What's wrong? (conditional Text.BetweenDelimiters)

[MarkShu]

I try to make conditional extration in powery query:

Table.TransformColumns(#"Previous step", each if Text.Contains([Key], "-id") then {{"Key", each Text.BetweenDelimiters(_, "-id", " "), type text}} else null) 


Error: 
Expression.Error: We cannot convert a value of type Function to type List.
Details:
Value=Function
Type=Type

[v-yuta-msft · Accepted solution]

@MarkShu ,

Modify the code as below:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjTSzUxRitWJVjIyBrIMjUwMwTwQw0QpNhYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Key = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Key", type text}}),
    Result = Table.AddColumn(#"Changed Type", "New Column", each if Text.Contains([Key], "-id") then {{"Key", each Text.BetweenDelimiters(_, "-id", " "), type text}} else null)
in
    Result

 

Community Support Team _ Jimmy Tao

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