Review Code

[Hofknecht]

Would be great if you can review the code
every little thing counts, feel free to list everything here.

E.g.
-code style, when you break the line you better make the dot in the next line than at the end of the previous one
-we should do more memory leak checks e.g. are there any events that we don't hang out? see here https://stackoverflow.com/questions/3662842/how-do-events-cause-memory-leaks-in-c-sharp-and-how-do-weak-references-help-miti

we would be very happy if you would like to take a look at the code and give us feedback