I want to export my custom entity from the admin like products, customers, etc... I have already created the code for the import for my custom entity and it is working fine. But now I want to add the same entity for the export my data. Please see attached image that how I want the functionality.
There is a simple database table with three fields. The table name is 'manufacturer_manufacturer' and fields name are following.
There is no any primary key.
So I want just export above data from my table only.
I want to add the option in dropdown like 'manufacturer'.If admin selects that value and export then all the data should be exported in the CSV format.