CODEWITHSUNDEEP
c#genericsexpression
core
core

Reputation: 869

How to get instance of T of an Expression<Func<T, TK>>

Is it possible to get the instance of TModel from Expression in the following method?

public void FooBar<TModel, TProperty> MyMethod(
    Expression<Func<TModel, TProperty>> expression) 
    where TModel : ViewModel
{
    ViewModel model = ???;
}

Upvotes: 0

Views: 154

Answers (1)

Servy
Servy

Reputation: 203835

There is no instance, and as such there is no way to get the instance that doesn't exist.

The expression is merely an object that says, "If you give me a model, I know how to give you back a property of it." It doesn't actually have a model until you give it a model.

Upvotes: 7

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