Declaratively
This tutorial will walk you through the common task of populating RadListBox with RadListBoxItems declaratively.
Here is a regular RadListBox declaration without items:
Declaring RadListBox
<telerik:RadListBox Width="200">
</telerik:RadListBox>
Populating RadListBox with items
<telerik:RadListBox Width="200">
<telerik:RadListBoxItem Content="Australia" />
<telerik:RadListBoxItem Content="Brazil" />
<telerik:RadListBoxItem Content="Canada" />
<telerik:RadListBoxItem Content="China" />
<telerik:RadListBoxItem Content="England" />
<telerik:RadListBoxItem Content="Germany" />
</telerik:RadListBox>
