title: C# ReadLine problem
body: <p>what i want to do is that when people using my program hit enter without anything in there it does not cause an error here is part of the program:  </p>
  
  <pre><code>Console.WriteLine("4.-Ya no quiero jugar &gt;.&lt;");
  int opc = Convert.ToInt16(Console.ReadLine());
  
  switch (opc)
  {
      case 1:
          Console.WriteLine("omg");
          break;
  
      case 2:
          Console.WriteLine("wtf");
          break;
  
      default:
          Console.WriteLine("Cant do that  >.>");
          Console.ReadKey();
          break;
  
      etc.
  }</code></pre>
  
  <p>the thing is im using integers,i tried to do this</p>
  
  <pre><code>string opc1=console.readline();
  
  if (opc =="")
  {
      console.writeline("nope,try again");
  }
  else
  { // Brace was omitted in original - Jon
      int opc = Convert.ToInt16(Console.ReadLine());
  
      switch (opc)
  
      blah blah.</code></pre>
  
  <p>and different combinations of it >.&lt; and default does not work for that</p>
  
  <p>i hope some one can help me solve it >.&lt;</p>