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CONCAT not working.

See original GitHub issue

Error

NPOI.SS.Formula.Eval.NotImplementedFunctionException: '_xlfn.CONCAT'
at NPOI.SS.Formula.UserDefinedFunction.Evaluate(ValueEval[] args, OperationEvaluationContext ec) in npoi\main\SS\Formula\UserDefinedFunction.cs:line 41

Formula

=CONCAT(TaxYearInformation.Person.FirstName,TaxYearInformation.Person.LastName)

Code

            IWorkbook workbook;
            var formFilePath = "FormRR31.xlsx";
            using (FileStream file = new FileStream(formFilePath, FileMode.Open, FileAccess.Read))
            {
                workbook = new XSSFWorkbook(file);
                workbook.MissingCellPolicy = MissingCellPolicy.RETURN_NULL_AND_BLANK;
            }
                      
            XSSFFormulaEvaluator formula = new XSSFFormulaEvaluator(workbook);
            formula.EvaluateAll();

FormRR31.xlsx

Issue Analytics

State:
Created 4 months ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

tonyquscommented, Jun 2, 2023

https://techcommunity.microsoft.com/t5/excel/concat-function-not-woking-in-excel-version-1903/m-p/394266

Please resave the file with a Excel version supports CONCAT

0reactions

crippledfaithcommented, Jun 2, 2023

Thanks, that post is from 2019, I am using 2304, Fat Client, the issue is stll there.

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