请教代码的写法，让已经选择的Ch不再出现。比如修改代码使第五个Ch不能选择前边出现过的1，2，3，37。部分代码贴在下边了。
afx_msg LRESULT CMaintenanceHeadDispenserDlg::OnCbxSelchanged(WPARAM wParam, LPARAM lParam)
{
for( int i = 0; i < 5; i++ ) {
if( m_cmbCh[i].m_hWnd == (HWND)lParam )
{
int Cnt = m_cmbCh[i].GetCount();
if( (int)wParam < Cnt && (int)wParam >= 0) {
m_cmbCh[i].SetCurSel( (int)wParam );
int Index = (int)m_cmbCh[i].GetItemData( m_cmbCh[i].GetCurSel() );
map<int, CString>::iterator it = m_mapCh.find( Index );
if( it != m_mapCh.end() ) {
m_edtCh[i].SetString( it->second );
}
break;
}
}
}
return 0;
}

自己顶一下

补充一下代码OnInitDialog
BOOL CMaintenanceHeadDispenserDlg::OnInitDialog()
{
CMaintenanceChildDlg::OnInitDialog();
CRect rc(0, 0, 0, 0);
m_edtDist.Create( NULL, NULL, WS_CHILD|WS_VISIBLE|WS_DISABLED, rc, this, IDC_EDT_MT_HEAD_DISPENSER_DIST );
m_edtDist.SetInputMode( 1 );
m_edtDist.SetInputRange( 999.999, 0.0 );
m_edtDist.EnableRightInputMode( TRUE, 2 );
m_edtOutput.Create(NULL, WS_CHILD|WS_VISIBLE|WS_DISABLED, rc, this, IDC_EDT_MT_HEAD_DISPENSER_OUTPUT);
CDeviceConfigDispenserController* p = CDeviceConfigDispenserController::GetInstance();
SDeviceConfigDispenser d;
p->GetData( d );
m_DispenserChInfoSet.GetChMap(m_mapCh);
for( int i = 0; i < 5; i++ ) {
m_cmbCh[i].ResetContent();
m_cmbCh[i].SetScrollCnt(5);
m_cmbCh[i].SetHitTrace( TRUE );
m_edtCh[i].Create(NULL,NULL,WS_VISIBLE|WS_CHILD|WS_DISABLED,rc,this,IDC_EDT_MT_HEAD_DISPENSER_CH1 + i);
m_edtCh[i].SetLimitTextNum(32);
int itemCnt = 0;
CString strCh;
for( map<int, CString>::iterator it = m_mapCh.begin(); it != m_mapCh.end(); it++ ) {
strCh.Format(_T("%d"), it->first);
m_cmbCh[i].InsertString(itemCnt, strCh);
m_cmbCh[i].SetItemData(itemCnt, it->first);
if( d.nUseCh[i] == it->first ) {
m_cmbCh[i].SetCurSel( itemCnt );
m_edtCh[i].SetString( it->second );
}
itemCnt++;
}
m_rdoCh[i].SetCheck( BST_UNCHECKED );
}

求大神帮忙