C# - Multiple generic types in one list

Question

This is probably not possible, but I have this class:

public class Metadata<DataType> where DataType : struct
{
    private DataType mDataType;
}

There's more to it, but let's keep it simple. The generic type (DataType) is limited to value types by the where statement. What I want to do is have a list of these Metadata objects of varying types (DataType). Such as:

List<Metadata> metadataObjects;
metadataObjects.Add(new Metadata<int>());
metadataObjects.Add(new Metadata<bool>());
metadataObjects.Add(new Metadata<double>());

Is this even possible?

Answer 1

public abstract class Metadata
{
}

// extend abstract Metadata class
public class Metadata<DataType> : Metadata where DataType : struct
{
    private DataType mDataType;
}