Question

I need an int array, from an int value.

The int value 123456 converts to int[] {1,2,3,4,5,6}.

Is there any better solution than this:

using System.Diagnostics;

namespace test
{
#if DEBUG
    [DebuggerDisplay("{GetDebuggerDisplay()}")]
#endif
    public class IntArray
    {

#if DEBUG
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
#endif
        private int _value;
#if DEBUG
        [DebuggerBrowsableAttribute(DebuggerBrowsableState.Never)] 
#endif
        private int[] _valueArray;

        public IntArray(int intValue)
        {
            Value = intValue;
        }

        public int Value
        {
            get { return _value; }
            set
            {
                _value = value;
                _valueArray = null;
                _valueArray = CreateIntArray(value);
            }
        }

        public int[] Array
        {
            get { return _valueArray; }
        }


        private string GetDebuggerDisplay()
        {
            return string.Format("Value = {0}", Value);
        }

        private static int[] CreateIntArray(int value)
        {
            string s = value.ToString();
            var intArray = new int[s.Length];

            for (int i = 0; i < s.Length; i++)
                intArray[i] = int.Parse(s[i].ToString());

            return intArray;
        }
    }
}

Any help and criticism would be appreciated.

Answer 1

Another approach:

    public static int[] GetInts(this int value)
    {            
        if (value == 0)
            return new int[] { 0 };
        else
        {
            int val = value;

            List<int> values = new List<int>();
            while (Math.Abs(val) >= 1)
            {
                values.Add(Math.Abs(val % 10));
                val = val / 10;
            }

            values.Reverse();
            return values.ToArray();
        }
    }

and use it:

    int value = 123456;
    int[] values = value.GetInts();

Edit: improved to work with negative numbers and zero