I tried and now it works.. but I didn't know why is now working.. I can't reproduce it :-(
I need definitly work with different versions if something is not working..
PS: Are you familiar with breakpoints and inspecting variables (i.e. the interactive debugger of Visual Studio)?
No I didn't know.. as I said.. I'm absolute novice.. I don't have any programming skills.. It's my first try.. (in my past I did work with HTML & CSS, but this is anything else but not a programming language..)