How to convert enum to int

Question

In C# we can convert an enum to an int by static typecasting as shown below:

int res = (int)myEnum;

Is any other way to do this conversion?

http://stackoverflow.com/questions/29482/cast-int-to-enum-in-c-sharp — 4b0, Feb 11 '13 at 06:23
@Shree - That question is int-to-enum, this question is enum-to-int — Richard Szalay, Feb 11 '13 at 06:25

score 22 · Accepted Answer · answered Feb 11 '13 at 06:24

22

There are plenty of other ways (including Convert.ToInt32 as mentioned by acrilige), but a static cast is probably the best choice (as far as readability and performance are concerned)

answered Feb 11 '13 at 06:24

Richard Szalay

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Just to add the [link](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/language-specification/conversions#explicit-enumeration-conversions) to the C# 6.0 documentation – Pimenta Aug 16 '21 at 18:13

score 10 · Answer 2 · answered Feb 11 '13 at 06:26

10

Best would be:

int res = Convert.ToInt32(myEnum);

OR a static cast

int res = (int)myEnum;

answered Feb 11 '13 at 06:26

Vishal Suthar

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score 4 · Answer 3 · edited Jun 08 '20 at 12:53

4

Here is an example enum:

public enum Books
{
    cSharp = 4,
    vb = 6,
    java = 9
}

Then the code snippet to use would be:

Books name = Books.cSharp;
int bookcount = Convert.ToInt32(name);

edited Jun 08 '20 at 12:53

ono2012

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answered Feb 11 '13 at 06:38

Rahul

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score 0 · Answer 4 · answered Feb 11 '13 at 08:26

0

you can do

int enumInt = Convert.ToInt32(yourEnum);

answered Feb 11 '13 at 08:26

masterlopau

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How to convert enum to int

4 Answers4