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Exporting excelsheet in DataTable gives error

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#1

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Hi Team,


We are using Aspose excel licensed latest version 7.0.4.0.

As per application requirement we have to export excel sheet as DataTable. for that we are using aspose method
DataTable dtTable = individualSheet.Cells.ExportDataTable(0, 0, (individualSheet.Cells.MaxRow + 1), (individualSheet.Cells.MaxColumn + 1), true);

this code is working fine with version 7.0.1.0 and export data to datatable.

but when we try same code for version 7.0.4.0 it gives error "Input string was not in a correct format. Couldn’t store <#VALUE!> in Column3 Column. Expected type is Double.".


I tried it with another method for version 7.0.4.0

DataTable dtTable = individualSheet.Cells.ExportDataTableAsString(0, 0, (individualSheet.Cells.MaxRow + 1), (individualSheet.Cells.MaxColumn + 1), true);

it doesn’t give error but show some column data as '#VALUE!' where we use formula SUM() to calculate sum.


Please try to figure out the problem and provide me the solution ASAP.


Thanks,
Samanvay



#2

Hi,


Could you try to call:
Workbook.CalculateFormula() before exporting data to fill the DataTable. It should work fine.

If you still find any issue, kindly give us your template Excel file from which you are exporting data to fill the data table, we will check it soon.

Thank you.
#3

Yes we are using Workbook.CalculateFormula() before exporting data to fill the DataTable. but after that it is giving error.



please find the attached TestTemplate.xlsx.


In Last row of all sheets we are using the SUM() method and it gives error for that when Exporting to DataTable.





Thanks,

Samanvay






#4

Hi,


I could not find the issue, I used Aspose.Cells for .NET (Latest Version)
Here is my sample code using your template file. Also, find attached the output file here. In the output file, see the Sheet10 , all the data is exported fine.

Sample code:
Workbook workbook = new Workbook(@"e:\test2\TestTemplate.xlsx");
Worksheet worksheet = workbook.Worksheets["Sheet1"];
DataTable dataTable = new DataTable();
dataTable = worksheet.Cells.ExportDataTableAsString(0, 0, worksheet.Cells.MaxRow + 1, worksheet.Cells.MaxColumn + 1, true);
int i = workbook.Worksheets.Add();
workbook.Worksheets[i].Cells.ImportDataTable(dataTable, true,"A1");
workbook.Save("e:\\test2\\out1_ExampleData.xlsx");

Please make sure that you are using latest version v7.0.4. If you still find the issue, kindly create a simple console application (you may use my code if possible) with v7.0.4 to show the issue, we will check it soon.

Thank you.
#5

Hi,

i used your code with one change and it gives same error.

Workbook workbook = new Workbook(@“e:\test2\TestTemplate.xlsx”);
workbook.CalculateFormula();

Worksheet worksheet = workbook.Worksheets[“Sheet1”];
DataTable dataTable = new DataTable();

dataTable = worksheet.Cells.ExportDataTableAsString(0, 0,
worksheet.Cells.MaxRow + 1, worksheet.Cells.MaxColumn + 1, true);
int i = workbook.Worksheets.Add();
workbook.Worksheets[i].Cells.ImportDataTable(dataTable, true,“A1”);
workbook.Save(“e:\test2\out1_ExampleData.xlsx”);





please provied the solution for ExportDataTable() method beacuse we have to use same datatype in table as in excelsheet for further calculation

please see the error when i used the ExportDataTable() method




Thanks,
Samanvay




#6

Hi,


Now that is strange, because I still could find any error when adding Workbook.CalculateFormula() to my code. Moreover, please do not add this line if you do not change any data in the workbook.

I requested you kindly create a sample console application with v7.0.4, zip it and post it here to show the issue, we will check it soon.

Thank you.
#7

Hi,

Please find the attachment “ExcelToTable.zip”. in that there are 2 method

1) TableWithDataType();
2) TableAsString();

please run above method one by one.

comment 2nd and run 1st (see the out put).

comment 1st and run 2nd (see the out put).

for 1st method it is giving error. please check it.

for 2st method it is working fine and generate the output but please see the result in “out1_ExampleData.xlsx” it will show “#VALUE!” in sheet 10.




Thnaks,
Samanvay

#8

Hi,


Thanks for the project.

I can find the issue (“Input string was not in correct format…” error) for the first method as you have mentioned if I use Workbook.CalculateFormula() method on the ExportDataTable() as you mentioned. If I skip calling this method, it works fine though.

I have logged a ticket for the issue with an id: CELLSNET-40210. We will look into it soon.

By the way as I suggested, if you do not change any value in the template file, you do not need to use Workbook.CalculateFormula() method. So, you may skip it and it will work fine for your needs.

Thank you.
#9

Hi Amjad,

Thanks for raise the ticket for this issue.

I remove the Workbook.CalculateFormula() from my code but it gives me 0 for all cell values.

Please provide the solution for ExportDataTable() method ASAP.

Thanks,
Samanvay

#10

Hi,


Yes, sure, we are working over the issue, once it is resolved we will let you know here.

Thank you.
#11

Hi,

We have fixed this issue. Please download: Aspose.Cells for .NET (Latest Version)

#12

Thanks alot team… now it is working fine.

Happy Holidays… :slight_smile:


Thanks,
Samanvay

#13

The issues you have found earlier (filed as CELLSNET-40210) have been fixed in this update.

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