Call GetSheetName can not get correct sheetname

[virteman]

Description

GetSheetName can not get correct sheet name just return empty string

Steps to reproduce the issue:

1. my xlsx file's first sheet named "basic". so I call GetSheetIndex("basic") get return value is 15
2. call GetSheetName(15) return value is "" (empty string)

Describe the results you received:
I get an empty string as sheetname

Describe the results you expected:
I expect the return string should be "basic"

Output of go version:

go version go1.11 linux/amd64

Excelize version or commit ID:

eef232f09ecd41b1f8fc199906ce0be64865802e

Environment details (OS, Microsoft Excel™ version, physical, etc.):

Ubuntu 18.04, wps 2019( can open and eidt excel 2007 xlsx file), thinkpad x1 carbon

[xuri]

Hi @virteman, thanks for your feedback. Could you provide testing file attachment?

[mlh758]

This is likely related to the changes I made here since the old method of using SheetID was causing the bug in #457

It looks like we need to update GetSheetIndex to actually return the index rather than the SheetID since SheetID isn't a reliable index.

[mariaefi29]

Dear developers,

Do you have any updates on the issue?

I have just moved to your package from another xlsx parser and when started testing on real data, it turned out it doesn't work for a lot of files.

For instance, I have a file with the only one sheet. I would like to get that sheet and I use file.GetSheetName(1), assuming that the sheet's name will return to me. Unfortunately, it returns an empty string. I dig deeper and I realised that the only one sheet I have in that file has index 2 (it's SheetID equals 2 Так выглядит xlsxWorkbook : Sheets:{Sheet:[{Name:ThirdPartHotelst1.xlsx SheetID:2 ID:rId1 State:}]}). That's weird. As you said, for some reason it seems that SheetID isn't reliable index, but it has 'rId1' real id.

Could you please clarify that and/or give us some ETA on the fix? I used the latest version v2.1.0.

You can get the file here (I filled it up with the fake data).
file to download

We would be grateful you could look into that.

PS. Do you also know why I don't see the commit mentioned above in a released version?

[xuri]

Hi @mariaefi29, thanks for your feedback, the ID returned by GetSheetMap doesn't represent the order of the worksheet in the workbook. It just a reliable identifier, which can be used to set the active worksheet. Indeed, we couldn't get the order of worksheet in Excelize 2.1.0 currently, I plan to add a new API named GetSheetList in the next version to solve this issue.

[mariaefi29]

@xuri,

Thank you for your reply! Very confusing :) Could you please advice us what to do? How can we get the only one sheet in excel file if we don't know the name of the sheet?f.GetSheetName(f.GetActiveSheetIndex())?

So do I understand right that index is not index in its way, but just an ID of the sheet and it can be sort of random?

[mlh758]

Right now it's inconsistent, per my comment above. I had implemented a partial fix in #457 via #463 which was moving everything to be index based but missed a couple parts of the API. It's been a while since I looked at this but I think Xuri decided to roll back my change in #486 and make everything work off the SheetID instead.

[xuri]

Thank you for your reply! Very confusing :) Could you please advice us what to do? How can we get the only one sheet in excel file if we don't know the name of the sheet?f.GetSheetName(f.GetActiveSheetIndex())?

So do I understand right that index is not index in its way, but just an ID of the sheet and it can be sort of random?

Yes, as you said, ID is just the identifier of the worksheet inside the spreadsheet, it doesn't start with 1.

[mariaefi29]

Dear developers,

Thank you for your replies!

@xuri Do you have any ETA on GetSheetList? We would appreciate it!

[xuri]

The GetSheetList will be released in the next version 2.2.0 on May 11th, 2020.

[mariaefi29]

Thank you for this information!

[mariaefi29]

Would you like to consider change naming for major release version later? Index implies that there be some kind of an order. Sheet's index seems like really a sheet's number, not an identifier, even though it can be an identifier. But id may not be index.

[xuri]

Yes, currently, the "Index" of the API is actually an "ID", the next version will use a real index instead of an ID. The following functions will be affected:

GetSheetName
GetSheetIndex
GetActiveSheetIndex
SetActiveSheet

[mariaefi29]

Cool! Thanks!