Is there a way to make the .NET Cast<T> extension method use user defined implicit cast operators? [duplicate]

StackOverflow https://stackoverflow.com/questions/23436918

Pregunta

When I define an implicit cast operator, then attempt to invoke it on a whole collection of objects at once using the Cast<T> extension method, I get an InvalidCastException. Is there any workaround for this problem?

¿Fue útil?

Solución

No, Cast treats each item as Object and casts it to the target type, so it can't use user-defined conversions because conversion are resolved statically. Instead you can just do this:

collection.Select(x => (YourType)x)

Otros consejos

No.

Cast is a CLR method. It does not incorporate C# specific binding rules because it is independent of any specific CLR language. Implicit conversions are specific to a few .NET languages.

You have to create your own version of Cast.

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