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    Wpf listview binding not updating

    The concept of data binding is explained in detail in another part of this tutorial, but generally speaking it's about separating data from layout.So, let's try binding some data to a List View: We populate a list of our own User objects, each user having a name and an age. The item is deleted from the collection but the List View is not reflecting it.The app has to be restarted to see that the item is deleted.The following example will show you why we need these two things: Try running it for yourself and watch how even though you add something to the list or change the name of one of the users, nothing in the UI is updated.The example is pretty simple, with a User class that will keep the name of the user, a List Box to show them in and some buttons to manipulate both the list and its contents.

    Similarly, changes made by the user in a UI element can be reflected in the data object.The way data is displayed is separated from the management of the data.A connection, or binding, between the UI and a data object allows data to flow between the two.There are two different scenarios that you may or may not want to handle when dealing with data source changes: Changes to the list of items and changes in the bound properties in each of the data objects.How to handle them may vary, depending on what you're doing and what you're looking to accomplish, but WPF comes with two very easy solutions that you can use: The Observable Collection and the INotify Property Changed interface.

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