Question

It is working fine for me to read excel 2007 using LinQ and openXML:

IEnumerable<String> textValues =
                                    from cell in row.Descendants<Cell>()
                                    where cell.CellValue != null
                                    select
                                        (cell.DataType != null
                                        && cell.DataType.HasValue
                                        && cell.DataType == CellValues.SharedString
                                        ? sharedStrings.ChildElements[
                                        int.Parse(cell.CellValue.InnerText)].InnerText
                                        : cell.CellValue.InnerText)
                                    ;

However, if one of my cells are null (blank). Then they are excluded in the textValues. How can I change the query in order to select all cells included blank values, I already tried this query:

from cell in row.Descendants<Cell>()
select cell.CellValue.ToString();

but I got this error:

Object reference not set to an instance of an object.

How should the select query to be?

Thanks in advance.

Answer 1

Try:

from cell in row.Descendants<Cell>()
select Convert.ToString(cell.CellValue);

cell.CellValue is null and you get the exception when calling ToString() on it.