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2009-11-13 11:02:46

  List Control控件技巧总汇
 

 

以下未经说明,listctrl

默认view 风格为report

-------------------------------------------------------------------------------

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      

--------------------------------------------------------------------------------

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

{

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

--------------------------------------------------------------------------------

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;

       }

--------------------------------------------------------------------------------

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 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; 本文出自 51CTO.COM技术博客

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