Hello LINQ

Below is a simple demo of LINQ which prints all the items in the string array.

using System;
using System.Linq;

public partial class Linq_HelloLinq : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
    string[] greetings = { "Hello World", "Hello LINQ", "Hello" };

    var greetingsList = from l in greetings select l;

    foreach (var greeting in greetingsList)
    {
      Response.Write(greeting + "<br>");
    }
  }
}

Important things to note are:
1. using System.Linq;
2. var greetingsList = from l in greetings select l;

Rest all is pretty straight forward.

After you are done with doing the above, try adding a where condition to it as below.

using System;
using System.Linq;

public partial class Linq_HelloLinq : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
    string[] greetings = { "Hello World", "Hello LINQ", "Hello" };

    var greetingsList = from l in greetings where l.EndsWith("World") select l;

    foreach (var greeting in greetingsList)
    {
      Response.Write(greeting + "<br>");
    }
  }
}

Thats it here ends our simple linq demo.