Always one value selected Filter

Hello,

There is no direct option to disable "Select all" or to have a force selection in a slicer.

But i have developed a workaround to hide all the data in my report by creating 2 measures as below.

Valid_selection = if(HASONEVALUE(Slicer_attribute), "", "Error: Select a Single value")

Valid_selection_numeric = if(HASONEVALUE(Slicer_attribute), 1, 0)

Pull the first measure into a card, which will be blank when a single value is selected and will throw an error message when it is more than one/All.

Second measure to be added as a visual level filter, add Valid_selection_numeric = 1 as visual level filter on all the visuals. Which means, the data will be displayed only when a single value is selected.  Nothing but hiding the data for all.

Let me know if you have any questions.

Hope this helps.

Thanks,

Soumya