Forum Discussion
Use List entry in Table.SelectRows function
Hello everybody.
I have a problem in using a List as argument for a column/record in the function Table.SelectRows.
From my source I got TABLE where one COLUMN, eg. Column3, contains all necessary information. The challenge is that the column I am looking for is not always Column3. It can be also Column4 or Column5. I managed to find a way that I got back the correct column name in a LIST. Now I want to use this LIST entry in the Table.SelectRows function to get rid of all other unwanted stuff. But this do not want to work.
= Table.SelectRows(Source, each ([Referenz by using the LIST] = "Value for Filtering"))
So, what will be the step to go from e.g. {Column3} to the Source[Column3] referenz.
Thanks.
Hi TLGemp,
Here is query table code that I used to transform table structure based on 'transpose table' and 'remove blank row' functions to output expected table structure without specific column names as conditions, you can try it if helps:
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WUtKBoVgdLLyU1GJDiEhZYo4hkqgRXNQISdQYLmqsFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t]), #"Removed Blank Rows" = Table.SelectRows(Source, each not List.IsEmpty(List.RemoveMatchingItems(Record.FieldValues(_), {"", null}))), #"Transposed Table" = Table.Transpose(#"Removed Blank Rows"), #"Removed Blank Rows1" = Table.SelectRows(#"Transposed Table", each not List.IsEmpty(List.RemoveMatchingItems(Record.FieldValues(_), {"", null}))), #"Promoted Headers" = Table.PromoteHeaders(#"Removed Blank Rows1", [PromoteAllScalars=true]), #"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"des1", type text}, {"des2", type text}, {"des3", type text}}) in #"Changed Type"Regards,
Xiaoxin Sheng
3 Replies
Hi TLGemp ,
Can you please share a pbix or some dummy data that keep the raw data structure with expected results? It should help us clarify your scenario and test to coding formula.
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Regards,
Xiaoxin Sheng
Source value - the column of des1,des2,des3 can vary and is not always the same
null null null null null null null null null des1 null val1 null des2 null val2 null des3 null val3 Result
des1 des2 des3 val1 val2 val3 let Quelle = Excel.CurrentWorkbook(){[Name="Tabelle4"]}[Content], #"Geänderter Typ" = Table.TransformColumnTypes(Quelle,{{"Column1", type any}, {"Column2", type text}, {"Column3", type any}, {"Column4", type text}}), #"Tiefer gestufte Header" = Table.DemoteHeaders(#"Geänderter Typ"), #"Transponierte Tabelle" = Table.Transpose(#"Tiefer gestufte Header"), #"Gefilterte Zeilen" = Table.SelectRows(#"Transponierte Tabelle", each ([Column4] = "Des1")), Column1 = #"Gefilterte Zeilen"[Column1], Benutzerdefiniert1 = Table.SelectRows(Quelle, each ([Column2] <> null)) in Benutzerdefiniert1In the line Benutzerdefiniert1 I would like to use the list Column1 from the line above instead of the static [colum2]. This should make the code more dynamic.
Hi TLGemp,
Here is query table code that I used to transform table structure based on 'transpose table' and 'remove blank row' functions to output expected table structure without specific column names as conditions, you can try it if helps:
let Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WUtKBoVgdLLyU1GJDiEhZYo4hkqgRXNQISdQYLmqsFBsLAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t]), #"Removed Blank Rows" = Table.SelectRows(Source, each not List.IsEmpty(List.RemoveMatchingItems(Record.FieldValues(_), {"", null}))), #"Transposed Table" = Table.Transpose(#"Removed Blank Rows"), #"Removed Blank Rows1" = Table.SelectRows(#"Transposed Table", each not List.IsEmpty(List.RemoveMatchingItems(Record.FieldValues(_), {"", null}))), #"Promoted Headers" = Table.PromoteHeaders(#"Removed Blank Rows1", [PromoteAllScalars=true]), #"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"des1", type text}, {"des2", type text}, {"des3", type text}}) in #"Changed Type"Regards,
Xiaoxin Sheng
