Question

I got the following enum:

 public enum detallistaDocumentStatus {

    /// <remarks/>
    ORIGINAL,

    /// <remarks/>
    COPY,

    /// <remarks/>
    REEMPLAZA,

    /// <remarks/>
    DELETE,
}

then I got a class property of type detallistaDocumentStatus:

 public detallistaDocumentStatus documentStatus {
        get {
            return this.documentStatusField;
        }
        set {
            this.documentStatusField = value;
        }
    }

In the real life the user will send us a number (1, 2, 3 or 4) representing each enum value in the order they are declared.

so, is it possible to cast like this?

det.documentStatus = (detallistaDocumentStatus)3;

if not, how could I get the enum value using an integer as an index, we are using a lot of enums, so we want to do something generic and reusable

Answer 1

Yes, it’s possible to cast Enum to int and vice versa, because every Enum is actually represented by an int per default. You should manually specify member values.
By default it starts from 0 to N.

It’s also possible to cast Enum to string and vice versa.

public enum MyEnum
{
    Value1 = 1,
    Value2 = 2,
    Value3 = 3
}

private static void Main(string[] args)
{
    int enumAsInt = (int)MyEnum.Value2; //enumAsInt == 2

    int myValueToCast = 3;
    string myValueAsString = "Value1";
    MyEnum myValueAsEnum = (MyEnum)myValueToCast;   // Will be Value3

    MyEnum myValueAsEnumFromString;
    if (Enum.TryParse<MyEnum>(myValueAsString, out myValueAsEnumFromString))
    {
        // Put logic here
        // myValueAsEnumFromString will be Value1
    }

    Console.ReadLine();
}