Corner Radius in WPF Chromeless Window

Corner Radius indicates the degree to which the corners of the border can be rounded. To create curved borders for the windows, use CornerRadius property of the ChromelessWindow.

The default value is zero, which implies sharp corners

xaml

<syncfusion:ChromelessWindow x:Class="Chromelesswindow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ChromelessWindow" Height="350" Width="525"  CornerRadius="8"  AllowsTransparency="True" 
syncfusion:SkinStorage.VisualStyle="Metro" x:Name="_chromelessWindow"    
xmlns:syncfusion="clr-namespace:Syncfusion.Windows.Shared;assembly=Syncfusion.Shared.WPF"  >
</syncfusion:ChromelessWindow>

c#

_chromelessWindow.CornerRadius = new CornerRadius(8);

vb

_chromelessWindow.CornerRadius = New CornerRadius(8)