List string c#

- List string c# example
- List string c# initialize
- List string c# add item
- List string c# remove duplicates
- List string c# contains
- List string c# add
- List string c# sort
- List string c# foreach
- List string c# orderby
- List string c# distinct
- List string c# concat
- List string c# remove item
- List string c# initialize with values
- List string c# methods
- List string c# select