How to split a string on the basis of new line in C#

How to split a string on the basis of new line in C#

String str = @"X
Y
Z
P
Q
R"

So resultant string array = X|Y|Z|P|Q|R    
Length = 6

I tried some but could not fixed my issue, please help me to solve my problem!

User "\n" and "\r\n", it will split on both case as will remove blank lines as well.

String[] result = str.Split(new string[] {"\n", "\r\n"},
                             StringSplitOptions.RemoveEmptyEntries);

Or simply try this

String[] result = str.Split(Environment.Newline);