MVVM: Populate a view (with listbox) when an item from another view (with listbox) is selected

Question

I have a list of Topics, and for each topic there are some Examples. What I want to be able to do is that when a topic is selected then I will populate another view with all Examples for that selected topic. I'm still learning MVVM so not sure how to implement such.

Answer 1

Hi, What you need in the background is a viewmodel bound to the view. In that viewmodel calss you need something like a dictionary or just few observable collections for topics and examples. Once you have that you can bind the topics list to the listBox on the view. And have a property "Selected Item" bound to the "SelectedItem" of the list. When "Selected Item" is set run a switch case and for each case you can have seconf listbox's itemsource set to the right choice of example's list.

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Answer 2

Hi, here you have an Master/Detail with WPF sample using CollecitonView object.

Un saludo. Miguel A. González <br/>
Regards, Miguel A. González <br/>
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