Need some help with a dax formula

[Krijgersss]

Hello i want to use this formula for a slicer but i want to have the first part with a || or 

Lege kaart assistent = If(HASONEVALUE(Assistenten[Assistent volledig]),SELECTEDVALUE('Assistenten'[Assistent volledig],"Geen selectie"))

it think it most be something like this:

Lege kaart assistent = If(HASONEVALUE(Assistenten[Assistent volledig] || Junior[Junior volledig] || Controller[Controller volledig]),SELECTEDVALUE('Assistenten'[Assistent volledig],"Geen selectie"))

or something like this 

Namen leeg = IF(

        HASONEVALUE(Junioren[Junior volledig]), SELECTEDVALUE(Junioren[Junior volledig],

        IF(

        HASONEVALUE(Assistenten[Assistent volledig]), SELECTEDVALUE(Assistenten[Assistent volledig],

        IF(

        HASONEVALUE(Controllers[Controller volledig]), SELECTEDVALUE(Controllers[Controller volledig]))))))

but both doesnt work for me 

i have multiple slicers so if a value is selected in a slicer it gives me the value in a card visual is nothing selected in my slicers the card visual gives me "Geen selectie"

does anyone have the right formula for me 


many thanks 

[lbendlin]

Not clear to me what you are trying to achieve. Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).

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