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MFC 控件使用之ListCtrl之一

benojan • 2024-03-08 22:21 • 172 次点击 • c/c++


作者:lixiaosan
时间:04/06/2006

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

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

选中属性中的 始终显示选定内容

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

8.1 得到选中的行的每一项的信息

// 得到具体的某一项:
CString str;
int nId;
// 首先得到点击的位置
POSITION pos = m_listcontrol.GetFirstSelectedItemPosition();
if(pos == NULL)
{
    MessageBox("请至少选择一项","娃子理财", MB_ICONEXCLAMATION);
    return;
}
// 得到行号,通过POSITION转化
nId = (int) m_listcontrol.GetNextSelectedItem(pos);
//得到列中的内容(0表示第一列,同理1,2,3...表示第二,三,四...列)
str = m_listcontrol.GetItemText(nId, 0);
str = m_listcontrol.GetItemText(nId, 1);

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;
}
  1. 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

MFC ListCtrl