Convert List<int?> to List<int> [duplicate]

Question

Suppose, I have a list of Nullable Integer's & I want to convert this list into List<int> which contains only values.

Can you please help me to solve this.

Answer 1

Filter out the null values, get the numbers using Value property and put them into a list using ToList:

yourList.Where(x => x != null).Select(x => x.Value).ToList();

You can also use Cast

yourList.Where(x => x != null).Cast<int>().ToList();

Answer 2

Have you tried:

List<int> newList = originalList.Where(v => v != null)
                                .Select(v => v.Value)
                                .ToList();

?

Answer 3

Try:

 var numbers1 = new List<int?>() { 1, 2, null};
 var numbers2 = numbers1.Where(n => n.HasValue).Select(n => n.Value).ToList();