Set value to [Flags] Enum from list c#

Question

I need to set the Enum value by items taken from the list.

I have Enum:

[Flags]
public enum EnumTest
{
    Val1= 1, 

    Val2= 2, 

    Val3= 4
}

List with values:

var values = new List<EnumTest> {EnumTest.Val1, EnumTest.Val3};

How can I get the following result using a foreach?

var result = EnumTest.Val1 | EnumTest.Val3;

Thanks

possible duplicate of [How do I enumerate an enum in C#?](http://stackoverflow.com/questions/105372/how-do-i-enumerate-an-enum-in-c) — Nikola, Oct 10 '14 at 13:34
@Nikola Not a duplicate of that. Here, there is a concrete list to iterate over. — , Oct 10 '14 at 13:34
@Nikola Thanks. http://stackoverflow.com/questions/105372/how-do-i-enumerate-an-enum-in-c/944352#944352 this answer was helpful. — Pavel, Oct 10 '14 at 13:41

score 4 · Answer 1 · answered Oct 10 '14 at 13:34

4

EnumTest result = 0;

foreach (EnumTest et in values)
{
   result |= et;
}

answered Oct 10 '14 at 13:34

brz · Accepted Answer · 2014-10-10T13:59:10.463

4

Here's a solution using Linq:

var result = values.Aggregate((x, y) => x |= y);

edited Oct 10 '14 at 13:59

answered Oct 10 '14 at 13:37

brz

2 Answers2