error check in one loop

Below is the code I have created for a practice exercise.  My question is:  I was wondering if there was a way to do the error checking that I have done but do it all in one loop instead of two.  Thanks.

using System;

namespace ch8._2
{
      /// <summary>
      /// Summary description for Class1.
      /// </summary>
      class Class1
      {
            /// <summary>
            /// The main entry point for the application.
            /// </summary>
            [STAThread]
            static void Main(string[] args)
            {
                  string enteredData;
                  int number;
                  int quanity;
                  bool isGoodNumber = false;

                  while(!isGoodNumber)
                  {
                        try
                        {

                              Console.WriteLine("Please enter a stock number");
                              enteredData = Console.ReadLine();
                              number = Convert.ToInt32(enteredData);
                              isGoodNumber = true;
                        }
                        catch(FormatException e)
                        {
                              Console.WriteLine("The number must be an integer");
                        }

                  }

                  isGoodNumber = false;

                  while(!isGoodNumber)
                  {
                        try
                        {
                              Console.WriteLine("Please enter a quanity");
                              enteredData = Console.ReadLine();
                              quanity = Convert.ToInt32(enteredData);
                              isGoodNumber = true;
                        }
                        catch(FormatException e)
                        {
                              Console.WriteLine("The number must be an integer");
                        }

                  }
            }
      }
}