Question

I want create a ToggleButton with round corners by using my CornerRadius property. As you can see in the code below, i already added a cornerRadius property to my xaml ToggleButton to pass a radius value. But i can’t find a way to use this value in c# to create a ToggleButton with round corners.

C#

public static readonly DependencyProperty CornerRadiusProperty =
    DependencyProperty.Register("CornerRadius", typeof(int), typeof(MyToggleButton), 
    new PropertyMetadata(0)); //Default CornerRadius = 0

public int CornerRadius
{
   get { return (int)GetValue(CornerRadiusProperty); }
   set { SetValue(CornerRadiusProperty, value); }
}

XAML

<custom:MyToggleButton Height="25" Content="Test" CornerRadius="15" />

So how can i create a toggleButton with round corners by using my property “CornerRadius”?
Would be great if someone could help me.

Answer 1

I wouldn’t create a new control just in order to make it round – that’s what templates are for and that’s what makes WPF so great! You could simply define a new template for the ToggleButton.

If you insist on inheriting your own control, you’ll need to define for it a new default style that will also include a control template that will have a border that uses your CornerRadius property. You can base your new template on the default control template for ToggleButton.