Change the Default Height of a TreeViewItem

This tutorial will show you how to change the default height of a treeview.

Here is a simple treeview declaration:

• XAML

<telerik:RadTreeView> 
    <telerik:RadTreeViewItem Header="Sport Categories"> 
        <telerik:RadTreeViewItem Header="Football"> 
            <telerik:RadTreeViewItem Header="Futsal"/> 
            <telerik:RadTreeViewItem Header="Soccer"/> 
        </telerik:RadTreeViewItem> 
    </telerik:RadTreeViewItem> 
</telerik:RadTreeView> 

In order to change the default height of the treeview item, you need to perform the following steps:

1. Add an appropriate style in the resources:

   • XAML

       <Style TargetType="telerik:RadTreeViewItem" x:Key="TreeViewItemStyle"> 
           <Setter Property="MinHeight" Value="50"></Setter> 
       </Style> 

2. Set the ItemContainerStyle of the RadTreeView and the RadTreeViewItem.

   • XAML

       <telerik:RadTreeView ItemContainerStyle="{StaticResource TreeViewItemStyle}"> 
           <telerik:RadTreeViewItem Header="Sport Categories" ItemContainerStyle="{StaticResource TreeViewItemStyle}"> 
               <telerik:RadTreeViewItem Header="Football" ItemContainerStyle="{StaticResource TreeViewItemStyle}"> 
                   <telerik:RadTreeViewItem Header="Futsal" ItemContainerStyle="{StaticResource TreeViewItemStyle}"/> 
                   <telerik:RadTreeViewItem Header="Soccer" ItemContainerStyle="{StaticResource TreeViewItemStyle}"/> 
               </telerik:RadTreeViewItem> 
           </telerik:RadTreeViewItem> 
       </telerik:RadTreeView> 

And here is the result: