Question

WPF 怎么判断哪个radioButton被选中

Answer 1

前台xaml：

<Grid>
<StackPanel>
<RadioButton x:Name="rbA" Content="选项A" GroupName="group1"></RadioButton>
<RadioButton x:Name="rbB" Content="选项B" GroupName="group1"></RadioButton>
</StackPanel>
</Grid>

后台：
放在构造函数中。

rbA.Checked += new RoutedEventHandler(radio_Checked);
rbB.Checked += new RoutedEventHandler(radio_Checked);
rbA.Unchecked += new RoutedEventHandler(radio_Unchecked);
rbB.Unchecked += new RoutedEventHandler(radio_Unchecked);

void radio_Unchecked(object sender, RoutedEventArgs e)
{
RadioButton btn = sender as RadioButton;
if (btn == null)
return;
if (btn.Name == "rbA")
{

}
if (btn.Name == "rbB")
{

}
}

void radio_Checked(object sender, RoutedEventArgs e)
{
// 同UnChecked判断。
}