Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowJuly 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more
Hi,
I have following problem: i can't define limits of the fontSize (apparently the upper one is 40 and the lower is 8). Additionaly I have not got a slider beside the input number:
My capabilities.json :
"objects": {
"customProperties": {
"displayName": "Custom Properties",
"properties": {
"title": {
"displayName": "Title",
"type": { "text": true }
},
"rotation": {
"displayName": "Rotation",
"type": { "numeric": true }
},
"textSize": {
"displayName": "Text Size",
"type": {
"formatting": {
"fontSize": true
}
}
}
}
}
}
My settings.ts:
import DataViewObjectsParser = powerbi.extensibility.utils.dataview.DataViewObjectsParser;
export class VisualSettings extends DataViewObjectsParser {
public customProperties: customPropertiesData = new customPropertiesData();
}
export class customPropertiesData {
public title: string = "Title";
public rotation: number = 0;
public textSize: number = 100;
}
Anyone knows a solution? I would be grateful.
Michal
Please rename textSize inti something else. For example: "fontSizeValue".
Ignat Vilesov,
Software Engineer
Microsoft Power BI Custom Visuals
Ok, now I have sth like this:
"fontSizeValue": {
"displayName": "Text Size",
"type": {
"formatting": {
"fontSize": true
}
}
},And the output is:
-Secondly, is there any option to leave data fields empty and eventually remove dataRoles from capabilities.json ? I am working on a totally static visual that doesn't need any data besides that entered with objects (Format tab). And my Visual is not updating unless I feed it with some data.
Thanks for the reply!
Michal
You should use numeric type instead of fontSize as well.
As far as I know, Power BI does not allot to use Custom Visuals w/o filled data fields.
Ignat Vilesov,
Software Engineer
Microsoft Power BI Custom Visuals
Ok, but now I have just regular input field:
And the key goal is to get that fancy field with up/down arrows .
Michal
Hi, would you be able to publish the code required to achieve this result please.
I'm trying to produce a visual for a 55" TV in the office and the max font size of 40 on the card visual just isn't enough.
Any help would be greatly appreciated!
Hi,
Please check an April release of PowerBi Desktop that will be delivered soon.
Kind Regards,
Evgenii Elkin,
Software Engineer
Microsoft Power BI Custom Visuals
[email protected]
Thanks Evgenii, I look forward to it!
Btw, you can try
validValues: {
yourFieldName: {
numberRange: {
min: 10,
max: 100
}
}
}There's no way to override limits and keep arrows to increase/decrease values.
Ignat Vilesov,
Software Engineer
Microsoft Power BI Custom Visuals
Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.
Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.
| User | Count |
|---|---|
| 3 | |
| 2 | |
| 1 | |
| 1 | |
| 1 |