Very Simple Linq Usage Sample

Here I will give one very simple linq sample code.

A query that will return each of the items in the people List collection by aliasing the people collection with a variable p and then selecting p (p is of type string remember as the people List is a collection of immutable string objects).

You may notice that query is of type IEnumerable - this is because we know that query will hold an enumeration of type string. When we foreach through the query the GetEnumerator of query is invoked.

protected void Page_Load(object sender, EventArgs e)
{
List people = new List(){
"Sen", "Paulose", "Thomas", "Raju",
"Anil", "Shyam", "Saidwin"
};

IEnumerable query = from p in people select p;
foreach (string person in query)
{
Response.Write(person);
}
}