List control用法

MFC如何使用 List Control


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


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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


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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      {
           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      {
           if( m_list.GetItemState(i, LVIS_SELECTED) == LVIS_SELECTED )
           {
                str.Format(_T("选中了第%d行"), i);
              nbsp; 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;
   nbsp;        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itemQ131284: 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];
           String 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bitmapQ141834: 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.microsoft.com/msj/archive/S2061.aspx
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listviewQ234310: 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