Line Items in DataCellDetail - using BR

It looks like you have not specified a text-type view in the member script. e.g. V#Annotation, (unless my eyes are playing tricks on me)

Text is stored in completely separate tables from numerical amounts, so although the text and numeric amounts appear 'packaged' together in a cell in a Cube View, that is not the way they are stored in the application.
There is a common myth that cell-text is bound to a numerical intersection. They are completely separate.

Also you should test if the DataCellEx and DataCellAnnotation are valid objects (not nothing) , otherwise you will almost certainly get errors like "object not set to a reference". Try breaking it out , like this:

Dim cell As dataCellInfoUsingMemberScript = brapi.Finance.Data.GetDataCellUsingMemberScript(si,"AUM","V#Annotation: .... rest of member filters...")
Dim cellText As String = String.Empty
If cell.DataCellEx IsNot Nothing then
   cellText = cell.DataCellEx.DataCellAnnotation
end if

Thanks Chris! I understand what you mentioned. I do have working line for annotations. My issue is with DataCellDetail function as I am trying to read the line items and add to the report. I did try with and wihtout View and did not work. Will continue to play with it. My aim here is to se someone has used it before and has some pointers on how exactly it works.

Working annotation reading code:

PrepComments = BRapi.Finance.Data.GetDataCellUsingMemberScript(si,"AUM","Cb#AUM:E#RevAccComments:C#Local:S#RevAccRecon:T#"+ FYQ +":V#Annotation:A#MGMTFEES:F#CQ_MGMT_FEE_REV:O#Forms:I#None:U1#None:U2#None:U3#None:U4#"+ Product.Member.Name +":U5#None:U6#None:U7#None:U8#None").DataCellEx.DataCellAnnotation

Could you show a screen capture of what sort of text / "line item" information you want to retrieve, as shown in the OneStream client when you right-click on a cube view.

Do you mean Data Attachments, which is loosely what HFM used to call "line item detail"?

You also don't mention whether this needs to be done in a Finance BR, or an Extender rule ( the difference being whether we can use the Finance API methods or not ).

Assuming it is not in a Finance BR, then then you should be able to retrieve the text from the cell attachments list, like this:

Dim strMemberScript As String = String.Format("Cb#AUM:E#RevAccComments:C#Local:S#RevAccRecon:T#{0}:V#Annotation:A#MGMTFEES:F#CQ_MGMT_FEE_REV:O#Forms:I#None:U1#None:U2#None:U3#None:U4#{1}:U5#None:U6#None:U7#None:U8#None", FYQ, strU4ProdName)
Dim sbCellTexts As New Text.StringBuilder()
Dim lstAttachements As DataAttachmentList = brapi.Finance.Data.GetDataAttachments(si, strMemberScript, False)
For Each attachment As DataAttachment In lstAttachements.Items
	If Attachment.Text IsNot Nothing Then
		sbCellTexts.AppendLine(Attachment.Title & " / " & Attachment.Text)
	End If
Next
BRApi.ErrorLog.LogMessage(si,"Retrived all the text items from cell:", sbCellTexts.ToString() )

Here is the screenshot: user input cell details using this feature

Below screenshow the lineitems when you select "Celldetail" option. I am trying read this detail and add to the report.

 hopefully this helps understand the requirement.