Commented Unassigned: Array Formula crashes ClosedXml on Save [8934]

August 7, 2013, 8:27 am

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Hi there!

First, thank you for your hard work and ongoing support! After fiddling with OOXML myself "manually" for about a month and compiling numerous helper functions I really, really appreciate your effort ;-)

Now I've stumbled upon a rather complex array formula that works fine in Excel 2010 but throws a null reference exception on save() using ClosedXml.

In German this array formula looks like
```
=TEILERGEBNIS(9;INDIREKT("B02:B"&MAX(WENN(ISTLEER(#BEZUG!:B);"";ZEILE(B:B)))))
```
and results in
```
System.NullReferenceException: Object reference not set to an instance of an object.
at ClosedXML.Excel.XLWorkbook.GenerateWorksheetPartContent(WorksheetPart worksheetPart, XLWorksheet xlWorksheet, SaveContext context) in ...\ClosedXML\Excel\XLWorkbook_Save.cs:line 4096
at ClosedXML.Excel.XLWorkbook.CreateParts(SpreadsheetDocument document) in ...\ClosedXML\ClosedXML\Excel\XLWorkbook_Save.cs:line 189
at ClosedXML.Excel.XLWorkbook.CreatePackage(String filePath) in ...\ClosedXML\Excel\XLWorkbook_Save.cs:line 91
at ClosedXML.Excel.XLWorkbook.Save() in ...\ClosedXML\Excel\XLWorkbook.cs:line 413
```
upon save().

Thanks for your help and best regards,
Thomas
Comments: ** Comment from web user: MDeLeon **

Thanks for the feedback. I'll think about your recommendations. Regarding the formula, I'll get Office 2010 and check it out because I seriously doubt that is a valid formula in Excel 2010 (or any other version for that matter).

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New Comment on "How do I deliver an Excel file in ASP.NET?"

August 7, 2013, 9:43 am

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≪ Previous: Commented Unassigned: Array Formula crashes ClosedXml on Save [8934]

This probably isn't the "right" way to do it, but for the same result in an ASP.NET Web API, the following worked for me: public class WorkbookController : ApiController { public HttpResponseMessage Get() { // Create the workbook var workbook = new XLWorkbook(); workbook.Worksheets.Add("Sample").Cell(1, 1).SetValue("Hello World"); // Prepare the response HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK); var memoryStream = new MemoryStream(); // If I put this in a 'using' construct, I never get the response back in a browser. workbook.SaveAs(memoryStream); memoryStream.Seek(0, SeekOrigin.Begin); // Seem to have to manually rewind stream before applying it to the content. response.Content = new StreamContent(memoryStream); response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") { FileName = "HelloWorld.xlsx" }; return response; } }

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New Post: Input string was not in a correct format when reading cell value

August 7, 2013, 9:52 am

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Has anyone found a work around for this?

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New Post: Input string was not in a correct format when reading cell value

August 7, 2013, 10:07 am

≫ Next: New Post: Generate Excel and Add As Email Attachment

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I'll work on it. It shouldn't be hard to fix... (famous last words I know)

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New Post: Generate Excel and Add As Email Attachment

August 7, 2013, 10:42 am

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I had a similar problem. Solved with highlighted line of code before creating the attachment from memory stream.

using (MemoryStream memoryStream = new MemoryStream())
{
    MailMessage mailMessage = new MailMessage(smtpFrom, smtpTo);

    mailMessage.Subject = subject;
    mailMessage.Body = body;

    __memoryStream.Seek(0, SeekOrigin.Begin);__
    Attachment attachment = new Attachment(memoryStream, "<filename>.xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
    mailMessage.Attachments.Add(attachment);

    SmtpClient smtpClient = new SmtpClient(smtpServer);
    smtpClient.Send(mailMessage);

    memoryStream.Close();
}

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New Post: Table Styles

August 7, 2013, 11:46 am

≫ Next: Source code checked in, #79734

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There needs to be a none item in the enum. ActiveSheet.ListObjects("Table2").TableStyle = "" Is what is recorded when I record a macro.

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Source code checked in, #79734

August 7, 2013, 6:41 pm

≫ Next: New Post: Table Styles

≪ Previous: New Post: Table Styles

Added XLTableTheme.None

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New Post: Table Styles

August 7, 2013, 6:42 pm

≫ Next: Source code checked in, #79736

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I didn't even know that was an option. Pick up the latest check-in.

↧

Source code checked in, #79736

August 7, 2013, 7:41 pm

≫ Next: New Post: Input string was not in a correct format when reading cell value

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Formulas now treat strings as zero

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New Post: Input string was not in a correct format when reading cell value

August 7, 2013, 7:41 pm

≫ Next: Commented Unassigned: Evaluating Formulas with Round() [8877]

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Pick up the latest check-in.

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Commented Unassigned: Evaluating Formulas with Round() [8877]

August 7, 2013, 7:52 pm

≫ Next: Closed Unassigned: Evaluating Formulas with Round() [8877]

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Hi,

ClosedXML doesn't evaluate formulas with the Round() function.

PS: Is their a list of supported / not supported functions?

Greetings,
Raidri
Comments: ** Comment from web user: MDeLeon **

The Round function works just fine:

var wb = new XLWorkbook();
var ws = wb.AddWorksheet("Sheet1");
var value = ws.FirstCell().SetFormulaA1("=ROUND(1.239, 2)").GetDouble();

From the downloads page: (I'll add it to the documentation)

This is a list of the included formulas:

All math and trigonometric formulas.
All text formulas except BAHTTEXT, JIS, and PHONETIC.
All logical formulas.
All date and time formulas.
Many statistical formulas.

↧

Closed Unassigned: Evaluating Formulas with Round() [8877]

August 7, 2013, 7:52 pm

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≪ Previous: Commented Unassigned: Evaluating Formulas with Round() [8877]

Hi,

ClosedXML doesn't evaluate formulas with the Round() function.

PS: Is their a list of supported / not supported functions?

Greetings,
Raidri
Comments: Nothing to do.

↧

New Post: Table Styles

August 7, 2013, 8:18 pm

≫ Next: Commented Unassigned: Array Formula crashes ClosedXml on Save [8934]

≪ Previous: Closed Unassigned: Evaluating Formulas with Round() [8877]

Thanks. http://imgur.com/ZilbeRy

↧

Commented Unassigned: Array Formula crashes ClosedXml on Save [8934]

August 7, 2013, 8:22 pm

≫ Next: New Post: NamedRanges.Contains pick other NamedRange if one doesnt exist

≪ Previous: New Post: Table Styles

I took a second look and the formula does work even in Excel 2007. I'll see what I can do...

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New Post: NamedRanges.Contains pick other NamedRange if one doesnt exist

August 8, 2013, 2:21 am

≫ Next: New Post: NamedRanges.Contains pick other NamedRange if one doesnt exist

≪ Previous: Commented Unassigned: Array Formula crashes ClosedXml on Save [8934]

Thanks MDeLeon but the codes you've provided are still throwing following exceptions

var range1 = ws.NamedRange("Bad");
ex = {"The given key was not present in the dictionary."}

var contains1 = ws.NamedRanges.Contains("Bad");
ex = {"Index was outside the bounds of the array."}

At the moment I've done a work around by getting all NamedRanges in a string collection then doing a Contains

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New Post: NamedRanges.Contains pick other NamedRange if one doesnt exist

August 8, 2013, 6:11 am

≫ Next: New Post: IXCell.DataType isn't set DateTime type when the cell contains VLOOKUP formula

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You have to get the source code and compile it.

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New Post: IXCell.DataType isn't set DateTime type when the cell contains VLOOKUP formula

August 8, 2013, 6:56 am

≫ Next: New Post: IXCell.DataType isn't set DateTime type when the cell contains VLOOKUP formula

≪ Previous: New Post: NamedRanges.Contains pick other NamedRange if one doesnt exist

Into a worksheet, a column has VLOOKUP formula to obtain a date from another sheet in the same workbook. But when checking the IXCell.DataType property, I get the Text data type instead of Date data type.

Thanks in advanced

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