学习：组合框和列表框

/*
D:\Visual_Studio_repos\MFC\3\
*/
void CMy3Dlg::OnBnClickedButton1()
{
    CString  mString;

    //得到文本框的内容
    GetDlgItemText(IDC_EDIT_1,mString);

    //设置Combo组合框
    mCombo.AddString(mString);

    //默认选中Combo新增的内容
    mCombo.SetCurSel(mCombo.GetCount()-1);

    //默认选中Combo新增的内容
    mList.AddString(mString);
    mList.SetCurSel(mList.GetCount() - 1);
}


void CMy3Dlg::OnBnClickedButton2()
{
    CString mString;
    int nIndex;
    nIndex = mCombo.GetCurSel();
    
    //删除的逻辑操作
    mCombo.DeleteString(nIndex);
    if (nIndex < mCombo.GetCount()) {
        mCombo.SetCurSel(nIndex);
    }
    else {
        mCombo.SetCurSel(nIndex-1);
    }

    mList.DeleteString(nIndex);
    if (nIndex < mList.GetCount()) {
        mList.SetCurSel(nIndex);
    }
    else {
        mList.SetCurSel(nIndex - 1);
    }
}

//实时变化
void CMy3Dlg::OnCbnSelchangeCombo1()
{
    mList.SetCurSel(mCombo.GetCurSel());
}