Dynamically updating treeview node wpf

Rated 3.82/5 based on 682 customer reviews

I have code that works, but because of the amount of recursion that takes place it takes 2-3 minutes to check for all of the files on the c: drive and create the tree.What I would like to do instead is something like this: You could try avoiding recursion by using a simple loop and a stack.When I click right button on specific node "Entry" to add a new node "Source" under Entry (call "Add" method), I add a new "Source" object under Entry successfully, but I can't see this new node on treeview. In my case changing of type from IList to Observable Collection didn't refreshed GUI. I tested both solutions for my tree view, because I faced the same problem.Here Person object has only one string property Full Name Now if I click on Change Name button, which simply renames the selected Person, I will not be able to see the change in my Tree View. 339&parid=root Have a look at this solution as well View Source_without_Refresh_for_Faster_Filtering_in_Silverlight Hope it helps.Here in this case we need to call the Refresh method of Collection View Source. And these following links explain that what you are looking for for all the input; I think I finally figured out how to do what I was looking for here: An unhandled exception of type ' System.

The entire risk arising out of the use or performance of the sample scripts and documentation remains with you.

This may or may not improve perf but you'll at least avoid a View-by-Using-the-View Mode Look at demo 2 in the same article when creating a treeview item, attach a dummy object On expansion of each treeview item, delete the dummy child if it is in and add actual children if at all it has.

Its very clearly explained in the above quoted article IF you are not very familiar wtih tree view , then you can first take this tutorial and this tutorial describes how to use treelist.

If we update any properties of a contained class, it doesn’t raise any notifications. If I have an Observable Collection of Person object and it is bind to a Tree View.

If I add or remove person object from the Observable Collection I will be able to see the changes in my Tree View also.

Leave a Reply