Why does foreach fail to find my GetEnumerator extension method?

Question

I\'m trying to make some code more readable. For Example foreach(var row in table) {...} rather than foreach(DataRow row in table.Rows) {...}.

Answer 1

The object collection in a foreach must implement System.Collections.IEnumerable or System.Collections.Generic.IEnumerable.

If you have a very strong desire to enable this then you could create a wrapper class which implements IEnumerable and has a pointer to you DataTable. Alternatively, you could inherit DataTable in a new class and implement IEnumerable.

Code readability is most often personal preference. I personally find your changes to the foreach statement less readable (but I am sure there are many on SO who agree with you).