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

some offtopic: if you want to do it more readable write

foreach ( DataRow r in tbl.Rows ) yield return r;

as

foreach (DataRow row in tbl.Rows) 
{
    yield return row;
}

now to your problem.. try this

    public static IEnumerable GetEnumerator(this DataTable table)
    {
        return table.Rows.Cast();
    }