问题
I have installed Firebird server 3.0 and Firebird ADO.net provider Client 7.1.1.0. I am trying to connect a database of this server via Visual Studio 2015 using entity framework.
I have installed DDEX. Now, I can connect a database via server explorer but when I try to add a data model, the data source for Firebird is not in the options. I tried to follow this_link but I was still not successful. This is the image from server explorer where Firebird data source is present and connection is successfully opened from here
And this is the image for data model
Any idea why this is happening? How to resolve this?
来源：https://stackoverflow.com/questions/63040694/why-visual-studio-doesnt-show-data-source-of-firebird