1
You can read Articles here in C-SharpCorner for knowledge improvement. To have a good start-up use the below site:
http://www.tutorialspoint.com/
0
I love "Headfirst books". Its good for you if you purchase Headfirst C# by O'Really publication. Really helpful.
You can get sample of books and codes etc from 'http://www.headfirstlabs.com/'.
Good Luck..
0
From activities you have to get knowledge and also search from internet and some website like c#Corner.com and codeproject.com