I want to hide(not remove) the small icon of Delete button in the xaml just like <telerik:RadScheduleView x:Name="ScheduleView" IsCanDelete="False"/>,but I don't know how can I achieve it. Can you help me?
Since the delete button is located in the control template of the appointment item, you need to modify the vertical and the horizontal control templates of the appointment.
I created and attached a sample project that shows how to set the Visibility="Collapsed" property to the delete button in the two control templates, take a look at it. The project uses Implicit Styles to customize the theme.