c# while循环，范围0 - 5

我是c#的新手，并试图通过使用范围为0 - 5的while循环来创建验证，我的问题是，当使用此范围时，它也接受字符串字符，我怎么能停止这一点，只允许整数0 - 5?

我的代码到目前为止

   static void Main()
    {
        int Rateing1, Rateing2;
         Console.Write("Please rate from 0 - 5:   ");
         Rateing1 = valid_rating();
         Console.Write("'nPlease rate from 0 - 5:    ");
         Rateing2 = valid_rating();
         Console.WriteLine("'nRateing1 is {0}", Rateing1);
         Console.WriteLine("Rateing2 is {0}", Rateing2);
     }
    static int valid_rating()
          {
            int rating;
            int.TryParse(Console.ReadLine(), out rating);
                while (rating < 0 || rating > 5)
                     {
                       Console.Write("'nInvalid Input, please input an integer from 0 - 5");
                       Console.Write("'nPlease enter new rating:   ");
                       int.TryParse(Console.ReadLine(), out rating);
                     } 
            return rating;
          }

while (!int.TryParse(Console.ReadLine(), out rating) || rating < 0 || rating > 5)
{
    Console.WriteLine();
    Console.WriteLine("Invalid Input, please input an integer from 0 - 5");
    Console.Write("Please enter new rating:   ");
}