Immediate Query Execution : Deferred Query : LINQ C# Source Code

Immediate Query Execution

    
 

using System;
using System.Linq;

class MainClass {
    static double Square(double n) {
        Console.WriteLine("Computing Square(" + n + ")...");
        return Math.Pow(n, 2);
    }

    public static void Main() {
        int[] numbers = { 1, 2, 3 };
        var query = from n in numbers select Square(n);
        foreach (var n in query.ToList())
            Console.WriteLine(n);
    }
}

 
    
   
  
   

Related in same category :
• Deferred Query Execution
• How queries can be executed immediately with operators such as ToList().
• Shows how queries can be reused
• Deferred Query Execution
• A deferred execution query is reevaluated when you reenumerate
• most query operators is that they execute not when constructed, but when enumerated