ListCtrl & CString::Tokenize

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C++

MFC

Hi, I'm reading data from a text file. and I'm using CString tokenize to detect "\t"
But whenever i run the code, it gives me an Assertion Fail error. Also, after i comment off the tokenize function and use the normal function, I cannot seem to add in text in the 2nd Column onwards. This is how i call the function in Oninit:
"ReadConfigFile();"

void CGraphicPlotter1Dlg::ReadConfigFile()
{
	CString sBuf;
	meStringArray ArrLine;
	int foundAt = ArrLine.Find(searchStr);
	int endAt = ArrLine.Find(searchStr);
	int unitAt;
	int unitEnd;
	int i;
	int imgNbr = 0;

	CString Seperator = _T("\t");
	int Position = 0;
	CString Token;

	ReadFile("New Text Document.txt", ArrLine);
	int dwLength = ArrLine.GetSize();
	searchStr = "UnitY-Name";
	foundAt = ArrLine.Find(searchStr);
			
	if(foundAt != -1 )
	{	
		i = foundAt + 1;
		while( i < dwLength)
			{
				// Get Name of curves
				sBuf=ArrLine.GetAt(i);
				endAt = sBuf.Find("\t");
				resultStr = sBuf.Mid(0,endAt);
				LPSTR curveName = resultStr.GetBuffer(); // Convert from CString to LPSTR

				//Token = sBuf.Tokenize(Seperator, Position);
				//while(!Token.IsEmpty())
				//{
					// Get next token.
					//Token = sBuf.Tokenize(Seperator, Position);
				//} 

				// Get Units of curves
				unitAt = sBuf.Find(" ");
				unitEnd = sBuf.Find("\t",23);
				nextStr = sBuf.Mid(unitEnd,unitAt);

				lvItem.mask = LVIF_IMAGE |  LVIF_TEXT;

				// Insert data into ListCtrl
				lvItem.mask = LVIF_IMAGE |  LVIF_TEXT;
				lvItem.iItem = imgNbr;
				lvItem.iSubItem = 0;
				lvItem.pszText = curveName;
				lvItem.iImage = imgNbr;
				nItem = this->m_listTable.InsertItem(&lvItem);
				this->m_listTable.SetItemText(nItem, 1, nextStr);
				//this->m_listTable.SetItemText(nItem, 2, nextStr);
				//this->m_listTable.SetItemText(nItem, 3, nextStr);
				i++;
				imgNbr++;	
			}
		}
		else
		{
			AfxMessageBox("No Curves Found!", MB_ICONEXCLAMATION);
		}	
}

Any help will be greatly appreciated.