string to Enum in c#

Question

I need to assign a string to a Enum value. My scenario and code below

Am accessing a webservice method say addWhere(int i ,int j,Comparison)

Where Comparison is of type Enum.

Am fetching value from UI and having it in a string

string strComparison= "AND"; or

string strComparison= "OR"

i need to set these values to ENUM. I tried the below code

addWhere(2 ,3,Enum.Parse(typeof(Comparison),strComparison))

But didnt worked. What is the way to solve this or any alternate methods ?

Thanks

`Enum.Parse` is the solution, there is no good alternative. You don't say what goes wrong. See the duplicate or the documentation. — Jodrell, Apr 16 '13 at 10:47
"didn't work" is never an acceptable problem description. **What** didn't work? What **error** did you get? Please keep in mind to include all **relevant details** in your questions. — J. Steen, Apr 16 '13 at 10:48

score 2 · Answer 1 · answered Apr 16 '13 at 10:43

2

Looks like your missing the return cast i.e.

(Comparison)Enum.Parse(typeof(Comparison), strComparison);

Enum.Parse returns an object were as your addWhere method is expecting a Comparison type value.

answered Apr 16 '13 at 10:43

James

80,725
18
167
237

score 0 · Answer 2 · answered Apr 16 '13 at 10:45

0

You must cast the result of Enum.Parse to the correct type:

addWhere(2, 3, (Comparison)Enum.Parse(typeof(Comparison), strComparison));

answered Apr 16 '13 at 10:45

John Willemse

6,608
7
31
45

score 0 · Answer 3 · answered Apr 16 '13 at 10:45

0

You can do something like:

Comparison comparison;
if(Comparison.TryParse(strComparison, out comparison))
{
   // Work with the converted Comparison
}

answered Apr 16 '13 at 10:45

Tomtom

9,087
7
52
95

score 0 · Answer 4 · answered Apr 16 '13 at 10:55

As said in earlier posts, you might be missing type casting.

enum Comparision
{
        AND,
        OR
}

class Program
{
    static void Main(string[] args)
    {
        Comparision cmp = (Comparision)Enum.Parse(typeof (Comparision), "And", true);
        Console.WriteLine(cmp == Comparision.OR  );
        Console.WriteLine(cmp == Comparision.AND);
    }
}

string to Enum in c#

4 Answers4