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A
AndreaF
April 20, 2023
Solved

Loading CSV containing special characters to an application table

  • April 20, 2023
  • 2 replies
  • 0 views

Hi all, I have a dashboard with an SQL table editor component. Through the component in the dashboard, I can save text to the table, including special characters. For example, there is no problem in saving a string containing α (alpha).

AndreaF_0-1681984992114.png

 

Now I am trying to load a CSV file to that same table. The file contains some special characters too. To load the file, I have built a business rule which contains the following command:

loadResults = BRApi.Utilities.LoadCustomTableUsingDelimitedFile(si, SourceDataOriginTypes.FromFileUpload, filePath, fileinfo.XFFile.ContentFileBytes, "|", "App", "LOAD_TABLE", "Merge", lfieldtokens, True)

 

The special characters are not recognised, and this is the result when loading TestNameαβπ.

AndreaF_1-1681984992115.png

 

Is there a way to load the CSV file and preserve the special characters?

Best answer by JackLacava

Thank you. As I suspected, it's an encoding issue. The file is UTF-8, whereas OneStream largely reasons in UTF-16 (traditional default in Windows/.Net world). There are two ways to fix this, as far as I can see:

  • just convert the file to UTF-16 before uploading it, for example with Notepad++, or
  • turn the file bytes back to string and then from there to UTF-16 bytes using the Encoding classes.

Here's some (untested) code that should send you in the right direction:

 

' at the top
Imports System.Text

[...]

' get the encodings we need
Dim utf8 As Encoding = encoding.UTF8
Dim utf16 As Encoding = Encoding.Unicode
' turn original bytes into String ...
Dim text As String = utf8.GetString(fileinfo.XFFile.ContentFileBytes)
' ... and from there to UTF16 bytes
Dim toUpload As Byte() = utf16.GetBytes(text)
' upload utf16 bytes
BRApi.Utilities.LoadCustomTableUsingDelimitedFile(si, _
	SourceDataOriginTypes.FromFileUpload, filePath, _
	toUpload, _
	"|", "App", "LOAD_TABLE", "Merge", lfieldtokens, True)

 

 

 

 

 

2 replies

J
JackLacava
April 20, 2023

I expect that will depend on the encoding of the original file. Can you upload the sample file you're using, so I can run a few tests?

A
AndreaFAuthor
April 20, 2023

Hi, I have uploaded the test file to WeTransfer. Let me know if I should share it via a different method. Thank you

SpecialCharTestFile.csv 

J
JackLacavaAnswer
April 20, 2023

Thank you. As I suspected, it's an encoding issue. The file is UTF-8, whereas OneStream largely reasons in UTF-16 (traditional default in Windows/.Net world). There are two ways to fix this, as far as I can see:

  • just convert the file to UTF-16 before uploading it, for example with Notepad++, or
  • turn the file bytes back to string and then from there to UTF-16 bytes using the Encoding classes.

Here's some (untested) code that should send you in the right direction:

 

' at the top
Imports System.Text

[...]

' get the encodings we need
Dim utf8 As Encoding = encoding.UTF8
Dim utf16 As Encoding = Encoding.Unicode
' turn original bytes into String ...
Dim text As String = utf8.GetString(fileinfo.XFFile.ContentFileBytes)
' ... and from there to UTF16 bytes
Dim toUpload As Byte() = utf16.GetBytes(text)
' upload utf16 bytes
BRApi.Utilities.LoadCustomTableUsingDelimitedFile(si, _
	SourceDataOriginTypes.FromFileUpload, filePath, _
	toUpload, _
	"|", "App", "LOAD_TABLE", "Merge", lfieldtokens, True)

 

 

 

 

 

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