[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

Excel fails to show formula result after adding formula from C# - Interop - Excel

Posted on 2011-03-17
6
Medium Priority
?
1,607 Views
Last Modified: 2013-12-17
Hi,

I'm using Office 2003 running on XP SP 2, .NET FW 3.5, Visual Studio 2010

I'm positive that I've found a bug in Excel or maybe in Interop.Excel.

Via my Excel objects I'm writing a simple formula ta cell:

                for (int row = numberOfDataRows; row >= 2; row--)
                {
                    xlRow = (Excel.Range)xlSheet.Rows[row];
                    Excel.Range thisCell = (Excel.Range)xlRow.Cells[1, 2];
                    thisCell.Formula = "=MONTH(a" + row.ToString() + ")";

When I look at the result in the Excel file there are #NAME? in all cells where I added the formula to BUT in the FORMULA bar I can see the correct formula.

Now, if I click inside the Formula bar followed by an ENTER -> voila, the value of the cell is evaluated according to the formula. I don't know how-to solve this what I think is a bug so please, anyone here, help needed ASAP!

Best Regards,
0
Comment
Question by:peer754
  • 3
  • 2
6 Comments
 

Author Comment

by:peer754
ID: 35157154
Still no reply???

I tested this further and so far I've found out this much:

Ok if I instead of =MONTH(...) writes e.g. =Q + row.ToString(). All values from column Q shows ok.

Also Ok if I =MAX(...) i.e. it is not the call to an Excel-function that seems to be the issue BUT certain functions as MONTH and also SUM won't work.

Dunno if this info helps but I'm starting to be desperate so ... please!!!
0
 
LVL 33

Expert Comment

by:Todd Gerbert
ID: 35158138
>> Still no reply???

You only posted this question a couple hours ago - patience, grasshopper. ;)

Anyway, I haven't got Excel 2003 to be able to attempt to duplicate your issue.  I can confirm no such problem seems to exist with Excel 2010, using this test code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Excel = Microsoft.Office.Interop.Excel;

namespace ConsoleApplication1
{
	class Program
	{
		static void Main(string[] args)
		{
			Excel.Application excel = new Excel.Application();
			Excel.Workbook workbook = excel.Workbooks.Add();
			Excel.Worksheet xlSheet = workbook.Sheets[1];

			for (int i = 1; i < 13; i++)
				((Excel.Range)xlSheet.Cells[i, 1]).Formula = "=DATE(2011," + i + ",1)";

			for (int row = 12; row > 0; row--)
			{
				Excel.Range xlRow = (Excel.Range)xlSheet.Rows[row];
				Excel.Range thisCell = (Excel.Range)xlRow.Cells[1, 2];
				thisCell.Formula = "=MONTH(A" + row.ToString() + ")";
			}

			excel.Visible = true;
		}
	}
}

Open in new window


Things I might suggest is explicitly calling Excel.Calculate(), and also check your Excel options - make sure Workbook calculation is automatic.

It's probably also worth pointing out that the MONTH() function in Excel expects a serial number, "40544", not a date-string (40544 is how Excel internally represents the date 1/1/2011).
0
 
LVL 4

Expert Comment

by:fromer
ID: 35166269
it can be a language issue...
I am from Turkey, and in the formula bar "=MONTH(40544)" is not valid where "=AY(40544)" is VALID..
0
Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

 
LVL 4

Expert Comment

by:fromer
ID: 35166300
Addition To Previous Note:

"=MONTH(40544)" generates "#AD?",

AD = NAME in turkish...
0
 

Accepted Solution

by:
peer754 earned 0 total points
ID: 35182967
@fromer: Yes you were on the right track, please see below:

My problem is solved thanks to one of the very talented Moderators at MrExcel - Forum. He pointed me to this excellent thread (I copied the suggested solution and everything is working since then)

http://www.dotnetmonster.com/Uwe/Forum.aspx/vs-net-office/72/FormulaLocal-FormulaR1C1Local-not-working

As you can see, my problem is related to the environment configuration within my .NET Framework found under System.Globalization.CultureInfo

For some reason Excel doesn't recognize some of its Function names even though my Excel is an international installation.

 
Best Regards!
0
 

Author Closing Comment

by:peer754
ID: 35221216
Since I was in a hurry (aren't we always) I was forced to get a solution fast, this one worked completely for me.
0

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
Hello there! As a developer I have modified and refactored the unit tests which was written by fellow developers in the past. On the course, I have gone through various misconceptions and technical challenges when it comes to implementation. I would…
Is your OST file inaccessible, Need to transfer OST file from one computer to another? Want to convert OST file to PST? If the answer to any of the above question is yes, then look no further. With the help of Stellar OST to PST Converter, you can e…
The video provides a quick and easy steps to migrate MBOX file to well known Outlook PST and Office 365. Besides this, it also supports and migrates more than 20 email clients of MBOX which include AppleMail, Opera, Thunderbird and SeaMonkey effortl…
Suggested Courses
Course of the Month9 days, 1 hour left to enroll

590 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question