#869 – Example of Catching an Exception Thrown by the .NET Framework

Below is a complete example that shows how we might catch an exception thrown by the .NET Framework.

Our Dog class builds a list of all dogs created and allows you to retrieve a dog by index.

    public class Dog
    {
        private static List<Dog> _allDogs = new List<Dog>();

        public string Name { get; set; }
        public int Age { get; set; }

        // Standard constructor
        public Dog(string name, int age)
        {
            Name = name;
            Age = age;
            _allDogs.Add(this);
        }

        public static Dog DogByIndex(int index)
        {
            return _allDogs[index];
        }
    }

We can protect code that calls the DogByIndex method with a try-catch statement.

            try
            {
                Dog d1 = new Dog("Kirby", 15);
                Dog d2 = new Dog("Ruby", 3);

                // Later, get dog by index
                Dog someDog = Dog.DogByIndex(2);  // Oops--index of 2 is wrong!
            }
            catch (ArgumentOutOfRangeException exc)
            {
                Console.WriteLine("The dog index you used is out of range!");
                Console.WriteLine(exc.Message);
            }

869-001

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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