title: Get class name of enum by its value
body: <p>I have some enum</p>
  
  <pre><code>public enum MyEnum 
  { 
      Field1,
      Field2
  }
  </code></pre>
  
  <p>and pass value in function</p>
  
  <pre><code>DoSmth(MyEnum.Field1);
  </code></pre>
  
  <p>How can i get classname "MyEnum" in that function</p>
  
  <pre><code>void DoSmth(Enum enumArg) 
  {
      string className = Magic(enumArg); // className = "MyEnum"
  }
  </code></pre>