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
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); } } CString strIns; strIns="delete from tmpStatByGround"; m_pRs.CreateInstance(__uuidof(Recordset)); m_pRs->CursorLocation = adUseClient; m_pRs->Open((LPCTSTR)strIns, vDispatch, adOpenKeyset, adLockOptimistic, adCmdUnknown);
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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 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 = 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 2 for (int i=0; i < iColCount ; i ) { m_ctrllist.DeleteColumn(0); } // 方法 3 for (int i=iColCount-1; i >= 0; i-- ) { m_ctrllist.DeleteColumn( i ); }