CListCtrl使用技巧汇总【2】
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;
charcSysDir;
CStringstrBuf;
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, BOOLbAddToDocument)
{
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, BOOLbSelected)
{
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));
returnsfi.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 ReportView
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bitmapQ141834: How to change the icon or the bitmap of aCListCtrl 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 toShift
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columnheader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virtuallist 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columnheader上的鼠标右键单击Q125694: How To Find Out Which Listview Column WasRight-Clicked
http://support.microsoft.com/kb/125694/en-us
32.类似于windows资源管理器的listviewQ234310: How to implement a ListView control that issimilar to Windows Explorer by using DirLV.exe
http://support.microsoft.com/kb/234310/en-us
本文摘自:http://blog.sina.com.cn/s/blog_4171e80d0100ynch.html
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