Possible to load an Enum based on a string name?
OK, I don't think the title says it right... but here goes:
I have a class with about 40 Enums in it. i.e:
Class Hoohoo
{
public enum aaa : short
{
a = 0,
b = 3
}
public enum bbb : short
{
a = 0,
b = 3
}
public enum ccc : short
{
a = 0,
b = 3
}
}
Now say I have a Dicti开发者_JS百科onary of strings and values, and each string is the name of above mentioned enums:
Dictionary<string,short>{"aaa":0,"bbb":3,"ccc":0}
I need to change "aaa" into HooBoo.aaa to look up 0. Can't seem to find a way to do this since the enum is static. Otherwise I'll have to write a method for each enum to tie the string to it. I can do that but thats mucho code to write.
Thanks, Cooter
You'll have to use Reflection to get the underlying enum type:
Type t = typeof(Hoohoo);
Type enumType = t.GetNestedType("aaa");
string enumName = Enum.GetName(enumType, 0);
If you want to get the actual enum value, you can then use:
var enumValue = Enum.Parse(enumName, enumType);
Use
aaa myEnum =(aaa) Enum.Parse(typeof(aaa), "a");
You want to convert a string -> enum? This should help.
Just keep in mind that Enum.Parse isn't strongly typed... I reckon that will be a real limitation in your scenario. As you can see from Ngu's example you'd have to cast the output.
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