Hello,
I am creating a Power Apps application with cascading dropdown menus. I'd like these cascading dropdown menus to default to an blank value, but I can't seem to do that.
Could you help me please ? 😞 Thanks in advance !
My app is like this :

For the first dropdown, I have this code : Items = Sort(Distinct(Categorie;Categorie);Result)
For the second dropdown, I have this code : Items = Distinct(Filter(Filiere;Categorie.Value=Dropdown2.Selected.Result);Title)
For the third dropdown, I have this code : Items = Distinct(Filter('Sous-Filiere';Filiere.Value=Dropdown5.Selected.Result);'Sous-Filiere')
My Sharepoint list for the first dropdown :

My Sharepoint list for the second dropdown :

My Sharepoint list or the third dropdown :
