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Silverlight treeview observablecollection not updating

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Any existing grouping, filtering and sorting functionalities will apply to the new entry.

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NET objects or objects associated with Web Services and Web properties) and XML data.Content Controls such as Button and Items Controls such as List Box and List View have built-in functionality to enable flexible styling of single data items or collections of data items.Sort, filter, and group views can be generated on top of the data.Windows Presentation Foundation (WPF) data binding provides a simple and consistent way for applications to present and interact with data.Elements can be bound to data from a variety of data sources in the form of common language runtime (CLR) objects and XML.The figure demonstrates the following fundamental WPF data binding concepts: a binding source.

For example, if you are displaying some underlying XML data in a List Box using data binding, you are binding your List Box to the XML data.

The Update Source Trigger property of the binding determines what triggers the update of the source.

The dots of the right arrows in the following figure illustrate the role of the Update Source Trigger property: If the Update Source Trigger value is Property Changed, then the value pointed to by the right arrow of Two Way or the One Way To Source bindings gets updated as soon as the target property changes.

Or you may not want to enable users to update the source data.

You can control this by setting the Mode property of your Binding object.

As described in the last section, the direction of the data flow is determined by the value of the Mode property of the binding.