c# add to list on create code example

Example 1: how to add data in list in c#

List<geo_tag> abc = new List<geo_tag>();
geo_tag tag = new geo_tag();
tag.latitude = 111;
tag.longitude = 122;
tag.unit = "SSS";
abc.Add(tag);

Example 2: how to add to a list c#

var list = new List<string>();
list.Add("Hello");