Hi,
I have two choice filter which contains value.
Now I'm trying to make it cascading in Powerapp form but Unable to get this done.
Here I have added screen shot of these two filter.
Please take a look and guide me to get it resolved.


Above image is choice column which I have created in Sharepoint and using sharepoint list choice column, I'm creating form in Powerapps.
Below is first choice filter their Item Property.

Below is second filter and their Item Property.

I have gone through many thread like this https://powerusers.microsoft.com/t5/Building-Power-Apps/Cascading-dropdown-with-SharePoint-Choice-columns/m-p/465630#M139414 ffor solution but IN every thread, People are using dropdown1 in formula but I don't have any dropdown in my form. Either I have combobox or datacard but no dropdown. You can see in below Image.

I simply want that If I select anything in filter one then second filter should give value only related to first filter.
Thanks in Advance!