Always one value selected in Slicer

[CeBrusa]

I need the exact same solution, to avoid the "unselect all" and show only 1 value. Were you able to solve this?

[CeBrusa]

I need the exact same solution, avoid the "unselect all" and show only one value. Were you able to solve this?

[SoumyaPuppala]

Hello,

There is no option to disable "Select all" or to have a force selection in a slicer. But i have developed a workaround to hide data for "ALL". Create 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.

[Robbertos]

Single select slicer is now available:

https://powerbi.microsoft.com/en-us/blog/power-bi-desktop-march-2019-feature-summary/#singleSelectSl...