Dictionary search with Linq

Question

we can search dictionary like

var dictionary = new Dictionary<string,string>();
dictionary.Keys.Where( key => key.Contains("a")).ToList();

but it return list. i want that linq should return true or false. so what would be the right code that search dictionary with linq. please guide.

Answer 1

Use Any instead of Where:

dictionary.Keys.Any( key => key.Contains("a"));