C#: Abstract classes need to implement interfaces?
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Published on 2010-04-24T16:12:51Z
Indexed on
2010/04/25
4:43 UTC
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My test code in C#:
namespace DSnA
{
public abstract class Test : IComparable
{
}
}
Results in the following compiler error:
error CS0535: 'DSnA.Test' does not implement interface member
'System.IComparable.CompareTo(object)'
Since the class Test is an abstract class, why does the compiler require it to implement the interface? Shouldn't this requirement only be compulsory for concrete classes?
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