CSharp - Using One of the Func Delegate Declarations

Description

Using One of the Func Delegate Declarations

Demo

using System;  
using System.Collections.Generic;
using System.Linq;  
class Program//  w ww .  j a  va 2 s  .  c  o m
{
    static void Main(string[] args)
    {
        //  Create an array of ints.  
        int[] ints = new int[] { 1,2,3,4,5,6 };  
          
        //  Declare our delegate.  
        Func<int, bool> GreaterThanTwo = i => i > 2;  
          
        //  Perform the query ... not really.  Don't forget about deferred queries!!!  
        IEnumerable<int> intsGreaterThanTwo = ints.Where(GreaterThanTwo);  
          
        //  Display the results.  
        foreach(int i in intsGreaterThanTwo)  
          Console.WriteLine(i);  
    }
}

Result

Related Topic

• Query Expressions
• Create Anonymous Types
• Collection Initialization on List
• Returning IEnumerable<T>, Yielding, and Deferred Queries
• Returning a List So the Query Is Executed Immediately and the Results Are Cached
• Query with Intentional Exception Deferred Until Enumeration
• Use the var Keyword When Confused
• XML Query Using LINQ to XML
• Database Query Using LINQ to SQL
• Converting an Array of Strings to Integers and Sorting It
• Get SQL query via DataContext Log
• Create extension for string to convert string to double and bool
• LINQ to Objects Query
• Query Results Changing Between Enumerations

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