this post was submitted on 11 Jul 2024
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Question regarding generic type and Type (self.csharp)
submitted 5 months ago by Cyno to c/csharp
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Let's say I have a method that I want to make generic, and so far it had a big switch case of types.

For an simplified example,

switch (field.GetType()) {
case Type.Int: Method((int)x)...
case Type.NullInt: Method((int?)x)...
case Type.Long: Method((long)x)...

I'd like to be able to just call my GenericMethod(field) instead and I'm wondering if this is possible and how would I go around doing it.

GenericMethod(field)

public void GenericMethod<T>(T field)

Can I use reflection to get a type and the pass it into the generic method somehow, is it possible to transform Type into ?

Can I have a method on the field object that will somehow give me a type for use in my generic method?

Sorry for a confusing question, I'm not really sure how to phrase it correctly, but basically I want to get rid of switch cases and lots of manual coding when all I need is just the type (but that type can't be passed as generic from parent class)

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[–] GetOffMyLan 1 points 4 months ago

You can actually use the dynamic type here for late binding of overloads. You will get a runtime error for unknown types though.

You essentially define the function overloaded for each type. Then call the function with a dynamic and the runtime will figure out what method to call