Where to learn DotNet Commands

I am new to UI Path. i can able to understand all the activities in UI path

My struggle is understanding the dotnet comments or vb expressions like in dictionary values, split value expressions and all.

Example: new Dictionary(of String, String) from {{“key1”, “value1”},{“key2”,“value2”}}

Where can i learn those things?

Thanks,
Jeeva

@Jeevabalan

You’ll be able use these kind of commands if you’re familiar with c# or vb.net. I suggest you to learn c#(arrays, collections, dictionaries etc.) And you can apply these concepts in UiPath.