MFC中listctrl的使用

MFC中listCtrl的使用

前一阵子做MFC项目用到了listCtrl控件，今天刚好有空，整理了一下。废话不多说，看代码。
右键菜单：

/*右键菜单*/
void CStudentMngDlg::OnNMRClickStudentList(NMHDR *pNMHDR, LRESULT *pResult)
{
    LPNMITEMACTIVATE pNMItemActivate = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);
if (pNMItemActivate->iItem != -1)
    {
        DWORD dwPos = GetMessagePos();
        CPoint point(LOWORD(dwPos), HIWORD(dwPos));

        CMenu menu;
        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;
}

/*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*/
void CStudentMngDlg::OnLvnItemchangedStudentList(NMHDR *pNMHDR, LRESULT *pResult)
{
    LPNMLISTVIEW pNMListView = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
// TODO: 在此添加控件通知处理程序代码
    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;
}

/*获得listctrl中选中单行的Item信息*/
void CStudentMngDlg::OnNMClickStudentList(NMHDR *pNMHDR, LRESULT *pResult)
{
    LPNMITEMACTIVATE pNMItemActivate = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);
    POSITION pos = m_ctrlStudentList.GetFirstSelectedItemPosition();
if (pos != NULL)
    {
int Item = m_ctrlStudentList.GetNextSelectedItem(pos);
            CString Sid = m_ctrlStudentList.GetItemText(Item, 1);
            CString Sname = m_ctrlStudentList.GetItemText(Item, 2);
            MSid = Sid;
            MSname = Sname;
else return;
    }
    *pResult = 0;
}

/*右键删除一个*/
void CStudentMngDlg::DelOneStudent()
{
    UpdateData(TRUE);
if (MSid.IsEmpty()) return;               // 图书ISBN号
if (MessageBox("确定要删除学生信息？", "提示",
        MB_ICONQUESTION | MB_YESNO) != IDYES)            // 确认提示
return;

    try
    {
        CString strSQL;
        _RecordsetPtr pRecordset("ADODB.Recordset");
        strSQL.Format("SELECT * FROM student WHERE sid='%s'", MSid);
        pRecordset->Open((_bstr_t)strSQL, _variant_t((IDispatch*)m_pConnection, true),
            adOpenDynamic, adLockOptimistic, adCmdText); // 打开记录集

if (!pRecordset->BOF) pRecordset->MoveFirst();
if (pRecordset->_EOF) return;                  // 不存在该记录
        pRecordset->Delete(adAffectCurrent);           // 删除记录
        pRecordset->Update();                          // 更新数据库信息
        pRecordset->Close();                           // 关闭记录集
        AfxMessageBox("删除学生信息成功。");
        OnBnClickedQueryStudent();
    }
    catch (_com_error &e)
    {
        AfxMessageBox(e.Description());
return;
    }
}

/*删除checkbox选中项，即就是批量删除*/
void CStudentMngDlg::DelMoreStudent()
{
if (MessageBox("确定要批量删除学生信息？", "提示",
        MB_ICONQUESTION | MB_YESNO) != IDYES)            // 确认提示
return;
    m_ctrlStudentList.SetExtendedStyle(LVS_EX_CHECKBOXES);
    CString DMSid[500];
for (int i = 0; i < 500; i++)
    {
        DMSid[i] = "0";
    }
    CString Sid;
    CString str;
for (int i = 0; i<m_ctrlStudentList.GetItemCount(); i++)
    {
if (m_ctrlStudentList.GetItemState(i, LVIS_SELECTED) == LVIS_SELECTED || m_ctrlStudentList.GetCheck(i))
        {
             Sid = m_ctrlStudentList.GetItemText(i, 1);
            DMSid[i]=Sid;
        }
    }
for (int i = 0; i < m_ctrlStudentList.GetItemCount(); i++)
    {   
if (DMSid[i]!="0")
        {
try
            {
                CString strSQL;
                _RecordsetPtr pRecordset("ADODB.Recordset");
                strSQL.Format("SELECT * FROM student WHERE sid='%s'", DMSid[i]);
                pRecordset->Open((_bstr_t)strSQL, _variant_t((IDispatch*)m_pConnection, true),
                    adOpenDynamic, adLockOptimistic, adCmdText); // 打开记录集

if (!pRecordset->BOF) pRecordset->MoveFirst();
if (pRecordset->_EOF) return;                  // 不存在该记录
                pRecordset->Delete(adAffectCurrent);           // 删除记录
                pRecordset->Update();                          // 更新数据库信息
                pRecordset->Close();                           // 关闭记录集

            }
catch (_com_error &e)
            {
                AfxMessageBox(e.Description());
return;
            }
        }
    }
    AfxMessageBox("批量删除学生信息成功。");
    OnBnClickedQueryStudent();

}

ps：我这里是用CString DMSid[500]的字符串数组存取checkbox选中行的指定列信息，其实也可以用CStringArray类。