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CListCtrl 使用技巧

技术2022-05-11  0

以下未经说明,listctrl默认view 风格为report

相关类及处理函数

MFC:CListCtrl类

SDK:以 “ListView_”开头的一些宏。如 ListView_InsertColumn


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”

 


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

 


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

 


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

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);


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);            }       }

 


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            }       }

 


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


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++;       }

 


10. 使listctrl中一项可见,即滚动滚动条

    m_list.EnsureVisible(i, FALSE);

11. 得到listctrl列数

    int nHeadNum = m_list.GetHeaderCtrl()->GetItemCount();

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);

 


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;       }

 


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;       }

 


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;   }

 

 


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;       }


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

18. 选中listview中的item

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

19. 如何在CListView中使用CListCtrl的派生类

http://www.codeguru.com/cpp/controls/listview/introduction/article.php/c919/


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

 


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;       }

 


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


23. listctrl排序

Q250614:How To Sort Items in a CListCtrl in Report View http://support.microsoft.com/kb/250614/en-us


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

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


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

 


27. 锁定column header的拖动

http://msdn.microsoft.com/msdnmag/issues/03/06/CQA/


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


29. listctrl进行大数据量操作时,使用virtual list    

http://www.microsoft.com/msj/archive/S2061.aspx http://www.codeguru.com/cpp/controls/listview/advanced/article.php/c4151/ http://www.codeproject.com/listctrl/virtuallist.asp


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。

 


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


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

 


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


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

     (18)  改变header颜色           http://www.pocketpcdn.com/articles/hdr_color.html

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