Radio buttons group XAML

Question

I have six radio buttons in XAML, and I would like to create two groups. It seems that WPF has no radiobutton group element, so how can I do this?

Answer 1

您必须为元素指定GroupName。

 <RadioButton GroupName="Group1"/>

Answer 2

BitKFu's suggestion of using the GroupName property will work, but there is a caveat. If you use group names, the scope for RadioButton groups becomes different.

If you create a UserControl with 3 RadioButtons all with a GroupName of "MyRadioGroup" and place 2 such controls in your Window , you will notice that all 6 RadioButton s act like they are one group.

This happens because when the RadioButton is updating other RadioButton s it normally only adjusts RadioButton s that are children of its immediate parent DependencyObject . However, when the GroupName is used the scope expands to the root Visual ( Window , for example) and it will adjust all RadioButton s under that root that have the same GroupName .

So sometimes it's better to just separate them with an extra panel.