What you're trying to do doesn't sound like a great idea but if you really want to do it you could:
Write a SQL script that will generate the appropriate C# syntax and use the result of that query to paste into your .cs Seed file.
However, if you just want random test data; RedGate have a tool that will generate realistic looking data. http://www.red-gate.com/products/sql-development/sql-data-generator/
If you just want some specific test data, I'd suggest taking the one off hit and writing the seed data manually.