xaml round corner button code example
Example: wpf round button
<Button>
<Button.Resources>
<Style TargetType="Border">
<Setter Property="CornerRadius" Value="5"/>
</Style>
</Button.Resources>
</Button>
<Button>
<Button.Resources>
<Style TargetType="Border">
<Setter Property="CornerRadius" Value="5"/>
</Style>
</Button.Resources>
</Button>