Wpf listview observablecollection not updating

An Observable Collection is a dynamic collection of objects of a given type.Objects can be added, removed or be updated with an automatic notification of actions. So you're absolutely right, it MUST be in my codebehind. for example, if you List Box is binded to a Observable Collection, the Data Context inside the List Box will be a Person object and not the parent's datacontext.

What we need is a list that notifies any destinations of changes to its content, and fortunately, WPF provides a type of list that will do just that.So far in this tutorial, we have mostly created bindings between UI elements and existing classes, but in real life applications, you will obviously be binding to your own data objects.This is just as easy, but once you start doing it, you might discover something that disappoints you: Changes are not automatically reflected, like they were in previous examples.I would be very thankful if anyone could point out what i am doing wrong.Observable Collection event are not fired when an item is changed, only when it is added, removed or moved.When an object is added to or removed from an observable collection, the UI is automatically updated.

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