我无法在运行时在子窗口上应用样式。我创建了两个样式，一个是chrome，一个是没有chrome。我想要做的是在媒体播放器全屏模式下禁用拖动子窗口并按下退出按钮（正常模式）启用拖动子窗口。 我的代码如下所示：
void Content_FullScreenChanged(object sender, EventArgs e)
{
if (App.Current.Host.Content.IsFullScreen)
{
ObjChildMediaPlayer.Style = Application.Current.Resources["TestStyle"] as Style;
}
else
{
ObjChildMediaPlayer.Style = Application.Current.Resources["TestBasicStyle"] as Style;
}
ObjChildMediaPlayer.UpdateLayout();
}
全屏拖动正在禁用但是当我按下退出按钮时它不会拖动。我希望子窗口以正常模式拖动。
答案 0 :(得分：0)
TestStyle：
<Style x:Key ="TestStyle" TargetType="controls:ChildWindow">
<Setter Property="IsTabStop" Value="True" />
<Setter Property="TabNavigation" Value="Cycle" />
<Setter Property="HorizontalAlignment" Value="Center" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<GradientStop Color="#FFA3AEB9" Offset="0" />
<GradientStop Color="#FF8399A9" Offset="0.375" />
<GradientStop Color="#FF718597" Offset="0.375" />
<GradientStop Color="#FF617584" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="OverlayBrush">
<Setter.Value>
<SolidColorBrush Color="#7F000000" />
</Setter.Value>
</Setter>
<Setter Property="OverlayOpacity" Value="1" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="controls:ChildWindow">
<Grid x:Name="Root">
<Grid.Resources>
<Style x:Key="ButtonStyle" TargetType="Button">
<Setter Property="Background" Value="#FF1F3B53" />
<Setter Property="Foreground" Value="#FF000000" />
<Setter Property="Padding" Value="3" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFA3AEB9" Offset="0" />
<GradientStop Color="#FF8399A9" Offset="0.375" />
<GradientStop Color="#FF718597" Offset="0.375" />
<GradientStop Color="#FF617584" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid HorizontalAlignment="Center" VerticalAlignment="Center" Width="15" Height="14" Background="#02FFFFFF" x:Name="grid">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="CommonStates">
<vsm:VisualState x:Name="Normal" />
<vsm:VisualState x:Name="MouseOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz2" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz1" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation Duration="0" Storyboard.TargetName="X" Storyboard.TargetProperty="Opacity" To="0.95" />
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetName="X" Storyboard.TargetProperty="Opacity" To="0.85" />
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz2" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz1" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="X_Fuzz0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetName="X" Storyboard.TargetProperty="Opacity" To="0.5" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Path HorizontalAlignment="Center" Margin="0,-1,0,0" Width="9" Fill="#14C51900" Stretch="Fill" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" x:Name="X_Fuzz2" Stroke="#14C51900" Height="8" VerticalAlignment="Center" Opacity="1" RenderTransformOrigin="0.5,0.5" Visibility="Collapsed">
<Path.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleX="1.3" ScaleY="1.3" />
</TransformGroup>
</Path.RenderTransform>
</Path>
<Path HorizontalAlignment="Center" Margin="0,-1,0,0" Width="9" Fill="#1EC51900" Stretch="Fill" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" x:Name="X_Fuzz1" Stroke="#1EC51900" Height="8" VerticalAlignment="Center" Opacity="1" RenderTransformOrigin="0.5,0.5" Visibility="Collapsed">
<Path.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleX="1.1" ScaleY="1.1" />
</TransformGroup>
</Path.RenderTransform>
</Path>
<Path HorizontalAlignment="Center" Margin="0,-1,0,0" Width="9" Fill="#FFC51900" Stretch="Fill" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" x:Name="X_Fuzz0" Stroke="#FFC51900" Height="8" VerticalAlignment="Center" Opacity="1" Visibility="Collapsed" />
<Path HorizontalAlignment="Center" Margin="0,-1,0,0" Width="9" Fill="#FFFFFFFF" Stretch="Fill" Data="F1 M 6.742676,3.852539 L 9.110840,1.559570 L 8.910645,0.500000 L 6.838379,0.500000 L 4.902832,2.435547 L 2.967285,0.500000 L 0.895020,0.500000 L 0.694824,1.559570 L 3.062988,3.852539 L 0.527832,6.351563 L 0.689941,7.600586 L 2.967285,7.600586 L 4.897949,5.575195 L 6.854004,7.600586 L 9.115723,7.600586 L 9.277832,6.351563 L 6.742676,3.852539 Z" x:Name="X" Height="8" VerticalAlignment="Center" Opacity="0.7">
<Path.Stroke>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF313131" Offset="1" />
<GradientStop Color="#FF8E9092" Offset="0" />
</LinearGradientBrush>
</Path.Stroke>
</Path>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Grid.Resources>
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="WindowStates">
<vsm:VisualState x:Name="Open">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="Overlay" Storyboard.TargetProperty="Opacity">
<EasingDoubleKeyFrame KeyTime="0" Value="0" />
<EasingDoubleKeyFrame KeyTime="00:00:00.3" Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="ContentRoot" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleX">
<SplineDoubleKeyFrame KeyTime="0" Value="0" />
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
<SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="1" />
<SplineDoubleKeyFrame KeySpline="0,0,0.5,1" KeyTime="00:00:00.45" Value="1.05" />
<SplineDoubleKeyFrame KeyTime="00:00:00.55" Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="ContentRoot" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleY">
<SplineDoubleKeyFrame KeyTime="0" Value="0" />
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
<SplineDoubleKeyFrame KeyTime="00:00:00.4" Value="1" />
<SplineDoubleKeyFrame KeySpline="0,0,0.5,1" KeyTime="00:00:00.45" Value="1.05" />
<SplineDoubleKeyFrame KeyTime="00:00:00.55" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Closed">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="Overlay" Storyboard.TargetProperty="Opacity">
<EasingDoubleKeyFrame KeyTime="0" Value="1" />
<EasingDoubleKeyFrame KeyTime="00:00:00.3" Value="0" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="ContentRoot" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleX">
<SplineDoubleKeyFrame KeyTime="00:00:00.2" Value="1" />
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="1.05" />
<SplineDoubleKeyFrame KeyTime="00:00:00.45" Value="0" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="0" Storyboard.TargetName="ContentRoot" Storyboard.TargetProperty="(RenderTransform).(Children)[0].ScaleY">
<SplineDoubleKeyFrame KeyTime="00:00:00.2" Value="1" />
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="1.05" />
<SplineDoubleKeyFrame KeyTime="00:00:00.45" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Grid x:Name="Overlay" HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="0" Background="{TemplateBinding OverlayBrush}" Opacity="{TemplateBinding OverlayOpacity}" />
<Grid x:Name="ContentRoot" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}" RenderTransformOrigin="0.5,0.5" Height="{TemplateBinding Height}" Width="{TemplateBinding Width}">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform />
<SkewTransform />
<RotateTransform />
<TranslateTransform />
</TransformGroup>
</Grid.RenderTransform>
<Border BorderThickness="1" CornerRadius="2" BorderBrush="#14000000" Background="#14000000" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="-1" />
<Border BorderThickness="1" CornerRadius="2.25" BorderBrush="#0F000000" Background="#0F000000" HorizontalAlignment="Stretch" Margin="-2" VerticalAlignment="Stretch" />
<Border BorderThickness="1" CornerRadius="2.5" BorderBrush="#0C000000" Background="#0C000000" HorizontalAlignment="Stretch" Margin="-3" VerticalAlignment="Stretch" />
<Border BorderThickness="1" CornerRadius="2.75" BorderBrush="#0A000000" Background="#0A000000" HorizontalAlignment="Stretch" Margin="-4" VerticalAlignment="Stretch" />
<Border Background="#FFFFFFFF" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" CornerRadius="2">
<Border CornerRadius="1.5" Margin="1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE5E8EB" Offset="1" />
<GradientStop Color="#FFF6F8F9" Offset="0" />
</LinearGradientBrush>
</Border.Background>
<Grid IsHitTestVisible="True" >
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition />
</Grid.RowDefinitions>
<Border x:Name="Chrome" Width="Auto" BorderBrush="#FFFFFFFF" BorderThickness="0,0,0,1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,0.528" StartPoint="0.5,0">
<GradientStop Color="#FFE5E8EB" Offset="1" />
<GradientStop Color="#FFFEFEFE" Offset="0" />
</LinearGradientBrush>
</Border.Background>
<Grid Height="Auto" Width="Auto">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="30" />
</Grid.ColumnDefinitions>
其他款式没有镀铬休息，一切都一样。