How to get a cell count of a column?

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InterfacePtr<ITableTextContainer> tableTextContainer(tableModel, UseDefaultIID()); 

InterfacePtr<ITextModel> textModel(tableTextContainer->QueryTextModel()); 

InterfacePtr<IComposeScanner> composeScanner(textModel, UseDefaultIID());

InterfacePtr<ITextStoryThreadDict> textStoryThreadDict(tableModel, UseDefaultIID()); 

//int32 totalRowsCount = tableModel->GetTotalRows().count;

//int32 totalColsCount = tableModel->GetTotalCols().count;

ITableModel::const_iterator iterTable(tableModel->begin());

ITableModel::const_iterator end(tableModel->end());

while (iterTable != end) {

  GridAddress gridAddress = *iterTable;

  GridSpan gridSpan = tableModel->GetCellSpan(gridAddress);

  GridArea gridArea(gridAddress, gridSpan);

  const GridID gridID = tableModel->GetGridID(gridAddress);

  InterfacePtr<ITextStoryThread> textStoryThread(textStoryThreadDict->QueryThread(gridID));

  if (textStoryThread == nil) {

  iterTable++;

  continue;

  }

  TextIndex threadStart = 0;

  int32 threadLength = -1;

  threadStart = textStoryThread->GetTextStart(&threadLength);

  int32 cellStrLength = threadLength - 1;

  PMString cellStr;

  if (cellStrLength > 0) {

  WideString tempCopy;

  composeScanner->CopyText(threadStart, cellStrLength, &tempCopy);

  cellStr = PMString(tempCopy);

  // remove kTextChar_ZeroSpaceNoBreak (xmltag mark)

  for (int32 i=0; i<cellStrLength; i++) {

  UTF32TextChar uniChar = cellStr.GetWChar(i);

  if (uniChar == kTextChar_ZeroSpaceNoBreak) {

  cellStr.Remove(i);

  cellStrLength--;

  i--;

  }

  }

  }

  //cellStrlength = cellStr.WCharLength();

  PMString infoStr("row:");

  infoStr.AppendNumber(gridAddress.row+1);

  infoStr.Append(", col:");

  infoStr.AppendNumber(gridAddress.col+1);

  infoStr.Append(", rowSpan:");

  infoStr.AppendNumber(gridArea.Height());

  infoStr.Append(", colSpan:");

  infoStr.AppendNumber(gridArea.Width());

  infoStr.Append(", textLength:");

  infoStr.AppendNumber(cellStrLength);

  if (cellStrLength > 0) {

  infoStr.Append(", text:");

  infoStr.Append(cellStr);

  }

  CAlert::InformationAlert(infoStr);

  iterTable++;

}