CListCtrl使用技巧

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CListCtrl使用技巧:

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以下未经说明，listctrl默认view 风格为report

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1. CListCtrl 风格
      LVS_ICON: 为每个item显示大图标
      LVS_SMALLICON: 为每个item显示小图标
      LVS_LIST: 显示一列带有小图标的item
      LVS_REPORT: 显示item详细资料

直观的理解：windows资源管理器，“查看”标签下的“大图标，小图标，列表，详细资料”
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2. 设置listctrl 风格及扩展风格
      LONG lStyle; lStyle = GetWindowLong(m_list.m_hWnd, GWL_STYLE);//获取当前窗口style lStyle &= ~LVS_TYPEMASK; //清除显示方式位 lStyle |= LVS_REPORT; //设置style SetWindowLong(m_list.m_hWnd, GWL_STYLE, lStyle);//设置style DWORD dwStyle = m_list.GetExtendedStyle(); dwStyle |= LVS_EX_FULLROWSELECT;//选中某行使整行高亮（只适用与report风格的listctrl） dwStyle |= LVS_EX_GRIDLINES;//网格线（只适用与report风格的listctrl） dwStyle |= LVS_EX_CHECKBOXES;//item前生成checkbox控件 m_list.SetExtendedStyle(dwStyle); //设置扩展风格
      注：listview的style请查阅msdn
      http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceshellui5/html/wce50lrflistviewstyles.asp
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3. 插入数据

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”);//设置数据
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4. 一直选中item
选中style中的Show selection always，或者在上面第2点中设置LVS_SHOWSELALWAYS

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5. 选中和取消选中一行
int nIndex = 0; //选中 m_list.SetItemState(nIndex, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED); //取消选中 m_list.SetItemState(nIndex, 0, LVIS_SELECTED|LVIS_FOCUSED);
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6. 得到listctrl中所有行的checkbox的状态
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为选中状态"), i); AfxMessageBox(str); } }
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7. 得到listctrl中所有选中行的序号

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("选中了第%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);

      关于得到设置item的状态，还可以参考msdn文章
      Q173242: Use Masks to Set/Get Item States in CListCtrl
               http://support.microsoft.com/kb/173242/en-us
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9. 得到listctrl的所有列的header字符串内容

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中一项可见，即滚动滚动条
m_list.EnsureVisible(i, FALSE);
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11. 得到listctrl列数
int nHeadNum = m_list.GetHeaderCtrl()->GetItemCount();
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12. 删除所有列
方法一：
while ( m_list.DeleteColumn (0))
因为你删除了第一列后，后面的列会依次向上移动。

方法二：
int nColumns = 4; for (int i=nColumns-1; i>=0; i--) m_list.DeleteColumn (i);
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13. 得到单击的listctrl的行列号
添加listctrl控件的NM_CLICK消息相应函数
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("单击的是第%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("单击的是第%d行第%d列", pNMListView->iItem, pNMListView->iSubItem); AfxMessageBox(strtemp); } */ *pResult = 0; }
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14. 判断是否点击在listctrl的checkbox上
添加listctrl控件的NM_CLICK消息相应函数

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); //判断是否点在checkbox上 if(nFlag == LVHT_ONITEMSTATEICON) { AfxMessageBox("点在listctrl的checkbox上"); } *pResult = 0; }
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15. 右键点击listctrl的item弹出菜单
添加listctrl控件的NM_RCLICK消息相应函数
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切换焦点时(包括用键盘和鼠标切换item时)，状态的一些变化顺序
添加listctrl控件的LVN_ITEMCHANGED消息相应函数
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. 得到另一个进程里的listctrl控件的item内容
http://www.codeproject.com/threads/int64_memsteal.asp

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18. 选中listview中的item
Q131284: How To Select a Listview Item Programmatically
http://support.microsoft.com/kb/131284/en-us

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19. 如何在CListView中使用CListCtrl的派生类
http://www.codeguru.com/cpp/controls/listview/introduction/article.php/c919/

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20. listctrl的subitem添加图标
m_list.SetExtendedStyle(LVS_EX_SUBITEMIMAGES); m_list.SetItem(..); //具体参数请参考msdn

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21. 在CListCtrl显示文件，并根据文件类型来显示图标
网上找到的代码，share
BOOL CTest6Dlg::OnInitDialog() { CDialog::OnInitDialog(); HIMAGELIST himlSmall; HIMAGELIST himlLarge; SHFILEINFO sfi; char cSysDir[MAX_PATH]; CString strBuf; memset(cSysDir, 0, MAX_PATH); GetWindowsDirectory(cSysDir, MAX_PATH); strBuf = cSysDir; sprintf(cSysDir, "%s", strBuf.Left(strBuf.Find("")+1)); 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(m_list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_SMALL, (LPARAM)himlSmall); ::SendMessage(m_list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_NORMAL, (LPARAM)himlLarge); } return TRUE; // return TRUE unless you set the focus to a control } void CTest6Dlg::AddFiles(LPCTSTR lpszFileName, BOOL bAddToDocument) { int nIcon = GetIconIndex(lpszFileName, FALSE, FALSE); 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 = m_list.GetItemCount(); m_list.InsertItem(nItem, strFileName, nIcon); m_list.SetItemText(nItem, 1, strSize); m_list.SetItemText(nItem, 2, strFileName.Right(3)); m_list.SetItemText(nItem, 3, strPath); } int CTest6Dlg::GetIconIndex(LPCTSTR lpszPath, BOOL bIsDir, BOOL bSelected) { SHFILEINFO sfi; memset(&sfi, 0, sizeof(sfi)); if (bIsDir) { SHGetFileInfo(lpszPath, FILE_ATTRIBUTE_DIRECTORY, &sfi, sizeof(sfi), SHGFI_SMALLICON | SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES |(bSelected ? SHGFI_OPENICON : 0)); return sfi.iIcon; } else { SHGetFileInfo (lpszPath, FILE_ATTRIBUTE_NORMAL, &sfi, sizeof(sfi), SHGFI_SMALLICON | SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES | (bSelected ? SHGFI_OPENICON : 0)); return sfi.iIcon; } return -1; }
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22. listctrl内容进行大数据量更新时，避免闪烁
m_list.SetRedraw(FALSE); //更新内容 m_list.SetRedraw(TRUE); m_list.Invalidate(); m_list.UpdateWindow();
或者参考

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cwnd.3a3a.setredraw.asp
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23. listctrl排序
Q250614：How To Sort Items in a CListCtrl in Report View
http://support.microsoft.com/kb/250614/en-us
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24. 在listctrl中选中某个item时动态改变其icon或bitmap
Q141834: How to change the icon or the bitmap of a CListCtrl item in Visual C++
http://support.microsoft.com/kb/141834/en-us

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25. 在添加item后，再InsertColumn()后导致整列数据移动的问题
Q151897: CListCtrl::InsertColumn() Causes Column Data to Shift
http://support.microsoft.com/kb/151897/en-us
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26. 关于listctrl第一列始终居左的问题
解决办法：把第一列当一个虚列，从第二列开始插入列及数据，最后删除第一列。
具体解释参阅 http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/listview/structures/lvcolumn.asp
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27. 锁定column header的拖动
http://msdn.microsoft.com/msdnmag/issues/03/06/CQA/
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28. 如何隐藏clistctrl的列
把需隐藏的列的宽度设为0,然后检测当该列为隐藏列时，用上面第27点的锁定column 的拖动来实现
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29. listctrl进行大数据量操作时，使用virtual list
http://www.codeguru.com/cpp/controls/listview/advanced/article.php/c4151/
http://www.codeproject.com/listctrl/virtuallist.asp
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30. 关于item只能显示259个字符的问题
解决办法：需要在item上放一个edit。
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31. 响应在listctrl的column header上的鼠标右键单击
Q125694: How To Find Out Which Listview Column Was Right-Clicked
http://support.microsoft.com/kb/125694/en-us
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32. 类似于windows资源管理器的listview
Q234310: How to implement a ListView control that is similar to Windows Explorer by using DirLV.exe
http://support.microsoft.com/kb/234310/en-us
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33. 在ListCtrl中OnTimer只响应两次的问题
Q200054：
PRB: OnTimer() Is Not Called Repeatedly for a List Control
http://support.microsoft.com/kb/200054/en-us
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34. 以下为一些为实现各种自定义功能的listctrl派生类
(1) 拖放
http://www.codeproject.com/listctrl/dragtest.asp

在CListCtrl和CTreeCtrl间拖放
http://support.microsoft.com/kb/148738/en-us

(2) 多功能listctrl
支持subitem可编辑，图标，radiobutton，checkbox，字符串改变颜色的类
http://www.codeproject.com/listctrl/quicklist.asp

支持排序，subitem可编辑，subitem图标，subitem改变颜色的类
http://www.codeproject.com/listctrl/ReportControl.asp

(3) subitem中显示超链接
http://www.codeproject.com/listctrl/CListCtrlLink.asp

(4) subitem的tooltip提示
http://www.codeproject.com/listctrl/ctooltiplistctrl.asp

(5) subitem中显示进度条
http://www.codeproject.com/listctrl/ProgressListControl.asp
http://www.codeproject.com/listctrl/napster.asp
http://www.codeguru.com/Cpp/controls/listview/article.php/c4187/

(6) 动态改变subitem的颜色和背景色
http://www.codeproject.com/listctrl/highlightlistctrl.asp
http://www.codeguru.com/Cpp/controls/listbox/colorlistboxes/article.php/c4757/

(7) 类vb属性对话框
http://www.codeproject.com/listctrl/propertylistctrl.asp
http://www.codeguru.com/Cpp/controls/listview/propertylists/article.php/c995/
http://www.codeguru.com/Cpp/controls/listview/propertylists/article.php/c1041/

(8) 选中subitem(只高亮选中的item)
http://www.codeproject.com/listctrl/SubItemSel.asp
http://www.codeproject.com/listctrl/ListSubItSel.asp

(9) 改变行高
http://www.codeproject.com/listctrl/changerowheight.asp

(10) 改变行颜色
http://www.codeproject.com/listctrl/coloredlistctrl.asp

(11) 可编辑subitem的listctrl
http://www.codeproject.com/listctrl/nirs2000.asp
http://www.codeproject.com/listctrl/editing_subitems_in_listcontrol.asp

(12) subitem可编辑，插入combobox，改变行颜色，subitem的tooltip提示
http://www.codeproject.com/listctrl/reusablelistcontrol.asp

(13) header 中允许多行字符串
http://www.codeproject.com/listctrl/headerctrlex.asp

(14) 插入combobox
http://www.codeguru.com/Cpp/controls/listview/editingitemsandsubitem/article.php/c979/

(15) 添加背景图片
http://www.codeguru.com/Cpp/controls/listview/backgroundcolorandimage/article.php/c4173/
http://www.codeguru.com/Cpp/controls/listview/backgroundcolorandimage/article.php/c983/
http://www.vchelp.net/vchelp/archive.asp?type_id=9&class_id=1&cata_id=1&article_id=1088&search_term =

(16) 自适应宽度的listctrl
http://www.codeproject.com/useritems/AutosizeListCtrl.asp

(17) 改变ListCtrl高亮时的颜色(默认为蓝色)
处理 NM_CUSTOMDRAW
http://www.codeproject.com/listctrl/lvcustomdraw.asp