c# - Returning the existence of a key in a dict by searching key substring

Question

I have a dictionary of string people (key) and string addresses (value). I want to have an if statement that returns true if any key in my dictionary contains the substring 'anders'. Is there any way to do this? I have tried dict.ContainsKey("anders") but that just returns true if any key is explicitly named 'anders'. I would like it to return true even if the key is anderson or andersen. I know this is a pretty strange case but i need it for a purpose.

Thanks

Answer 1

You'll have to iterate over the collection and check each one. The LINQ Any method makes this fairly simple:

dict.Keys.Any(k => k.Contains("anders"))