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How To Change the Fold Size

Updated on Sep 15, 2025

To change the fold size you can use the FoldSize property of RadBook. It is of type Size. Here is an example below:

RadBook Fold Size

Example 1: Changing the fold size

XAML
	<telerik:RadBook x:Name="RadBook1" 
	                    Margin="50"
	                    FoldSize="150,150" RightPageIndex="1">
	    <telerik:RadBookItem Background="Red">
	        <StackPanel>
	            <TextBlock FontSize="36" Text="Page 1" />
	            <Button Content="Click Me" />
	        </StackPanel>
	    </telerik:RadBookItem>
	    <telerik:RadBookItem Background="BlueViolet">
	        <StackPanel>
	            <TextBlock HorizontalAlignment="Right" 
	                        FontSize="36"
	                        Text="Page 2" />
	            <Image Width="320" 
	                    Height="240"
	                    Source="Koala.jpg" />
	        </StackPanel>
	    </telerik:RadBookItem>
	    <telerik:RadBookItem Background="RosyBrown">
	        <TextBlock FontSize="36" Text="Page 3" />
	    </telerik:RadBookItem>
	    <telerik:RadBookItem Background="Chocolate">
	        <TextBlock HorizontalAlignment="Right" 
	                    FontSize="36"
	                    Text="Page 4" />
	    </telerik:RadBookItem>
	</telerik:RadBook>

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