Why can you use LINQ to cast an enumerable using Select, but not Cast<>?

Asked Jan 20 '20 at 06:09

Active Jan 20 '20 at 06:14

Viewed 56 times

I was trying to create an enumerable containing a series of doubles from 0 to X. My first attempt was:

Enumerable.Range(0, 10).Cast<double>();

But this gives the error

Unable to cast object of type 'System.Int32' to type 'System.Double'.

If I can't cast int32 to double, then why does the following work?:

Enumerable.Range(0, 10).Select(i => (double) i);

edited Jan 20 '20 at 06:14

asked Jan 20 '20 at 06:09

Loocid

1

Do these answer your question? [Explicit/implicit cast operator fails when using LINQ's .Cast() operator](https://stackoverflow.com/q/13316718/3744182) and [Why does a Linq Cast operation fail when I have an implicit cast defined?](https://stackoverflow.com/q/808725/3744182). – dbc Jan 20 '20 at 06:14
Does this answer your question? [Why does a Linq Cast operation fail when I have an implicit cast defined?](https://stackoverflow.com/questions/808725/why-does-a-linq-castt-operation-fail-when-i-have-an-implicit-cast-defined) – Nguyễn Văn Phong Jan 20 '20 at 06:15
1

Thanks guys, didn't see those. They answer my question. – Loocid Jan 20 '20 at 06:16

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