Asp.net class reference and method worth calling

For the reference type, clr can find its corresponding methodtable through typehandle in the heap, locate the method code of this type, compile and execute it. However, the value type is assigned to the stack and there is no typehandle. How does it locate the method table?

...

Public class mystruct

{

Private int;

Private int B;

Public void mymethod ()

{

...

}

}

Public static void main ()

{

Mystruct m = new mystruct ();

M. tostring (); // Obtain the method table by packing and execute the method.

M. mymethod (); // It is not boxed here, but how can I find a method table?

}