CListCtrl使用技巧汇总(二)

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_SYSICONINEX | 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()后致使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,而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进行大数据量操做时，使用virtual list   
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：须要在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. 相似于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. 如下为一些为实现各类自定义功能的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中显示超连接
                   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
            &bsp;       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 中容许多行字符串
                    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/backgroundcolorandp_w_picpath/article.php/c4173/
                    http://www.codeguru.com/Cpp/controls/listview/backgroundcolorandp_w_picpath/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

//2009-05-06

35.  隐藏滚动条

void   CListView_ScrollBarView::OnSize(UINT   nType,   int   cx,   int   cy)    
  {  
  CListCtrl   &   ctrl   =   this->GetListCtrl   ();  
  if   (ctrl)  
  {  
                          //隐藏垂直滚动条  
          ::ShowScrollBar(   ctrl.m_hWnd,   SB_VERT,   FALSE);  
  }  
  CListView::OnSize(nType,   cx,   cy);  
  }

//2009-05-07

36. 处理键盘，循环滚动,不要在对话框中处理该消息，不然WListCtrlEx会产生两次按键事件

BOOL WListCtrlEx::PreTranslateMessage(MSG* pMsg)
{
 // TODO: Add your specialized code here and/or call the base class
 if (pMsg->message == WM_KEYDOWN)
 {
  if (pMsg->wParam == VK_DOWN)
  {
   int nSel = GetNextItem(-1, LVNI_SELECTED);
   if (nSel == -1)
    return FALSE;
   if (nSel == GetItemCount()-1)
   {
    EnsureVisible(0, FALSE);   //滚动条自动滚动到第80行  
    SetItemState(0, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED);
    return TRUE;
   }
  }
  if (pMsg->wParam == VK_UP)
  {  
   int nSel = GetNextItem(-1, LVNI_SELECTED);
   if (nSel == -1)
    return FALSE;
   if (nSel == 0)
   {
    EnsureVisible(GetItemCount()-1, FALSE);   //滚动条自动滚动到第80行 
    SetItemState(GetItemCount()-1, LVIS_SELECTED|LVIS_FOCUSED, LVIS_SELECTED|LVIS_FOCUSED);
    return TRUE;
   }
  }
 }
 
 return CListCtrl::PreTranslateMessage(pMsg);
}

 

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