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To answer your question: from my point of view your suggestion is almost an imperative if one applies the MVVM pattern on comboboxes. Michael Schlegel Hi Mark, Great posts, I read your post about MVVM List Box filtering, what i´m looking for is something in between.If i for instance have an application with a number of Combo boxes bound with a Collection View and i want the selected item in one of them to affect a filter in another Combo Box. I´ve added a filter by just using my Collection View.c#,wpf,button,mouseevent if you want to use same Click handler for two button, try this: private void btn Dashboard_Click(object sender, Routed Event Args e) Also make sure each button has a Name property...wpf,alignment,label To have such a result, your grid must be really small.
What I wanted to do was bind the items in the Combo Box to a list in my View Model and to track the currently selected item.
The approach I went with uses a Collection View which is a class included with .
NET that encapsulates a list and the concept of a current item as well as supporting the INotify Property Changed interface. I set the Is Sychronized With Current Item to true to allow us to track the current item on the Items Source.
Filter = methodname, in the Current Changed eventhandler of the Collection View. Do i need to use a Obeservable Collection instead of Collection View?
It runs the filter method allright but the View wont update even with my Collection View. I really liked Collection View approach so would be nice i could stick to that.I’m not sure yet whether using Collection View is a better approach than the alternatives I have seen which bind the Selected Value or Selected Item property.
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