How To Change the Fold Size

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

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>