How AsEnumerable works?

Question

AsEnumerable is converting something into something(generic or not). There is picture below:

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I wonder that how AsEnumerable converting string array to string[] but DataTable to EnumerableRowCollection<DataRow> ?

Are you sure that `ver` is not produced by calling [this method](http://msdn.microsoft.com/en-us/library/system.data.datatableextensions.asenumerable%28v=vs.100%29.aspx)? Because `ear` is produced by calling [this *other* method](http://msdn.microsoft.com/en-us/library/bb335435.aspx). — Jon, Aug 24 '12 at 08:21
It is because they are different extension methods - one for datatable and other for enumerable — JleruOHeP, Aug 24 '12 at 08:21
have you seen this: http://stackoverflow.com/questions/2013846/why-use-asenumerable-rather-than-casting-to-ienumerablet — BizApps, Aug 24 '12 at 08:24

score 3 · Accepted Answer · answered Aug 24 '12 at 08:23

3

They are different Extension methods. One is DataTableExtensions.AsEnumerable and other is Enumerable.AsEnumerable

answered Aug 24 '12 at 08:23

JleruOHeP

score 1 · Answer 2 · answered Aug 24 '12 at 08:24

1

Because both AsEnumerable are different

With String array, AsEnumerable returns IEnumerable<T>.

answered Aug 24 '12 at 08:24

Tilak

2 Answers2