n", nItem);
// you could do your own processing on nItem here
}
}
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8. 得到item的信息
TCHAR szBuf[1024];
LVITEM lvi;
lvi.iItem = nItemIndex;
lvi.iSubItem = 0;
lvi.mask = LVIF_TEXT;
lvi.pszText = szBuf;
lvi.cchTextMax = 1024;
m_list.GetItem(&lvi);
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9. 得到listctrl的所有列的header字符串內(nèi)容
LVCOLUMN lvcol;
char str[256];
int nColNum;
CString strColumnName[4];//假如有4列
nColNum = 0;
lvcol.mask = LVCF_TEXT;
lvcol.pszText = str;
lvcol.cchTextMax = 256;
while(m_list.GetColumn(nColNum, &lvcol))
{
strColumnName[nColNum] = lvcol.pszText;
nColNum ;
}
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10. 使listctrl中一項(xiàng)可見，即滾動(dòng)滾動(dòng)條
m_list.EnsureVisible(i, FALSE);
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11. 得到listctrl列數(shù)
int nHeadNum = m_list.GetHeaderCtrl()->GetItemCount();
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12. 刪除所有列
方法一：
while ( m_list.DeleteColumn (0))
因?yàn)槟銊h除了第一列后，后面的列會(huì)依次向上移動(dòng)。
方法二：
int nColumns = 4;
for (int i=nColumns-1; i>=0; i--)
m_list.DeleteColumn (i);
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13. 得到單擊的listctrl的行列號(hào)
添加listctrl控件的NM_CLICK消息相應(yīng)函數(shù)
void CTest6Dlg::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
// 方法一：
/*
DWORD dwPos = GetMessagePos();
CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
m_list.ScreenToClient(&point);
LVHITTESTINFO lvinfo;
lvinfo.pt = point;
lvinfo.flags = LVHT_ABOVE;
int nItem = m_list.SubItemHitTest(&lvinfo);
if(nItem != -1)
{
CString strtemp;
strtemp.Format("單擊的是第%d行第%d列", lvinfo.iItem, lvinfo.iSubItem);
AfxMessageBox(strtemp);
}
*/
// 方法二:
/*
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
if(pNMListView->iItem != -1)
{
CString strtemp;
strtemp.Format("單擊的是第%d行第%d列",
pNMListView->iItem, pNMListView->iSubItem);
AfxMessageBox(strtemp);
}
*/
*pResult = 0;
}
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14. 判斷是否點(diǎn)擊在listctrl的checkbox上
添加listctrl控件的NM_CLICK消息相應(yīng)函數(shù)
void CTest6Dlg::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
DWORD dwPos = GetMessagePos();
CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
m_list.ScreenToClient(&point);
LVHITTESTINFO lvinfo;
lvinfo.pt = point;
lvinfo.flags = LVHT_ABOVE;
UINT nFlag;
int nItem = m_list.HitTest(point, &nFlag);
//判斷是否點(diǎn)在checkbox上
if(nFlag == LVHT_ONITEMSTATEICON)
{
AfxMessageBox("點(diǎn)在listctrl的checkbox上");
}
*pResult = 0;
}
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15. 右鍵點(diǎn)擊listctrl的item彈出菜單
添加listctrl控件的NM_RCLICK消息相應(yīng)函數(shù)
void CTest6Dlg::OnRclickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
if(pNMListView->iItem != -1)
{
DWORD dwPos = GetMessagePos();
CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
CMenu menu;
VERIFY( menu.LoadMenu( IDR_MENU1 ) );
CMenu* popup = menu.GetSubMenu(0);
ASSERT( popup != NULL );
popup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, this );
}
*pResult = 0;
}
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16. item切換焦點(diǎn)時(shí)(包括用鍵盤和鼠標(biāo)切換item時(shí))，狀態(tài)的一些變化順序
添加listctrl控件的LVN_ITEMCHANGED消息相應(yīng)函數(shù)
void CTest6Dlg::OnItemchangedList1(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
// TODO: Add your control notification handler code here
CString sTemp;
if((pNMListView->uOldState & LVIS_FOCUSED) == LVIS_FOCUSED &&
(pNMListView->uNewState & LVIS_FOCUSED) == 0)
{
sTemp.Format("%d losted focus",pNMListView->iItem);
}
else if((pNMListView->uOldState & LVIS_FOCUSED) == 0 &&
(pNMListView->uNewState & LVIS_FOCUSED) == LVIS_FOCUSED)
{
sTemp.Format("%d got focus",pNMListView->iItem);
}
if((pNMListView->uOldState & LVIS_SELECTED) == LVIS_SELECTED &&
(pNMListView->uNewState & LVIS_SELECTED) == 0)
{
sTemp.Format("%d losted selected",pNMListView->iItem);
}
else if((pNMListView->uOldState & LVIS_SELECTED) == 0 &&
(pNMListView->uNewState & LVIS_SELECTED) == LVIS_SELECTED)
{
sTemp.Format("%d got selected",pNMListView->iItem);
}
*pResult = 0;
}
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17. listctrl的 subitem 添加圖標(biāo)
注意: 首先要用 InsertItem() 插入一行的第一列, 然后才能用 SetItem 設(shè)置其他項(xiàng)
m_list.SetExtendedStyle(LVS_EX_SUBITEMIMAGES);
m_userlist.SetItem(..);
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18. 在CListCtrl顯示文件，并根據(jù)文件類型來顯示圖標(biāo)
網(wǎng)上找到的代碼，自己試用并改正過, share
步驟1: 設(shè)置 list 的圖像列表為 系統(tǒng)圖像列表
BOOL SetSystemImageList( CListCtrl & list )
{
HIMAGELIST himlSmall;
HIMAGELIST himlLarge;
SHFILEINFO sfi;
char cSysDir[MAX_PATH];
CString strBuf;
memset(cSysDir, 0, MAX_PATH);
GetWindowsDirectory(cSysDir, MAX_PATH);
strBuf = cSysDir ;
// SHGetFileInfo:
// If uFlags contains SHGFI_SYSICONINDEX, the return value is a handle to
// an image list that contains the large icon images.
// If SHGFI_SMALLICON is included with SHGFI_SYSICONINDEX, the return value
// is the handle to an image list that contains the small icon images.
//
himlSmall = (HIMAGELIST)SHGetFileInfo ( (LPCSTR)cSysDir,
0,
&sfi,
sizeof(SHFILEINFO),
SHGFI_SYSICONINDEX | SHGFI_SMALLICON );
himlLarge = (HIMAGELIST)SHGetFileInfo((LPCSTR)cSysDir,
0,
&sfi,
sizeof(SHFILEINFO),
SHGFI_SYSICONINDEX | SHGFI_LARGEICON);
if (himlSmall && himlLarge)
{
::SendMessage(list.m_hWnd, LVM_SETIMAGELIST,
(WPARAM)LVSIL_SMALL, (LPARAM)himlSmall);
::SendMessage(list.m_hWnd, LVM_SETIMAGELIST,
(WPARAM)LVSIL_NORMAL, (LPARAM)himlLarge);
}
return TRUE;
}
步驟2: 給列表添加指定的文件, 同時(shí)獲得該文件的的圖標(biāo)索引, 給 list 添加圖標(biāo)
int GetIconIndex(LPCTSTR lpszPath, BOOL bIsDir, BOOL bSelected) ; // 向前聲明
void AddFiles(CListCtrl & list, LPCTSTR lpszFileName, BOOL bAddToDocument)
{
int nIcon = GetIconIndex(lpszFileName, FALSE, TRUE);
CString strSize;
CFileFind filefind;
// get file size
if ( filefind.FindFile(lpszFileName))
{
filefind.FindNextFile();
strSize.Format("%d", filefind.GetLength());
}
else
strSize = "0";
// split path and filename
CString strFileName = lpszFileName;
CString strPath;
int nPos = strFileName.ReverseFind('');
if (nPos != -1)
{
strPath = strFileName.Left(nPos);
strFileName = strFileName.Mid(nPos 1);
}
// insert to list
int nItem = list.GetItemCount();
//list.InsertItem(nItem, strFileName, nIcon);
//list.SetItemText(nItem, 1, strSize);
//
// 此處可以根據(jù)實(shí)際需要修改代碼
//
}
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19. listctrl內(nèi)容進(jìn)行大數(shù)據(jù)量更新時(shí)，避免閃爍
m_list.SetRedraw(FALSE);
//更新內(nèi)容
m_list.SetRedraw(TRUE);
m_list.Invalidate();
m_list.UpdateWindow();
20. 清除 ListCtrl 以重新初始化:
// 刪除所有行
m_ctrllist.DeleteAllItems() ;
// 刪除所有列
int iColCount = m_ctrllist.GetHeaderCtrl()->GetItemCount() ;
// 方法 1
// 原理: 刪除第一列后, 其他列向前移動(dòng)
while( m_ctrllist.DeleteColumn(0) ) ;
// 方法 2
for (int i=0; i < iColCount ; i )
{
m_ctrllist.DeleteColumn(0);
}
// 方法 3
for (int i=iColCount-1; i >= 0; i-- )
{
m_ctrllist.DeleteColumn( i );
}