小编And*_*ley的帖子

嘿,我正在尝试在WPF中设置按钮样式.我有一个基本风格:

    <Style x:Key="buttonStyle" TargetType="{x:Type ButtonBase}">
    <Setter Property="FontWeight" Value="Bold"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate x:Name="ButtonBaseControlTemplate" TargetType="{x:Type ButtonBase}">
                <Grid SnapsToDevicePixels="True">
                    <Border x:Name="Bd" Background="#9BC4E2" BorderBrush="Black"
                            BorderThickness="3,3,3,3" CornerRadius="7,7,7,7" Padding="5,5,5,5">
                        <ContentPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" x:Name="Content"
                                      ContentSource="Content"
                                      RecognizesAccessKey="True" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                    </Border>
                </Grid>
             <-- Removed triggers here -->
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

但我也需要使用它来切换按钮,只是为了改变IsChecked背景颜色.但是,当我尝试这样时,我无法访问边框来设置背景:

<Style TargetType="{x:Type Button}" BasedOn="{StaticResource buttonStyle}">
</Style>

<Style TargetType="{x:Type ToggleButton}" BasedOn="{StaticResource buttonStyle}">
    <Style.Triggers>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Background"  Value="White"/> <-- Need to specify target name of the border here somehow -->
        </Trigger>
    </Style.Triggers>
</Style>

有什么建议？TA

我有一个关于WPF中的跨线程调用的问题.

            foreach (RadioButton r in StatusButtonList)
        {
            StatusType status = null;
            r.Dispatcher.Invoke(new ThreadStart(() => status= ((StatusButtonProperties)r.Tag).StatusInformation));
            if (AppLogic.CurrentStatus == null || AppLogic.CurrentStatus.IsStatusNextLogical(status.Code))
            {
                SolidColorBrush green = new SolidColorBrush(Color.FromRgb(102, 255, 102));
                r.Dispatcher.Invoke(new ThreadStart(() =>  r.Background = green));
            }
            else
            {
                SolidColorBrush red = new SolidColorBrush(Color.FromRgb(255, 0, 0));
                r.Dispatcher.Invoke(new ThreadStart(() => r.Background = red));
            }
        }

当我运行此代码时,它在第一次迭代时正常工作.但是在第二次迭代期间,该行:

  r.Dispatcher.Invoke(new ThreadStart(() => status= ((StatusButtonProperties)r.Tag).StatusInformation))

导致此异常:

Cannot use a DependencyObject that belongs to a different thread than its parent Freezable.

我尝试了一些解决方案,但我找不到任何可行的方法.

任何帮助赞赏!