How many elements of array are not null ?

Question

An array is defined of assumed elements like I have array like String[] strArray = new String[50];.

Now from 50 elements only some elements are assigned and remaining are left null then I want the number of assigned elements.

Like here only 30 elements are assigned then I want that figure.

Answer 1

Using LINQ you can try

int count = strArray.Count(x => x != null);

Answer 2

Use LINQ:

int i = (from s in strArray where !string.IsNullOrEmpty(s) select s).Count();

Answer 3

You can use Enumerable.Count:

String strArray[] = new String[50]
...
int result = strArray.Count(s => s != null);

Count iterates the enumerable array and counts the elements to which the specified predicate applies.