Test if Convert.ChangeType will work between two types

Question

This is a follow-up to this question about converting values with reflection. Converting an object of a certain type to another type can be done like this:

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Answer 1

Checking the method Convert.ChangeType in reflector I found this in the static constructor:

ConvertTypes = new Type[] { 
        typeof(Empty), typeof(object), typeof(DBNull), typeof(bool), typeof(char), typeof(sbyte), typeof(byte), typeof(short), typeof(ushort), typeof(int), typeof(uint), typeof(long), typeof(ulong), typeof(float), typeof(double), typeof(decimal), 
        typeof(DateTime), typeof(object), typeof(string)
     };

In the end, this method is just checking either if the source is implementing IConvertible or if the target is one of the ConvertTypes above. So your method should look something like this (very rough):

return (ConvertTypes.Contains(toType) || typeof(IConvertible).IsAssignableFrom(fromType));