C / C++ / MFC

CString Text;
string buf;
ifstream file(FilePath);
BOOL bLineEnd = true;
int i = 0, nRowCount = 1, nColCount = 0;
m_pGrid->SetColumnCount(0);
m_pGrid->SetRowCount(0);
m_pGrid->SetRedraw(FALSE);

getline(file, buf, '\n');
while(!file.eof())
{
    m_pGrid->SetRowCount(nRowCount+1);
    while(bLineEnd)
    {
        bLineEnd = AfxExtractSubString(Text, buf.begin(), i, '\t');
        if(bLineEnd)
        {
            if(nColCount <= i+1) m_pGrid->SetColumnCount((nColCount = i+1)+1);
            m_pGrid->SetItemText(nRowCount, i+1, Text);

        }
        i++;
    }
    i=0;
    bLineEnd = true;
    nRowCount++;
    getline(file, buf, '\n');
}
m_pGrid->SetRedraw(TRUE);