Question

I have a two dimensional array and I need to convert it to a List (same object). I don’t want to do it with for or foreach loop that will take each element and add it to the List. Is there some other way to do it?

Answer 1

To convert double[,] to List<double>, if you are looking for a one-liner, here goes

double[,] d = new double[,]
{
    {1.0, 2.0},
    {11.0, 22.0},
    {111.0, 222.0},
    {1111.0, 2222.0},
    {11111.0, 22222.0}
};
List<double> lst = d.Cast<double>().ToList();

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But, if you are looking for something efficient, I’d rather say you don’t use this code.
Please follow either of the two answers mentioned below. Both are implementing much much better techniques.