How can disctinc values of list of byte?

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Dim Bytes As Byte() = {22, 123, 1, 1, 0, 22}

I want order and disticnt Bytes array.

Bytes = {0,1,22,123}

How can i do?
Thanks

What I have tried:

Dim Bytes As Byte() = {22, 123, 1, 1, 0, 22}
Dim ListByte As List(Of Byte) = Bytes.ToList
ListByte = ListByte.OrderBy(Function(x) x).ToList.Distinct

Posted 18-Apr-19 14:36pm

gacar

Updated 18-Apr-19 17:59pm

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2 solutions

Solution 1

You need to tack "ToList" on the end; Distinct is returning some other type of collection.

(Use "var" until you work out the specifics).

Posted 18-Apr-19 15:42pm

Gerry Schmitz

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Dave Kreskowiak · Accepted Answer · 2019-04-18T18:00:00

This can be done a little cleaner like this:

VB.NET

Dim bytes As Byte() = {22, 123, 1, 1, 0, 22}
bytes = bytes.Distinct().OrderBy(Function(x) x).ToArray()

Distinct can be called on any IEnumerable, which an array of Byte is. In your case, Distinct() will return an IEnumerable(Of Byte). This has the effect of making the next operation cost a little less since you're not sorting as many elements.

The call to OrderBy() can also be called on any IEnumerable, which the Distinct call just returned. It returns an IOrderedEnumerable(Of Byte), which is a subclass of IEnumerable. What that means is you can treat any IOrderedEnumerable the same as if it was an IEnumerable, which is what you're going to do next.

The last operation is simple. It converts the result of the OrderBy back to an array. That's easily done with the call to ToArray. It creates a new array out of any IEnumerable.

Done. YOu've got your sorted, distinct array.