Getting Querystring value in c# from the Url

Questions
1

how to find the querystring value from a Url. Example

http://localhost:233/?country=DE

from this Url how can i get the querystring value. Plaese help me.

Thanks in advance

 

 

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/36185-getting-querystring-value-in-c-from-the-url