icons in treelistview

[rahaf]

Hello,

We're currently checking out your WPF TreeListView control. We currently use WinForms.
I was wondering if it was possible to configure the TreeListView to display icons besides each node in the TreeListView, similar to what is shown in the attached image.

A followup to this question is whether or not it is possible to Drag and Drop nodes and whether or not it is possible to customize individual cells in the TreeListView.

Note - I saw there's another WPF control called TreeView which has the above capabilities, however, we need the TreeListView type control.

Thanks.
Rahaf

[Stefan Dobrev]

Hi rahaf,

Please find my answers in order:

• You can use the GridViewImageColumn as you first column and display whatever image you want in that column.
• Currently drag and drop is not built-in into the control. We will enable it officially in our next service pack release. It will also be available sooner in one of our next latest internal builds.

Kind regards,
Stefan Dobrev
the Telerik team

[rahaf]

Hello Stefan,

Thank you for your prompt reply!

I have a few more questions regarding the capabilities of the TreeListView:

1. Is it possible to populate this control with unbound data? In our application the treelist is dynamically modified (i.e. nodes are added or removed) according to various system events. Once the TreeListView is populated, is it possible to modify it without the need to rebuild it from scratch?
2. Our treelist may contain various in place editors, such as a progress bar. Does the TreeListView support this functionality of customizing individual cells editors?
3. With regard to performance, how many nodes (or records) can the TreeListView handle without it compromising its performance?

Thanks,

Rahaf

[Stefan Dobrev]

Hello rahaf,

Here are my answers to your questions:

• We do support unbound mode. You can check out this online example.
• Check out the columns example for various options for editing. You can also always use a templated column.
• We have done some performance profiling and the current implementation can handle large amounts of data. As always there are areas for improvements and corner cases we can optimize. If you hit so performance issues please do share them with us.

Regards,
Stefan Dobrev
the Telerik team