sorry for asking this question but i didn't found the right solution for this task:
I've got a Enum, which is named "myEnum" (MyEnum isn't known by the function) I Need to get the int value of a Value of myEnum
Example:
A Programmer named its enum "myEnum":
public enum myEnum
{
foo = 1,
bar = 2,
}
my function should do the following: Get the Value of "foo" of "myEnum" by string
function should opened by:
public int GetValueOf(string EnumName, string EnumConst)
{
}
so when Programmer A opens it by :
int a = GetValueOf("myEnum","foo");
it should return 1
and when Programmer B has an Enum named "mySpace", wants to return "bar" with Value 5
int a = GetValueOf("mySpace","bar")
should return 5
how can i do this?
To get the value of enum we can simply typecast it to its type. In the first example, the default type is int so we have to typecast it to int. Also, we can get the string value of that enum by using the ToString() method as below.
Enum. GetName(Type, Object) Method is used to get the name of the constant in the specified enumeration that has the specified value. Syntax: public static string GetName (Type enumType, object value);
Use the Object. values() method to get an array containing the enum's values. Use square brackets to access the array at the specific index and get the value.
Enums don't have methods for iteration, like forEach() or iterator(). Instead, we can use the array of the Enum values returned by the values() method.
You can use Enum.Parse to do this, but you'd need the fully qualified type name of the Enum type, ie: "SomeNamespace.myEnum"
:
public static int GetValueOf(string enumName, string enumConst)
{
Type enumType = Type.GetType(enumName);
if (enumType == null)
{
throw new ArgumentException("Specified enum type could not be found", "enumName");
}
object value = Enum.Parse(enumType, enumConst);
return Convert.ToInt32(value);
}
Also note that this uses Convert.ToInt32
instead of a cast. This will handle enum values with underlying types which are not Int32
. This will still throw an OverflowException
, however, if your enum has an underlying value outside of the range of an Int32
(ie: if it's a ulong as the value is >int.MaxValue
).
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