topic Re: Custom Visual Adding a raw singular column without categorising the values in Developer

Custom Visual Adding a raw singular column without categorising the values

Anonymous — Fri, 02 Feb 2024 12:50:59 GMT

Hello,
im trying to create my own custom visual histogram but i'm having some trouble when importing my data points into the visual.
When choosing my dataroles in the capabilities.json there are the options to map the data by categories, single, table etc but all of these require a grouping category. What i need though is only to get only a single column of data points into my visual without any summarizing of any of the points. Just the raw column.
I haven't found anything to this regard yet so your help would be greatly appreciated.
Thank you

Re: Custom Visual Adding a raw singular column without categorising the values

JanRak — Sat, 03 Feb 2024 17:43:19 GMT

Hi
Not sure if I understand correctly, but I think the following creates a field where you can drag a single column into, and it binds the data.

Here's a decent tutorial:
https://github.com/ABKimmel/Power-BI-Visualization-Development-Tutorial/blob/master/docs/capabilities/2-AddingDataViewMappings.md

{ "dataRoles": [ { "displayName": "Field Name", "name": "fieldInternalName", "kind": "Grouping" } ], "dataViewMappings": [ { "categorical": { "categories": { "select": [ { "bind": { "to": "fieldInternalName" } } ] } }, "conditions": [ { "fieldInternalName": { "max": 1 } } ] } ] }

Re: Custom Visual Adding a raw singular column without categorising the values

Anonymous — Tue, 06 Feb 2024 09:49:10 GMT

Almost, this does allow me to get only one column of data points. But for example if i have a column like this:

it still puts the 0.02 into one bucket:

But i would like to have them as seperate values.