Free Support Forum - aspose.com

Calculate ROUND Excel function/formula via Aspose.Cells in .NET

Hi Jan Kok,


Thank you for your feedback and testing. I have attached your comments to the Ticket.

For reference, by logging a Ticket we have assigned this issue to our Development Team. Now, I have elevated the Ticket’s priority and also have requested for the updates on this issue. As soon as we receive any news, we will post it here.

Regards,

Hi Jan Kok,


We have just released Aspose.Cells for .NET v6.0.0.1 as a fix to your mentioned issue in our Formula Engine. Please test your scenario with this latest assembly and let us know of your feedback.

Thank you for your patience.

Hi Barbar Raza,

It's unfortunately not fixed yet.

ROUND(534,185;2) ==> 534,18

but

ROUND(499,185;2) ==> 499,19

I hope you can find what's going wrong with the ROUND-functionality.

Kind regards,

Jan Kok

Hi Jan Kok,


Thank you for your feedback.
I have noticed this inconsistency of results between Excel and Aspose. Therefore, I have re-opened the Ticket associated with this thread and also have logged my comments to it. We will try to fix this problem as soon as possible.

Hi,

These issues are caused by .NET Framework.

1 - The previous two issues are caused by double precision. Please check “Floating-Point Values and Loss of Precision” on the doc: http://msdn.microsoft.com/en-us/library/system.double.aspx

For example : double x = 18750 * 0.6033;

The actual value of x is 11311.874999999998, the display string value(11311.875) is same as x.ToString(“R15”).

If we directly call Math.Round(x,2, MidpointRounding.AwayFromZero), it will return unexpected value. So we have to process double value before call this method.

2 - The latest issue is more strange, please try the following code:

double x = Math.Round(534.185, 2, MidpointRounding.AwayFromZero);

double y = Math.Round(499.185, 2, MidpointRounding.AwayFromZero);

The x value is 534.18, not 534.19.

We will look into it later.

Hi,


We have fixed this issue in Aspose.Cells for .NET v6.0.0.2. Please test your requirement with this latest assembly and let us know of your feedback.

Hi Shakeel,

The first testresults are promising with Aspose.Cells version 6.0.0.2. Are you now using decimals instead of doubles?

We did some testing here and noticed that rounding with decimals works:

Math.Round(534.185m, 2, MidpointRounding.AwayFromZero)
==> 534.19
Math.Round(499.185m, 2, MidpointRounding.AwayFromZero);
==> 499.19

Kind regards,

Jan

Hi,

It’s great to know, results are promising now. However, I am not sure, if decimals or doubles are being used for rounding. I have therefore forwarded your comment to Aspose.Cells development team. We will update you asap.

Hi Jan,

You are right.

we used decimals instead of doubles if the double value less then decimal.MaxValue.

Hi Shakeel,

It's getting better, but unfortunately I found still a rounding problem. The value 0.415 is after rounding 0.41 instead of 0.42. This happens in one of our excel-sheets. I have tested this with version 6.0.0.0 and 6.0.0.2 of Aspose.Cells. The problem happens in version 6.0.0.2.

For reproduction you can use the excel-file attached and code below. What you see is that K32 (see variable valueK32) contains the number 0.410 instead of 0.420.

   	    FileStream stream = File.Open(@"E:\rekenschemaGVW_2010v1_0310.xlsx", FileMode.Open);
        <span style="color: rgb(43, 145, 175);">Workbook</span> workbook = <span style="color: blue;">new</span> <span style="color: rgb(43, 145, 175);">Workbook</span>(stream);

#region
Worksheet invoerWorksheet = workbook.Worksheets[“invoer”];
invoerWorksheet.Cells[“B2”].PutValue(20100101);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B7"</span>].PutValue(1989);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B8"</span>].PutValue(1989);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B9"</span>].PutValue(1989);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B10"</span>].PutValue(1989);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B17"</span>].PutValue(1825);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B19"</span>].PutValue(1825);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B21"</span>].PutValue(<span style="color: rgb(163, 21, 21);">"m2"</span>);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B22"</span>].PutValue(1087);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B23"</span>].PutValue(19);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B25"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B26"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B27"</span>].PutValue(-25);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B28"</span>].PutValue(<span style="color: rgb(163, 21, 21);">"staal"</span>);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B29"</span>].PutValue(50);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B30"</span>].PutValue(30);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B31"</span>].PutValue(20);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B32"</span>].PutValue(27);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B33"</span>].PutValue(22);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B34"</span>].PutValue(17);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B35"</span>].PutValue(47);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B36"</span>].PutValue(27);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B37"</span>].PutValue(17);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B38"</span>].PutValue(27);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B39"</span>].PutValue(7);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B40"</span>].PutValue(5);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B41"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B42"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B43"</span>].PutValue(1);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B44"</span>].PutValue(543.5);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B45"</span>].PutValue(326.1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B46"</span>].PutValue(217.4);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B48"</span>].PutValue(3000);

        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B50"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B51"</span>].PutValue(1);
        invoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B52"</span>].PutValue(1);

        workbook.CalculateFormula();

        <span style="color: rgb(43, 145, 175);">Worksheet</span> uitvoerWorksheet = workbook.Worksheets[<span style="color: rgb(163, 21, 21);">"uitvoer"</span>];
        <span style="color: blue;">string</span> valueB23 = uitvoerWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"B23"</span>].StringValue;

        <span style="color: rgb(43, 145, 175);">Worksheet</span> rekenbladWorksheet = workbook.Worksheets[<span style="color: rgb(163, 21, 21);">"rekenblad"</span>];
        <span style="color: blue;">string</span> valueT43 = rekenbladWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"T43"</span>].StringValue;
        <span style="color: blue;">string</span> valueS43 = rekenbladWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"S43"</span>].StringValue;
        <span style="color: blue;">string</span> valueK32 = rekenbladWorksheet.Cells[<span style="color: rgb(163, 21, 21);">"K32"</span>].StringValue;

#endregion

Please use the other reproduction tests in this thread for testing the other cases I submitted when fixing this problem.

Kind regards,

Jan Kok

Hi,

Please post/attach your template file here that is used in the code segment, so that we can check your issue soon.

Thank you.

Hi Amjad Sahi,

Thanks. I just attached the file to my post (316142).

Kind regards,

Jan Kok

Hi Jan Kok,


It works the same as MS Excel calculates. I used your code with your template file and saved the file(attached). I opened the generated file into MS Excel 2007 and re-calculate the formulas the “K32” cell of “rekenblad” worksheet has 0.410 value which is same as Aspose.Cells calculates.

Thank you.

Hello Amjad Sahi,

Which version are you using? It works with version 6.0.0.0, but not with version 6.0.0.2 (see post 312713) which resolves a rounding issues from post 312149

Kind regards,

Jan Kok

Hi,

Please also test your issue with the current latest version and let us know your feedback. If some functionality is broken, we will fix it asap.

Download:
Aspose.Cells
for .NET v6.0.0.4

Hi,

I tested it with version 6.0.0.4. Same result as version 6.0.0.2.

Version 6.0.0.0 does work in this situation the same as Excel.

Kind regards,

Jan Kok

The issues you have found earlier (filed as 28399) have been fixed in this update.


This message was posted using Notification2Forum from Downloads module by aspose.notifier.

Hi Shakeel,

Do you have any idea what causes the rounding differences yet?

Kind regards,

Jan Kok

Hi,

I have forwarded your question to team and we will update you asap.

Will you please try the latest version though to see if it works fine now? Please download:
Aspose.Cells
for .NET v6.0.1.6

Hi,

Did you find any problem?

If yes, please send your sample project to us, we will check it soon.