Remove single item from a list inside a dictionary

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?

>Solution :

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.