MFC CListCtrl的用法.Style/插入、删除、选中数据及排序问题等(转)
MFC CListCtrl的用法.Style/插入、删除、选中数据及排序问题等2010-02-05 19:04摘抄自:http://hi.baidu.com/fclshark/blog/item/650cbaa731b7619fd14358dc.html
功能强大的CListCtrl:做网络笔记,还需添加修改CListCtrl改变行的颜色,列的颜色,字体颜色等.
资源属性里面有个sort设置排序的,如果不小心选了Ascending,那么你insertItem的顺序就就1,10,11,12,13,14,15,16,17,18,19,2,20,21....所以要注意.首先使用下面的语句设置CListCtrl的style:DWORD SetExtendedStyle( DWORD dwNewStyle );其中LVS_EX_CHECKBOXES 表示添加CheckBoxLVS_EX_FULLROWSELECT 表示选择整行LVS_EX_GRIDLINES 表示添加表格线
如果设置了LVS_EX_CHECKBOXES属性,则可以用BOOL GetCheck( int nItem ) const;来得到某一行是否Checked。
可以先用下面的语句来删除以前的东西:for(int k=2;k>=0;k--) //注意要从后往前删,否则出错m_ListCtrl.DeleteColumn(k);m_ListCtrl.DeleteAllItems();
用下面的语句新建列:m_ListCtrl.InsertColumn(0,_T("文件名"),LVCFMT_IMAGE|LVCFMT_LEFT);m_ListCtrl.InsertColumn(1,_T("仪器类别"));m_ListCtrl.InsertColumn(2,_T("项目类别"));
其中LVCFMT_IMAGE表示可以在第一列加入图标。如果不要图标可以删去。
然后设置列宽:for(j=0;j<3;j++)m_ListCtrl.SetColumnWidth(j ,100);
以下为列表加入图标,如果不需要图标,可以跳过这一步。注意只在第一次加入,如果多次加入会出错!先在头文件中加入声明:CImageList m_ImageList;这是必要的,如果在cpp的某个函数中加入由于生命期结束,CImageList自动释放,则效果是列表中看不到图标,只看到一个白方块。下面生成CImageList,并将其绑定到CListCtrl中,这是CImageList中还没有图标,只是一个容器:static int flag=2;if(flag==2){//只调用一次SetImageList,否则出错m_ImageList.Create(128, 128, ILC_COLORDDB|ILC_MASK, 20, 1); m_ListCtrl.SetImageList(&m_ImageList,LVSIL_SMALL);}flag=(flag+1)%2;如果CListCtrl已经用过,曾经加过图标进去,这时就要删除上次放进m_ImageList中的Imagefor(int kk=0;kk<m_ImageList.GetImageCount();kk++)m_ImageList.Remove(k);
下面介绍如何向CListCtrl里面加入行,并同时为每一行动态加入图标:假设m_listRowCount为要加入的行数。CBitmap* bitmap;bitmap=new CBitmap[m_list1rowCount];HBITMAP hbitmap;
for(int i = 0; i < m_listRowCount; i++){//为每一行插入相应的缩略图CFile f;CFileException e; if( !f.Open(m_FileName, CFile::modeRead, &e )){ //m_FileName为bmp文件名,由你来定 hbitmap = (HBITMAP)LoadImage(NULL,path+"blank.bmp",IMAGE_BITMAP,0,0, LR_CREATEDIBSECTION|LR_DEFAULTSIZE|LR_LOADFROMFILE);}else{ f.Close(); hbitmap = (HBITMAP)LoadImage(NULL,bmpFile,IMAGE_BITMAP,0,0, LR_CREATEDIBSECTION|LR_DEFAULTSIZE|LR_LOADFROMFILE);}bitmap[i].Attach(hbitmap);m_ImageList.Add(&bitmap[i], RGB(0, 128, 128));
//插入行m_ListCtrl.InsertItem(i,m_FileName,i);m_ListCtrl.SetItemText(i,1,type);m_ListCtrl.SetItemText(i,2,m_Path);}
//记得删除已经没用的临时文件if(m_list1rowCount!=0)delete[] bitmap;
2。如果是ICON类型的CListCtrl,则要做一点点改动:把绑定图标集的代码由SetImageList(&m_ImageList,LVSIL_SMALL);改为SetImageList(&m_ImageList,LVSIL_NORMAL);
插入行时只用InsertItem(i,mainSet.m_FileName,i);不用SetItemText(i,1,type);之类的代码。
1. ListCtrl 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<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); } }
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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<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 } }
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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);
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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; 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. listctrl的 subitem 添加图标
注意: 首先要用 InsertItem() 插入一行的第一列, 然后才能用 SetItem 设置其他项 m_list.SetExtendedStyle(LVS_EX_SUBITEMIMAGES); m_userlist.SetItem(..);
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18. 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,自己试用并改正过, share
步骤1: 设置 list 的图像列表为 系统图像列表
BOOL SetSystemImageList( CListCtrl & list ){ HIMAGELIST himlSmall;HIMAGELIST himlLarge;SHFILEINFO sfi;char cSysDir[MAX_PATH];CString strBuf;
memset(cSysDir, 0, MAX_PATH);
GetWindowsDirectory(cSysDir, MAX_PATH);strBuf = cSysDir ;
// SHGetFileInfo:// If uFlags contains SHGFI_SYSICONINDEX, the return value is a handle to // an image list that contains the large icon images. // If SHGFI_SMALLICON is included with SHGFI_SYSICONINDEX, the return value // is the handle to an image list that contains the small icon images.//
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(list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_SMALL, (LPARAM)himlSmall); ::SendMessage(list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_NORMAL, (LPARAM)himlLarge);}
return TRUE;}步骤2: 给列表添加指定的文件, 同时获得该文件的的图标索引, 给 list 添加图标
int GetIconIndex(LPCTSTR lpszPath, BOOL bIsDir, BOOL bSelected) ; // 向前声明void AddFiles(CListCtrl & list, LPCTSTR lpszFileName, BOOL bAddToDocument){int nIcon = GetIconIndex(lpszFileName, FALSE, TRUE);CString strSize;CFileFind filefind;
// get file sizeif ( filefind.FindFile(lpszFileName)){ filefind.FindNextFile(); strSize.Format("%d", filefind.GetLength());}else strSize = "0";
// split path and filenameCString strFileName = lpszFileName;CString strPath;
int nPos = strFileName.ReverseFind('\\');if (nPos != -1){ strPath = strFileName.Left(nPos); strFileName = strFileName.Mid(nPos + 1);}
// insert to listint nItem = list.GetItemCount();
//list.InsertItem(nItem, strFileName, nIcon);//list.SetItemText(nItem, 1, strSize);//// 此处可以根据实际需要修改代码//}
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19. 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();
20. 清除 ListCtrl 以重新初始化:
// 删除所有行m_ctrllist.DeleteAllItems() ; // 删除所有列int iColCount = m_ctrllist.GetHeaderCtrl()->GetItemCount() ;
// 方法 1// 原理: 删除第一列后, 其他列向前移动while( m_ctrllist.DeleteColumn(0) ) ; // 方法 2for (int i=0; i < iColCount ; i++){ m_ctrllist.DeleteColumn(0); }
// 方法 3for (int i=iColCount-1; i >= 0; i-- ){ m_ctrllist.DeleteColumn( i );
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/Bilter/archive/2010/07/29/5773415.aspx
功能强大的CListCtrl:做网络笔记,还需添加修改CListCtrl改变行的颜色,列的颜色,字体颜色等.
资源属性里面有个sort设置排序的,如果不小心选了Ascending,那么你insertItem的顺序就就1,10,11,12,13,14,15,16,17,18,19,2,20,21....所以要注意.首先使用下面的语句设置CListCtrl的style:DWORD SetExtendedStyle( DWORD dwNewStyle );其中LVS_EX_CHECKBOXES 表示添加CheckBoxLVS_EX_FULLROWSELECT 表示选择整行LVS_EX_GRIDLINES 表示添加表格线
如果设置了LVS_EX_CHECKBOXES属性,则可以用BOOL GetCheck( int nItem ) const;来得到某一行是否Checked。
可以先用下面的语句来删除以前的东西:for(int k=2;k>=0;k--) //注意要从后往前删,否则出错m_ListCtrl.DeleteColumn(k);m_ListCtrl.DeleteAllItems();
用下面的语句新建列:m_ListCtrl.InsertColumn(0,_T("文件名"),LVCFMT_IMAGE|LVCFMT_LEFT);m_ListCtrl.InsertColumn(1,_T("仪器类别"));m_ListCtrl.InsertColumn(2,_T("项目类别"));
其中LVCFMT_IMAGE表示可以在第一列加入图标。如果不要图标可以删去。
然后设置列宽:for(j=0;j<3;j++)m_ListCtrl.SetColumnWidth(j ,100);
以下为列表加入图标,如果不需要图标,可以跳过这一步。注意只在第一次加入,如果多次加入会出错!先在头文件中加入声明:CImageList m_ImageList;这是必要的,如果在cpp的某个函数中加入由于生命期结束,CImageList自动释放,则效果是列表中看不到图标,只看到一个白方块。下面生成CImageList,并将其绑定到CListCtrl中,这是CImageList中还没有图标,只是一个容器:static int flag=2;if(flag==2){//只调用一次SetImageList,否则出错m_ImageList.Create(128, 128, ILC_COLORDDB|ILC_MASK, 20, 1); m_ListCtrl.SetImageList(&m_ImageList,LVSIL_SMALL);}flag=(flag+1)%2;如果CListCtrl已经用过,曾经加过图标进去,这时就要删除上次放进m_ImageList中的Imagefor(int kk=0;kk<m_ImageList.GetImageCount();kk++)m_ImageList.Remove(k);
下面介绍如何向CListCtrl里面加入行,并同时为每一行动态加入图标:假设m_listRowCount为要加入的行数。CBitmap* bitmap;bitmap=new CBitmap[m_list1rowCount];HBITMAP hbitmap;
for(int i = 0; i < m_listRowCount; i++){//为每一行插入相应的缩略图CFile f;CFileException e; if( !f.Open(m_FileName, CFile::modeRead, &e )){ //m_FileName为bmp文件名,由你来定 hbitmap = (HBITMAP)LoadImage(NULL,path+"blank.bmp",IMAGE_BITMAP,0,0, LR_CREATEDIBSECTION|LR_DEFAULTSIZE|LR_LOADFROMFILE);}else{ f.Close(); hbitmap = (HBITMAP)LoadImage(NULL,bmpFile,IMAGE_BITMAP,0,0, LR_CREATEDIBSECTION|LR_DEFAULTSIZE|LR_LOADFROMFILE);}bitmap[i].Attach(hbitmap);m_ImageList.Add(&bitmap[i], RGB(0, 128, 128));
//插入行m_ListCtrl.InsertItem(i,m_FileName,i);m_ListCtrl.SetItemText(i,1,type);m_ListCtrl.SetItemText(i,2,m_Path);}
//记得删除已经没用的临时文件if(m_list1rowCount!=0)delete[] bitmap;
2。如果是ICON类型的CListCtrl,则要做一点点改动:把绑定图标集的代码由SetImageList(&m_ImageList,LVSIL_SMALL);改为SetImageList(&m_ImageList,LVSIL_NORMAL);
插入行时只用InsertItem(i,mainSet.m_FileName,i);不用SetItemText(i,1,type);之类的代码。
1. ListCtrl 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<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); } }
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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<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 } }
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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);
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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; 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. listctrl的 subitem 添加图标
注意: 首先要用 InsertItem() 插入一行的第一列, 然后才能用 SetItem 设置其他项 m_list.SetExtendedStyle(LVS_EX_SUBITEMIMAGES); m_userlist.SetItem(..);
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18. 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,自己试用并改正过, share
步骤1: 设置 list 的图像列表为 系统图像列表
BOOL SetSystemImageList( CListCtrl & list ){ HIMAGELIST himlSmall;HIMAGELIST himlLarge;SHFILEINFO sfi;char cSysDir[MAX_PATH];CString strBuf;
memset(cSysDir, 0, MAX_PATH);
GetWindowsDirectory(cSysDir, MAX_PATH);strBuf = cSysDir ;
// SHGetFileInfo:// If uFlags contains SHGFI_SYSICONINDEX, the return value is a handle to // an image list that contains the large icon images. // If SHGFI_SMALLICON is included with SHGFI_SYSICONINDEX, the return value // is the handle to an image list that contains the small icon images.//
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(list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_SMALL, (LPARAM)himlSmall); ::SendMessage(list.m_hWnd, LVM_SETIMAGELIST, (WPARAM)LVSIL_NORMAL, (LPARAM)himlLarge);}
return TRUE;}步骤2: 给列表添加指定的文件, 同时获得该文件的的图标索引, 给 list 添加图标
int GetIconIndex(LPCTSTR lpszPath, BOOL bIsDir, BOOL bSelected) ; // 向前声明void AddFiles(CListCtrl & list, LPCTSTR lpszFileName, BOOL bAddToDocument){int nIcon = GetIconIndex(lpszFileName, FALSE, TRUE);CString strSize;CFileFind filefind;
// get file sizeif ( filefind.FindFile(lpszFileName)){ filefind.FindNextFile(); strSize.Format("%d", filefind.GetLength());}else strSize = "0";
// split path and filenameCString strFileName = lpszFileName;CString strPath;
int nPos = strFileName.ReverseFind('\\');if (nPos != -1){ strPath = strFileName.Left(nPos); strFileName = strFileName.Mid(nPos + 1);}
// insert to listint nItem = list.GetItemCount();
//list.InsertItem(nItem, strFileName, nIcon);//list.SetItemText(nItem, 1, strSize);//// 此处可以根据实际需要修改代码//}
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19. 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();
20. 清除 ListCtrl 以重新初始化:
// 删除所有行m_ctrllist.DeleteAllItems() ; // 删除所有列int iColCount = m_ctrllist.GetHeaderCtrl()->GetItemCount() ;
// 方法 1// 原理: 删除第一列后, 其他列向前移动while( m_ctrllist.DeleteColumn(0) ) ; // 方法 2for (int i=0; i < iColCount ; i++){ m_ctrllist.DeleteColumn(0); }
// 方法 3for (int i=iColCount-1; i >= 0; i-- ){ m_ctrllist.DeleteColumn( i );
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