How to get enum Key in C# using Enum Value [duplicate]

Question

I have 1 string variable, have Enums and need to compare incoming string variable to Enum Values, and if it finds compares, I need to take compared Enum Key and assign to some int variable. How can I do this? I need Only Enum Key.

For Example I have :

public class Enums
{
  Admin = 0,
  Seller = 1,
  Member = 2,
  Unknown = 3
}

And Some base class:

string tech = “Member”;

foreach(string value in Enum.GetNames(typesof(Enums)))
{
  If(tech == value)
{
  int enumValueKey =  And here I need '2'. 
}}}

In Base class, I have only string type variable for example (string Admin, string Seller, string Member, string Unknown). If It finds 1 comparison , then should write Key in int value , the same value as was found in Enums.

Thanks a lot

int key = (int) (Enum.Parse<Enums>(tech)); - just Parse and then cast to int if you want — Dmitrii Bychenko
– Dmitrii Bychenko, Commented Dec 24, 2021 at 21:45

Ran Turner · Accepted Answer · 2021-12-25 08:38:53Z

2

You can achieve this via Enum.Parse and typeof

public enum Enums
{
  Admin = 0,
  Seller = 1,
  Member = 2,
  Unknown = 3
}

int myEnum = (int)(Enums)Enum.Parse(typeof(Enums), "Seller");
Console.WriteLine(myEnum); // 1

edited Dec 25, 2021 at 8:38

answered Dec 24, 2021 at 20:22

Ran Turner

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3 Comments

Markus Safar Over a year ago

It is important to mention that nameof is evaluated at compile time so something like Enums enumValue = Enums.Seller; string enumName = nameof(enumValue); would result in "enumValue" not "Seller".

Levan Amashukeli Over a year ago

Thank you , but i need in the end take int. Exp: i have string a = "Member" and need to take his Key (number 2)

Ran Turner Over a year ago

I updated my answer for your request @LevanAmashukeli

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