Cannot implicitly use enum for integer in C #

Question

I can define an integer enumeration as a value:

public enum FieldType 
{
    Bar = 0,
    Foo = 1
}

Why C # does not allow creating a dictionary with an integer as a key and using the enumeration value when creating:

public Dictionary<int, Type> _fieldMapping = new Dictionary<int, Type>
{
    {FieldType.Bar, null},  # Error in VS
    {FieldType.Foo, null},  # Error in VS
}

I know I can make cast, but I would like to know why enum cannot be converted to int implicitly when it really is an int under the hood.

Answer 1

If you could do this, you would lose half the point of using enumerations in general - the point is to save them as separate types in order to avoid erroneous errors associated with improper use of types.

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, , , . , FieldType , 1 Type -? 1?