C# quickest way to shift array

Question

How can I quickly shift all the items in an array one to the left, padding the end with null?

For example, [0,1,2,3,4,5,6] would become [1,2,3,4,5,6,null]

Ed

Answer 1

Try this! using Linq. No need of second Array.

        var i_array = new int?[] {0, 1, 2, 3, 4, 5, 6 };

        i_array = i_array.Select((v, k) => new { v = v, k = k }).
            Where(i => i.k > 0).Select(i => i.v).ToArray();

        Array.Resize(ref i_array, i_array.Length + 1);

Output: [0,1,2,3,4,5,6] would become [1,2,3,4,5,6,null]