How to remove a duplicates values from the array and list

[copy_writes (chethan)]

Hello I have to remove the Duplicate values from the array Or list how to do that
I have {“value1”,“value2”,“value1”,“value4”}
How to remove duplicates values from it

USE LINQ or some other way you know please give me a solution

I use this one From s in ListOf_String Select s distinct

But I couldn’t Understand what is this can anyone explain

Thanks
Chethan P

[Yoichi]

Hi,

How about the following expression?

arrString.Where(Function(x) arrString.Count(function(y) y=x)=1).ToArray

Regards,

[copy_writes (chethan)]

What about Union we can use this? instead of where
How to use this Union

[copy_writes (chethan)]

@Yoichi

arrString.Count(function(y) y=x)=1)

If you don’t mind can you please explain this

regards

[Yoichi]

Hi,

What about Union we can use this? instead of where

Union method produces the set union of two sequences. I don’t think it’s suitable for this case.

Enumerable.Union Method (System.Linq)

arrString.Count(function(y) y=x)=1)

This means, if number of the items (each item) is 1, it returns true, if not 1 returns false. As a result, we can filter duplicated items using Where method.

Regards,

[Yoichi]

Hi,
Sorry. I might have misunderstanding.

If your expected result is {“value1”,“value2”,“value4”} ,the following Union method works.

arrString.Union(arrString).ToArray

The above expression :

arrString.Where(Function(x) arrString.Count(function(y) y=x)=1).ToArray

returns {“value2”,“value4”}

Regards,