Question

how do I cast and int into a string? None of the following do works:

from s in ctx.Services
    where s.Code.ToString().StartsWith("1")
    select s

from s in ctx.Services
    where Convert.ToString(s.Code).StartsWith("1")
    select s

from s in ctx.Services
    where ((string)s.Code).ToString().StartsWith("1")
    select s

EDIT

The error I get is:

LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression

Answer 1

Linq to Entities does not support as many conversion of functions to server hosted sql.

ToString (on anything) is one of them

Here’s the list of supported functions

This has been asked before on Stack overflow specifically asking how to convert an int to a string