值得传递！

[lm9764]

BOOL CUserMaintenanceDlg::GetSelectedUser(int *piIndex,User**ppUser)
{
BOOL bSuccess = false;
int iIndex;
if(LB_ERR!=(iIndex = m_lbxUsers.GetCurSel()))
{
*piIndex = iIndex;
m_b=*piIndex;
m_a=m_lbxUsers.GetItemData(iIndex);
*ppUser = (User*)m_lbxUsers.GetItemData(iIndex);
bSuccess = true;
UpdateData(false);
}
return bSuccess;
}


void CUserMaintenanceDlg::OnButton1()
{
// TODO: Add your control notification handler code here
int iCurrIndex;

User *pUser = NULL;
if(GetSelectedUser(&iCurrIndex,&pUser))
{
ASSERT(pUser);
if(pUser)
{
UpdateData();
CString strPrevUserID;
strPrevUserID = m_strUserID;
CString strPrevUserName;
strPrevUserName = m_strUserName;
int iPrevStatus = m_iStatus;
pUser->m_strUserID = m_strUserID;
pUser->m_strUserName = m_strUserName;
pUser->m_iStatus = m_iStatus;
m_d=m_strUserName;
m_e=pUser->m_iStatus;

UpdateData(false);


}
}
else
{
AfxMessageBox("you must first select a user id to save");
}



}
m_strUserID m_strUserName m_iStatus 为三个文本框这三个文本框值为何不能传递给第四文本框m_d???????

请大家帮忙？