Cannot successfully implement color picker on visual using table mapping

Please this code snippet below to fix the issues with color picker:

        private static getSelectionIds(
            dataView: DataView,
            host: IVisualHost
        ): powerbi.visuals.ISelectionId[] {
            const queryName: string = dataView.table.columns[0].queryName;

            return dataView.table.identity.map((identity: DataViewScopeIdentity) => {
                const categoryColumn: DataViewCategoryColumn = {
                    source: {
                        queryName,
                        displayName: null
                    },
                    values: null,
                    identity: [identity]
                };

                return host.createSelectionIdBuilder()
                    .withCategory(categoryColumn, 0)
                    .withMeasure(queryName)
                    .createSelectionId();
            });
        }

Ignat Vilesov,

Software Engineer

Microsoft Power BI Custom Visuals

[email protected]

Alright thank you !

For those with the same situation, I find a workaround.

You should use

d3.scale.ordinal().domain(data.map(d => d.dimension).range(color_library)

With color_library an array of color your users can pick ( I take 10  for my chart but you can use 3 or 20...).

Not the best solution, I have to admit but it works for now until I find something else :)