change session timeout in web.config programatically

Question

I have a requirement where i have to change connection string and session time out programatically, both need to be written in web.config and saved on hard disk. I could change connection string as below but struggling to accomplish the same for session timeout, could that be done someways?

 var configuration = WebConfigurationManager.OpenWebConfiguration("~");
 var section = configuration.GetSection("connectionStrings");
 section.ConnectionStrings["MyConnectionString"].ConnectionString = "Data Source=...";
 configuration.Save();

Answer 1

This short question-answer string shows how to set the timeout programmatically . Like others have said, I'm not sure why you'd be required to do this but if you are, you are.