C# code for data scraping website with javascript

Problem: *There are a number of websites that I need to collect data from. However, simple HTML parsing is not suitable to extract the information, as the data is updated via Javascript functions. *My software skills are a little rough, so I need help at getting the source from the webpage after everything is loaded. *i would also like to call a Javascript function on one of these websites passing different parameters. Deliverable: *C# source code that supports scraping webiste with javascript *This code will be used to produce a standalone executable