如何在MFC中分离CString

Question

I have a string like this: DialogTitle = IDD_SETTING_DLG in a save file (i have already stored it in an array called m_TextArray ).

Now i want to get the "IDD_SETTING_DLG" part(or at least " IDD_SETTING_DLG" ) and store it in a CString variable. I used the Tokenize method but it didn't work.

Here are my codes:

BOOL CTab1::OnInitDialog()
{
    UpdateData();
    ReadSaveFile();
    SetTabDescription();
    UpdateData(FALSE);
    return TRUE;
}

void CTab1::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    DDX_Text(pDX, IDC_SHOWDES, m_ShowDes);
}

void CTab1::ReadSaveFile()
{
    if (!SaveFile.Open(SFLocation, CFile::modeRead | CFile::shareDenyWrite, &ex))
    {
        ReadSettingFile();
    }
    else
    {
        for (int i = 0; i < 100; i++)
        {
            SaveFile.ReadString(ReadLine);
            m_TextArray[i] = ReadLine.GetString();
        }
    }
}
void CTab1::SetTabDescription() //m_TextArray[2] is where i stored the text
{
    Position = 0;
    Seperator = _T("=");

    m_ShowDes = m_TextArray[2].Tokenize(Seperator, Position);

    while (!m_ShowDes.IsEmpty())
    {
                // get the next token
        m_ShowDes = m_TextArray[2].Tokenize(Seperator, Position);
    }
}

Anyone solution or hint would be very appreciated.

Answer 1

Since you're merely looking for the part of the string that occurs after a token, there's no need to use Tokenize . Just find the position of the token character (your " = ") and get everything after that:

void CTab1::SetTabDescription() //m_TextArray[2] is where i stored the text
{
    CString separator = _T("=");
    CString source = m_TextArray[2];

    // Get position of token...
    int position = source.Find(separator);

    // If token is found...
    if (position > -1 && source.GetLength() > position)
        m_ShowDes = source.Mid(position + 1);  // extract everything after token
}