How can I access different item from a list?

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I have a list where all items are string.

Like ab,bc,ab,ts,ab,bc,ts,op

From here you can see, there is a lot of string item in different places of list are same.

I want get all the items only for once from this list.

Like ab,bc,ts,op from from the given list.

how can i get different item all items from a list?

Posted 17-Feb-14 22:04pm

sachi Dash

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Krunal Rohit · Answer 1 · 2014-02-17T22:09:00

You could use Distinct method of collection.
Distinct removes all duplicate elements in a collection. It returns only the distinct elements. The System.Linq namespace provides this extension method.

static void Main()
    {
	// List with duplicate elements.
	List<int> list = new List<int>();
	list.Add(1);
	list.Add(2);
	list.Add(3);
	list.Add(3);
	list.Add(4);
	list.Add(4);
	list.Add(4);

	foreach (int value in list)
	{
	    Console.WriteLine("Before: {0}", value);
	}

	// Get distinct elements and convert into a list again.
	List<int> distinct = list.Distinct().ToList();

	foreach (int value in distinct)
	{
	    Console.WriteLine("After: {0}", value);
	}
    }

Hope this would help you :)
-KR