Remove single item from a list inside a dictionary

Question

This feel really simple but I tried many scripts and nothing works. I have an interface with Id field - named ITrust, And I have a dictionary - Dictionary<string, Ilist<ITrust>>. Now I'm trying to remove a single object from the list inside the dictionary but can't find the right script.

I tried some things like that:

dictionaryName[keyName].Remove(x => x.Id == Id);

But it raise an exception -

Cannot convert lambda expression to type ITrust because it is not a delegate type

Any one know the right script or maybe if there is a problem with might I try to do?

Answer 1

First off, that's a compilation error, not an exception. And second, stop using IList<> if you don't understand what it means.

If you use a normal List<>, you have a List.RemoveAll function that does exactly what you want.