PoEdu-Windows班-005 ListView控件的使用方法

本文主要是介绍PoEdu-Windows班-005 ListView控件的使用方法，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

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

      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”

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style中的Show selection always，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("Noitems 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

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);

           LVHITTESTINFOlvinfo;
           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);

           LVHITTESTINFOlvinfo;
           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;
      }

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;
}

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 yourcontrol 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);
           }
           elseif((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);
           }
           elseif((pNMListView->uOldState & LVIS_SELECTED) == 0 &&
           (pNMListView->uNewState & LVIS_SELECTED) == LVIS_SELECTED)
           {
               sTemp.Format("%d got selected",pNMListView->iItem);
           }

           *pResult = 0;
      }

17. 改变选中行的颜色

首先是添加以下消息

ON_NOTIFY( NM_CUSTOMDRAW, IDC_LIST1, OnDrawColorForMyList ) //为改变颜色添加的消息

再添加类成员函数,就OK了:

//改变 m_List 控件单行的颜色
void CSSDTDlg::OnDrawColorForMyList( NMHDR *pNmHdr, LRESULT *pResult )
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>( pNmHdr );

    *pResult = CDRF_DODEFAULT;

if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage )
{
        *pResult = CDRF_NOTIFYITEMDRAW;
}
    else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage )
{
        *pResult = CDRF_NOTIFYSUBITEMDRAW;
}
    else if ( (CDDS_ITEMPREPAINT | CDDS_SUBITEM) == pLVCD->nmcd.dwDrawStage )
{
  COLORREF clrNewTextColor, clrNewBkColor;

  int    nItem = static_cast<int>( pLVCD->nmcd.dwItemSpec );

  //选中行显示字体为红色,否则为黑色
  if(m_item == nItem)  //设置为红色
  {
   clrNewTextColor = RGB( 255, 0, 0 );
  }
  else  //设置为黑色
  {
   clrNewTextColor = RGB( 0, 0, 0 );
  }

  //设置背景色
  if( nItem%2 ==0 )
  {
   clrNewBkColor = RGB( 240, 240, 240 ); //偶数行背景色为灰色
  }
  else
  {
   clrNewBkColor = RGB( 255, 255, 255 ); //奇数行背景色为白色
  }

  pLVCD->clrText = clrNewTextColor;
  pLVCD->clrTextBk = clrNewBkColor;

        *pResult = CDRF_DODEFAULT;
}
}