Question

这适用于Windows Phone 7应用程序，这是我正在使用的模板代码：

<Style x:Key="RadioButtonStyle1" BasedOn="{StaticResource PhoneRadioButtonCheckBoxBase}" TargetType="RadioButton">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="RadioButton">
                    <Grid Background="Transparent">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="MouseOver"/>
                                <VisualState x:Name="Pressed">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Collapsed</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="PressedDarkCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="PressedLightCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="CheckMark">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneRadioCheckBoxCheckBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Collapsed</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledDarkCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledLightCheckBackground">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="CheckMark">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneRadioCheckBoxCheckDisabledBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentContainer">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="CheckStates">
                                <VisualState x:Name="Checked">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="CheckMark">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Unchecked"/>
                                <VisualState x:Name="Indeterminate"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Grid Margin="{StaticResource PhoneTouchTargetLargeOverhang}">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="32"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>
                            <Ellipse x:Name="EnabledCheckBackground" Fill="{TemplateBinding Background}" HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" VerticalAlignment="Center" Width="32"/>
                            <Canvas HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" Opacity="{StaticResource PhoneDarkThemeOpacity}" VerticalAlignment="Center" Width="32">
                                <Ellipse x:Name="PressedDarkCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxPressedBrush}" Height="32" Visibility="Collapsed" Width="32"/>
                                <Ellipse x:Name="DisabledDarkCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxDisabledBrush}" Height="32" Visibility="Collapsed" Width="32"/>
                            </Canvas>
                            <Canvas HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" Opacity="{StaticResource PhoneLightThemeOpacity}" VerticalAlignment="Center" Width="32">
                                <Ellipse x:Name="PressedLightCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxPressedBrush}" Height="32" Stroke="{StaticResource PhoneForegroundBrush}" StrokeThickness="{StaticResource PhoneStrokeThickness}" Visibility="Collapsed" Width="32"/>
                                <Ellipse x:Name="DisabledLightCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxDisabledBrush}" Height="32" Stroke="{StaticResource PhoneDisabledBrush}" StrokeThickness="{StaticResource PhoneStrokeThickness}" Visibility="Collapsed" Width="32"/>
                            </Canvas>
                            <Ellipse x:Name="CheckMark" Fill="{StaticResource PhoneRadioCheckBoxCheckBrush}" HorizontalAlignment="Center" Height="16" IsHitTestVisible="False" Visibility="Collapsed" VerticalAlignment="Center" Width="16"/>
                            <ContentControl x:Name="ContentContainer" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Grid.Column="1" Foreground="{TemplateBinding Foreground}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="12,0,146,-2" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Grid>
                        <Button Content="Play" Margin="0,0,2,-1" HorizontalAlignment="Right" Width="159" Click="PlayButton_Click"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

我想创建一个每个按钮都会使用的点击事件，但是从该事件处理程序中我需要能够识别包含被点击按钮的单选按钮。

Answer 1

可能有“更好”的方法来实现您尝试做的事情，但您可以将传递给点击事件处理程序的sender转换为FrameworkElement然后您可以访问它的DataContext，然后您可以适当地进行投射以获取有关该项目的所需信息。

如何从按钮的单击事件中识别单选按钮，该按钮已包含在该单选按钮的模板中

1 个答案: