title: Converting Char to Uppercase From User Inputted Data
body: <p>I am trying to create a program for a hotel where the user is to enter a character (either S, D, or L) and that is supposed to correspond with a code further down the line. I need help converting the user input (no matter what way they enter it) to be converted to uppercase so I can then use an <code>if</code> statement to do what I need to do. 
  My code so far is the following:</p>
  
  <pre><code>public static void Main()
  {
      int numdays;
      double total = 0.0;
      char roomtype, Continue;
  
      Console.WriteLine("Welcome to checkout. We hope you enjoyed your stay!");
  
      do
      {
          Console.Write("Please enter the number of days you stayed: ");
          numdays = Convert.ToInt32(Console.ReadLine());
  
          Console.WriteLine("S = Single, D = Double, L = Luxery");
          Console.Write("Please enter the type of room you stayed in: ");
          roomtype = Convert.ToChar(Console.ReadLine());
  
  
       **^Right Her is Where I Want To Convert To Uppercase^**
  
          total = RoomCharge(numdays,roomtype);
          Console.WriteLine("Thank you for staying at our motel. Your total is: {0}", total);
  
          Console.Write("Do you want to process another payment? Y/N? : ");
          Continue = Convert.ToChar(Console.ReadLine());
  
  
      } while (Continue != 'N');
  
      Console.WriteLine("Press any key to end");
      Console.ReadKey();
  }
  
  public static double RoomCharge(int NumDays, char RoomType)
  {
      double Charge = 0;
  
      if (RoomType =='S')
          Charge = NumDays * 80.00;
  
      if (RoomType =='D')
          Charge= NumDays * 125.00;
  
      if (RoomType =='L')
          Charge = NumDays * 160.00;
  
      Charge = Charge * (double)NumDays;
      Charge = Charge * 1.13;
  
      return Charge;
  } 
  </code></pre>