currently i’m doing this:
string cellValue = sheet.get_Range("A12", _missing).Value2.ToString();
this works but i really need to select a cell by row and column index.
i get a null exception when i try
string cellValue = ((Range)sheet.Cells[row, column]).Value2.ToString();
Where does the
ArgumentNullException occur? Try separating out your code like this and step through it:
object rangeObject = sheet.Cells[row, column]; Range range = (Range)rangeObject; object rangeValue = range.Value2; string cellValue = rangeValue.ToString();
This will show you where the null object is.
I had the same issue. The nullref would happen when the cell I was reading was empty.
string foo = (((Range) ActiveWorksheet.Cells[row, column]).Value2 != null ? ((Range) ActiveWorksheet.Cells[row, column]).Value2.ToString() : "Coalesce some false string here...");
Notice that you have to check for null before you attempt to transform or cast the value.