Cannot convert list to observablecollection
WebDec 25, 2011 · 3 Answers. Sorted by: 20. The DataSource and the Items properties are unrelated. The fact that you set the first property doesn't mean that you will get anything in the second. For example if you check the number of items it will be 0: ChkLsBxItemsToDraw.Items.Count. You could add elements to the Items property: … WebJun 22, 2024 · The ObservableCollection constructor takes an IEnumerable so there is no need to copy all list elements to an array which is then copied to the ObservableCollection. – ckuri Jun 22, 2024 at 16:40 I agree with you, but i encounter the same error times ago and without the "toArray" you got the error, with it the error …
Cannot convert list to observablecollection
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WebYou cannot set the converter on the collection itself, because it would get the collection as input. ... You simply treat the value parameter for the Convert method as a collection. Here is an example of Converter for a collection: public class DataConvert : IValueConverter { public object Convert(object value, Type targetType, object parameter ... WebJun 26, 2014 · First, the core issue: The ObservableCollection used by Silverlight is NOT the standard WPF one. If you look at the two assemblies, you'll see they have much different interfaces. Here is the one used by windows/the server:
WebWhen you added the reference to your site then under DataType ==> Collection Type you specified System.Array, (which is default as well), that is why your proxy is returning you an array instead of list.. When adding reference to the web service go to advance and specify System.Collection.Generic.List and you will get the same return type as in your contract. WebOct 28, 2008 · Even though I'm late, I wanna share a quick enhancement to Junior's answer: let the developer define the converter function used to convert observable collection objects from the source collection to the destination one.. Like the following: public static ObservableCollection ToObservableCollection(this …
WebSep 17, 2013 · If you had a List of a known reference type, it could work, even though the type parameter is not object: var list = new List (); var observable = new … WebSep 24, 2012 · How to convert IEnumerable to ObservableCollection? (5 answers) Closed 2 years ago. I want to get all the places which are active for bid. I tries this but I'm getting null. testObservableList = testObservableList.Where ( x => x.IsActiveForBid) as ObservableCollection; c# linq casting lambda Share Improve this question …
WebMay 7, 2013 · 7. The Observable Collection constructor will take an IList or an IEnumerable. If you find that you are going to do this a lot you can make a simple …
http://duoduokou.com/csharp/33794507210996973607.html dia\\u0027s story clothWebAug 19, 2013 · If you're working with non-generic IEnumerable but know the type of elements, you can do it this way: public ObservableCollection Convert (IEnumerable original) { return new ObservableCollection (original.Cast ()); } To make things even more simple you can create an Extension method out of it. public static … citing multiple sources with same author apaWebMar 20, 2011 · Just make it a List. Using linq. ObservableCollection is imperative. Linq is declarative. The two cannot be used together without extra help. Imperative code … dia und video show erstellenWebFeb 7, 2024 · Approach 1: List. In ViewModel, we need to create List of Actors. private List _listOfActors; public List ListOfActors { get { return _listOfActors; } set { SetProperty(ref _listOfActors, value); } } … citing multiple sources in text harvardWebJun 3, 2024 · Or convert the List to Observablecollection type just as tareqelzoubi mentioned : ObservableCollection myList = new ObservableCollection (list); And if you want to add list data from service, you can just convert it to the ObservableCollection list as above method or iterate, add each item in turn. citing multiple sources in apaWebJul 29, 2009 · None of the examples I have found have worked for me, I have cobbled together the below code and it seems to work. I have a hierarchy that is created by deserializing an XML file and I am able to loop through all the objects in the hierarchy, but you can adapt this to just loop through one ObservableCollection and get the objects … dia underground trainWebList doesn't inherit from Collection. Plain and simple. Unless List provides an operator to implicitly convert to/from Collection, you can't do it. I would actually suggest returning List if you can, as I believe the rules go something like this: Accept as a parameter the least constrictive interface possible. citing multiple sources from same author mla