ListView의  MouseUp   Event에서  방금 Check한 Item을 제외한
모든 item을 Checked=false시키면 됩니다.

void __fastcall TForm1::ListView1MouseUp(TObject *Sender,
      TMouseButton Button, TShiftState Shift, int X, int Y)
{
    TListItem *item=ListView1->GetItemAt(X,Y);
    if(item && item->Checked )
    {
        for(int i=0;i<ListView1->Items->Count;i++)
        {
            TListItem *sItem=ListView1->Items->Item[i];
            if(sItem!=item) sItem->Checked=false;
        }
    }
}
//--------------------------------------------------------------

그럼 즐플...


alex 님이 쓰신 글 :
: I have listview with checkboxes.
: The checkbox suppose to be checked only one item at each time.
: Is it possible?