Method Invocation C#

Dot is not an operator.

Well, dot is a lexical element used, among other things, to qualify a member of a type with a reference of an instance which is used as a "this" parameter for instance (non-static) methods or properties or as a class name in case of static members. As in a body of an instance (non-static) method "this" is assumed, "this." can be omitted, which gives you a call or an access to a member without dot. For static members, a declaring class is assumed, so class name with a dot could be used.

That is:

class MyClass {

    void InstanceMethod(/* "this" is passed implicitly */) {
        //working with instance members:
        a = 1; // this.a assumed
        this.b = 2;
        MethodA(/*"this" passed */); //this.Method A assumed
        this.MethodB();
        //
        //working with static members:
        c = 3; //MyClass.c assumed
        MyClass.d = 4;
        MethodC(); //MyClass.MethodC assumed
        MyClass.MethodD();
    } //InstanceMethod

    static void StaticMethod() {
        //working with instance members would not compile;
        //instance is not known (no "this"):
        /*
        a = 1; // this.a assumed
        this.b = 2;
        MethodA(/*"this" passed */); //this.Method A assumed
        this.MethodB();
        */
        //
        //working with static members is only allowed:
        c = 3; //MyClass.c assumed
        MyClass.d = 4;
        MethodC(); //MyClass.MethodC assumed
        MyClass.MethodD();
    } //InstanceMethod

    //instance members:
    int a, b;
    void MethodA() {/*...*/}
    void MethodB() {/*...*/}

    //static members:
    static int c, d;
    static void MethodC() {/*...*/}
    static void MethodD() {/*...*/}

    //...

} //class MyClass

See also my past answer:
What makes static methods accessible?[^].

—SA

var type = typeof(TestClass);
var method = type.GetMethod("Print");
method.Invoke(null,null);

public class TestClass
{
    public static void Print()
    {
        Debug.Write("### Print Method Invoked");
    }
}