Create创建控件成功后不显示。

void CDlgContactOther::OnBnClickedBtnAddweb()

{

	// TODO: 在此添加控件通知处理程序代码

	m_nControlId++;

	m_nControlCount++;	

	CRect rect;

	int count = m_arrControls.GetSize();

	if(m_nControlCount>5)

	{

		m_vsb_Info.ShowWindow(SW_SHOW);

		m_vsb_Info.SetScrollRange(0,m_nControlCount-5);

		m_vsb_Info.SetScrollPos(m_vsb_Info.GetScrollPos()+1);

		for(int i=0;i<count;i++)

		{

			if(m_arrControls.ElementAt(i) == GetDlgItem(IDC_BTN_ADDWEB)||m_arrControls.ElementAt(i) == GetDlgItem(IDC_BTN_ADDADDR)||m_arrControls.ElementAt(i)==GetDlgItem(IDC_BTN_ADDTOOL))

				continue;

			m_arrControls.ElementAt(i)->GetWindowRect(&rect);

			ScreenToClient(&rect);

			m_arrControls.ElementAt(i)->SetWindowPos(NULL,rect.left,rect.top-32,rect.Width(),rect.Height(),SWP_NOZORDER|SWP_NOSIZE);

			m_arrControls.ElementAt(i)->GetWindowRect(&rect);

			ScreenToClient(&rect);

		}

	}

	m_arrControls.ElementAt(count-1)->GetWindowRect(&rect);// 崩溃处

	ScreenToClient(&rect);



	CWDComboBox* cmb = new CWDComboBox();

	cmb->Create(WS_CHILD|WS_VISIBLE|CBS_DROPDOWNLIST,CRect(35,rect.top+32,35+99,rect.top+32+20),this,m_nControlId++);

	cmb->SetBorderColor(RGB(200,255,255));

	cmb->SetFont(&thePrefs.m_font1);

	cmb->AddString("公司网站");

	cmb->AddString("微博");

	cmb->AddString("博客");

	cmb->AddString("个人主页");

	cmb->SetDroppedWidth(100);

	cmb->MoveWindow(35,rect.top+32,99,rect.top+32);

	cmb->SetCurSel(0);



	CWDEdit* edt = new CWDEdit();

	edt->Create(WS_CHILD|WS_VISIBLE|WS_TABSTOP,CRect(147,rect.top+32,147+277,rect.top+32+20),this,m_nControlId++);

	edt-> ModifyStyleEx(0,   WS_EX_CLIENTEDGE,   SWP_DRAWFRAME);

	edt->SetBorderColor(RGB(200,255,255));

	edt->SetFont(&thePrefs.m_font1);



	m_arrControls.Add(cmb);

	m_arrControls.Add(edt);



	m_arrCmbWeb.Add(cmb);

	m_arrEdtWeb.Add(edt);

	Invalidate(false);

}