C#: Array.Sort method for double?

I have an array ( double ) : ox_test with a known number of elements.

when I code :

Array.Sort(ox_test);

and then, just to see if the array it's sorted :

for (int y = 1; y <= ox_test.Length; y++)
      MessageBox.Show(".x: " + ox_test[y]);
 

.. I get ... 0, 0, 0, 0, 0 ( if the number of elements was 5 ). Please help, thank you!

So i modified the both for loops:

for (int y = 0; y < ox_test.Length; y++)

            MessageBox.Show(".x: " + ox_test[y]);
 

// HERE i get the values not sorted but != 0

        Array.Sort(ox_test);
 

for (int y = 0; y < ox_test.Length; y++)

            MessageBox.Show(".x s: " + ox_test[y]);
 

// HERE i get only 0 values

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