You should stick to OpenGL and avoid directX. Interesting is that OpenGL works similar on other platforms and even other languages. Thats why mastering OpenGL is a precious skill, so take the time to understand its resources and buffering architecture.
Here is a outstanding article about
OpenGL in .NET - Getting Started.
That you tried "Nothing" before asking is a bit a shame. Tell this your parents to get my opion about that. ;-)
Without some effort you wont succeed in life. Others will get the best and leave for you the rest...