Using .Any to optimize linq queries.

If you have linq code that uses the .Count() function to check to see if an item exists then you can use .Any() to do the same thing, just faster.

replace code like this:

var query = (from cust in Customer
     where cust.CustomerId == customerId 
     select cust);
    return (query.Count() == 0);

with this:

var query = (from cust in Customer
     where cust.CustomerId == customerId 
     select cust);            return (query.Any());