convert IQueryable to

Question

I want to select my price level in database to compare with the an integer number. But It is error : Operator \'==\' cannot be applied to operands of type \'System.Linq.IQue

Answer 1

Here is my suggestion:

 if (list_pricelevel.First() == 3) 
 { 
      Response.Write("Welcome");  
 }

This may rise a NullReferenceException in case there is no item in Customers satisfying where c.WebAccount == userName.

Explanation:

list_pricelevel is a IEnumerable of items satisfying your where clause.