SL中怎样获取RadioButton的值

[zhangfengyi]

在Silverlight中如何获取单选钮的值

[xingjunli]

示例如下：

      <StackPanel x:Name="radioGroup">
                <RadioButton GroupName="a" Content="AAAAAAA" Click="RadioButton_Click" />
                <RadioButton GroupName="a" Content="BBBBBBB" Click="RadioButton_Click" />
                <RadioButton GroupName="a" Content="CCCCCCC" Click="RadioButton_Click" />
                <RadioButton GroupName="a" Content="DDDDDDD" Click="RadioButton_Click" />
            </StackPanel>

RadioButton currRadioButton;
        private void RadioButton_Click(object sender, RoutedEventArgs e)
        {
            currRadioButton = sender as RadioButton;
            if (currRadioButton != null && currRadioButton.IsChecked.Value)
            {
                MessageBox.Show(currRadioButton.Content.ToString());
            }
        }

当然你也可以循环radioGroup.Children 判断currRadioButton是否选中返回选中RadioButton

[yzone]

[Quote=引用 1 楼 xingjunli 的回复:]
示例如下：
XML code<StackPanelx:Name="radioGroup"><RadioButtonGroupName="a" Content="AAAAAAA" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="BBBBBBB" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="CCCCCCC" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="DDDDDDD" Click="RadioButton_Click"/></StackPanel>
C# codeRadioButton currRadioButton;privatevoid RadioButton_Click(object sender, RoutedEventArgs e)
{
currRadioButton= senderas RadioButton;if (currRadioButton!=null&& currRadioButton.IsChecked.Value)
{
MessageBox.Show(currRadioButton.Content.ToString());
}
}   

当然你也可以循环radioGroup.Children 判断currRadioButton是否选中返回选中RadioButton
[/Quote]
支持

[zhangfengyi]

在我这怎么不行，一点击按钮报错，IsChecked有错，注释掉，还是报错，是不是我的机器有问题

[xingjunli]

贴一下代码看看

[zhangfengyi]

//if (currRadioButton != null && currRadioButton.IsChecked.value)
//{
//MessageBox.Show(currRadioButton.Content.ToString());
MessageBox.Show("出错了");
//}
这样就能输出，是什么原因？

[xingjunli]

我的代码是没问题的在SL3.0的环境中测试过的

[zhangfengyi]

我怀疑是我的机器的环境出了问题

[zhangfengyi]

什么原因呢，卡在这里，下边的不法做

[gghlkk]

if (currRadioButton != null && currRadioButton.IsChecked.value)

如果currRadioButton == null 还会继续执行currRadioButton.IsChecked.value

null.IsChecked.value肯定会报错

改成
if (currRadioButton != null）
if (currRadioButton.IsChecked.value）
{}

[zhangfengyi]

CardManage2.RadioButton”并不包含“IsChecked”的定义,怎么会没有IsChecked属性

[zhangfengyi]

RadioButton前台可以设置IsChecked属性，后台设置显示不包含“IsChecked”，这是怎么回事，应该很简单的问题

[jv9]

[Quote=引用 1 楼 xingjunli 的回复:]
示例如下：
XML code<StackPanelx:Name="radioGroup"><RadioButtonGroupName="a" Content="AAAAAAA" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="BBBBBBB" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="CCCCCCC" Click="RadioButton_Click"/><RadioButtonGroupName="a" Content="DDDDDDD" Click="RadioButton_Click"/></StackPanel>
C# codeRadioButton currRadioButton;privatevoid RadioButton_Click(object sender, RoutedEventArgs e)
{
currRadioButton= senderas RadioButton;if (currRadioButton!=null&& currRadioButton.IsChecked.Value)
{
MessageBox.Show(currRadioButton.Content.ToString());
}
}   

当然你也可以循环radioGroup.Children 判断currRadioButton是否选中返回选中RadioButton
[/Quote]

支持，正解。