Hello James,
All you need to do in order to set the height of RadTreeView items is:
1.Add appropriate style in the resources:
<UserControl.Resources>
<Style TargetType="
telerik:RadTreeViewItem" x:Key="
TreeViewItemStyle">
<Setter Property="
MinHeight" Value="250"></Setter>
</Style>
</UserControl.Resources>
2. Set ItemContainerStyle property of the RadTreeView:
<telerik:RadTreeView
ItemContainerStyle="{StaticResource TreeViewItemStyle}" .../>
I hope that this answers your question.
Greetings,
Boryana
the Telerik team