从逗号分隔的字符串中按值过滤ObservableCollection

Question

I am trying to filter an existing ObservableCollection by looking at one of its properties that holds a comma separated string, which I want to match against a string value and create a new ObservableCollection with matching results from this.

I have the following code at the moment but am a little stuck on how to use lambda correctly to do so

string s = "some string";

ObservableCollection<MyCollection> oc = myDataservice.ExistingObservableCollection.FindAll(x => x.KommaSeperatedString.Contains(s));

Not sure how to go about getting the desired result

As result i would like a new ObservableCollection with all objects that have a matching string in the ExistingObservableCollections comma separated string.

Any help is appreciated as always.

Answer 1

var list = oc.All(s=> s.KommaSeperatedString.Contains(s)).ToList<MyCollection>();

如果要构造另一个ObservableCollection ：

var observableCollection = new ObservableCollection<MyCollection>(myList);

Answer 2

You are comparing against a string, you should try to convert it to a list first. Lists are far more flexible for this kind of filtering.

s.Split(',').ToList();