Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Grow your Fabric skills and prepare for the DP-600 certification exam by completing the latest Microsoft Fabric challenge.

Reply
ThiemenSiemensm
Frequent Visitor

Create list from range and values

Hi everyone,

 

I need an extra column in power query (list) from which I can generate a set of rows in power query for each of the items in the list.

The contents of the list must be based values in another column (shown below). The list should contain the range min1..max1 and min2..max2, where the ranges are split by an | sign. For instance the combination "1..5|10..15|20" would generate the list containing the values 1,2,3,4,5,10,11,12,13,14,15,20. Does anyone know how this is done in power query? Secondly, I would like to add as many rows as items in the list, where the new row value is the value from the list.

Looking forward to your responses!

 

 

ThiemenSiemensm_0-1673701515720.png

 

1 ACCEPTED SOLUTION
ppm1
Solution Sage
Solution Sage

Here's one way to do it in the query editor.  To see how it works, just create a blank query, open the Advanced Editor and replace the text there with the M code below.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtTTM60xNNDTMzStMQJSxgZKsTpAYQOQkBFIDMgwMoSIGoPoWAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ListsAsText = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ListsAsText", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each List.Combine(List.Transform(Text.Split([ListsAsText], "|"), each Expression.Evaluate("{"&_&"}")))),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom")
in
    #"Expanded Custom"

 

Pat

 

Microsoft Employee

View solution in original post

4 REPLIES 4
KeyurPatel14
Responsive Resident
Responsive Resident

Can you please provide sample data fileso that I can help you quicker.

 

wdx223_Daniel
Super User
Super User

=Table.AddColumn(PreviousStepName,"Custom",each Expression.Evaluate("{"&Text.Replace([Samentelling],"|",",")&"}"))

ppm1
Solution Sage
Solution Sage

Here's one way to do it in the query editor.  To see how it works, just create a blank query, open the Advanced Editor and replace the text there with the M code below.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtTTM60xNNDTMzStMQJSxgZKsTpAYQOQkBFIDMgwMoSIGoPoWAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ListsAsText = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ListsAsText", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each List.Combine(List.Transform(Text.Split([ListsAsText], "|"), each Expression.Evaluate("{"&_&"}")))),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom")
in
    #"Expanded Custom"

 

Pat

 

Microsoft Employee

Thanks, this worked!

Helpful resources

Announcements
RTI Forums Carousel3

New forum boards available in Real-Time Intelligence.

Ask questions in Eventhouse and KQL, Eventstream, and Reflex.

MayPowerBICarousel1

Power BI Monthly Update - May 2024

Check out the May 2024 Power BI update to learn about new features.

Top Solution Authors
Top Kudoed Authors