Is it possible to declare a class inside a function or another block and place it on the stack?

In C#, it is possible to declare local classes inside methods (starting from C# 7), but they are not stored on the stack because classes are reference types and are always allocated on the managed heap.

For value types that can be stored on the stack, structures (struct) are used. However, declaring a struct inside a method is not allowed — they must be declared at the class or namespace level.

Example of a local class inside a method:

void MyMethod() {
    class LocalClass {
        public int Value;
    }
    var obj = new LocalClass { Value = 10 };
}

But the object obj will be allocated on the heap, not on the stack.