@Powerapps12345
I am assuming you are using SharePoint as your data source.
When we have dependency of the columns, we need to maintain the dependency mapping in a separate SharePoint list.
In the mapping list "CountriesCities", maintain the following columns:
| Country |
City |
| US |
New York |
| US |
Chicago |
| India |
Delhi |
| India |
Mumbai |
In your data connections, add the above list as well.
First Drop Down: Distinct(CountriesCities,Country)
Second Drop Down: Filter(Countries, Country=FirstDropDown.Selected.Value).City
I hope this will be helpful. Please let us know if you have any questions here.
Regards
Krishna Rachakonda
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