You can set checkboxes to the needed nodes in the dropdown depending on your criteria. For instance if you set different values, you can check by the value of the node and set checkboxes when needed. In the demo that I recommended in my previous post, we use the Level
property for that criteria but after looking at the example that you provided it would be better to use a different property (that could be the Value
for example) .
All the best,
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed