Wpf treeview observablecollection not updating
The Text Block control in line 20 of Figure 4 uses the Description property of the Employee Type class.The Tree View control has its Item Template property set to the key of the last resource in your Resources section.Listing 2 shows the new code where, after creating an Employee object, you add another employee to the Managed Employees property.Now that you have your three-level structure built into your classes, you are ready to hook up this three-level structure to your Tree View.What’s important is how you structure the classes into which your data will be placed.
Set the Item Template property in your Hierarchical Data Template to the key name of the Data Template.
Sheriff is a Business Solutions Architect with Fairway Technologies, Inc. There are many examples of using the Windows Presentation Foundataion (WPF) Tree View that you can find on the Web, however, most of them only show you how to go to two levels. This is where it’s vital to understand exactly how the Hierarchical Data Templates work.