How to search a RadTreeView which have XML DataBinding in WPF ?

[Parul]

I am having a RadTreeView in my screen in which data is coming from XML datasource in wpf.

I am using XmlDataProvider and HierarchicalDataTemplate for displaying the data.
Now i have a search textbox above this RadTreeView which filters the nodes present in this RadTreeview.

Kindly let me know the procedure which filters the nodes of my RadTreeView (parent and child both).

Thanks !!!!

[Tina Stancheva]

Hello Parul,

We will need more time to prepare a solution for your scenario. I will get back to you tomorrow the latest.

In the meantime you can examine this demo illustrating how to implement filtering in the RadTreeView for Silverlight. You can implement the same logic in WPF as well.

Regards,
Tina Stancheva
the Telerik team

[Tina Stancheva]

Hello Parul,

Since you need to filter the RadTreeView ItemsSource collection, it is best to create data classes, which to wrap the XML data objects. This will allow you to filter the data class collections similarly to what the Filter/Search/Sort demo in Silverligth demonstrates.

Also, you will need to create a temp collection, on which to apply the filters, while keeping the original so that you can set it back as RadTreeView ItemsSource when no filtering is applied.

Please examine the attached solution and let us know if it works for you.

Best wishes,
Tina Stancheva
the Telerik team

[gans]

Hi Tina,

Do you have an example that does the filtering like you did that can work for any level of Hierarchy?  I think the example would work only upto 2 level. 

[Petar Mladenov]

Hello Gans,

 Currently, we don;t have such example. Having the mentioned project in this thread as a base, you have to create a recursive function that filters the ViewModels hierarchy starting from the deepest levels and ending with the root levels.

All the best,
Petar Mladenov
the Telerik team