xaml - UWP XAML 文本框字体颜色不会改变

Question

也许我在这里遗漏了一些东西......但是我的文本框的文本输入总是黑色的。我以为您只需更改 Foreground 属性，文本颜色就会改变。

这是我的文本框。在此示例中，我还需要做什么才能使字体变为蓝色？还有一个 IsColorFontEnabled 属性...但这不会改变任何东西。

<TextBox TextWrapping="Wrap" AcceptsReturn="True" 
         FontSize="{ThemeResource TextStyleLargeFontSize}"
         Foreground="Blue" ScrollViewer.VerticalScrollBarVisibility="Auto"/>

Answer 1

在这种情况下，Foreground 属性仅在 TextBox 不在焦点时才起作用，给它固定的宽度和高度，在里面放一些文本，当您在框外单击时，颜色将变为蓝色

如何在聚焦状态下改变它？获取默认的 TextBox 样式: https://msdn.microsoft.com/en-us/library/windows/apps/mt299154.aspx?f=255&MSPPError=-2147217396

将其复制并粘贴到控件的资源中，用 x:Key 命名，然后应用于 TextBox。现在一切都应该看起来一样。找到一个专注的状态() 并更改它，以便您拥有:

<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Blue" />

或者如果你想继承它并且在 Focused 和 Unfocused 状态下具有相同的值:

<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{TemplateBinding Foreground}" />
                                        </ObjectAnimationUsingKeyFrames>

毕竟它看起来像:

<Page.Resources>
    <Style TargetType="TextBox" x:Key="TestStyle">
        <Setter Property="MinWidth" Value="{ThemeResource TextControlThemeMinWidth}" />
        <Setter Property="MinHeight" Value="{ThemeResource TextControlThemeMinHeight}" />
        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundAltHighBrush}" />
        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundChromeDisabledLowBrush}" />
        <Setter Property="SelectionHighlightColor" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
        <Setter Property="BorderThickness" Value="{ThemeResource TextControlBorderThemeThickness}" />
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
        <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
        <Setter Property="ScrollViewer.HorizontalScrollMode" Value="Auto" />
        <Setter Property="ScrollViewer.VerticalScrollMode" Value="Auto" />
        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Hidden" />
        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Hidden" />
        <Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False" />
        <Setter Property="Padding" Value="{ThemeResource TextControlThemePadding}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TextBox">
                    <Grid>
                        <Grid.Resources>
                            <Style x:Name="DeleteButtonStyle" TargetType="Button">
                                <Setter Property="Template">
                                    <Setter.Value>
                                        <ControlTemplate TargetType="Button">
                                            <Grid x:Name="ButtonLayoutGrid" BorderBrush="{ThemeResource TextBoxButtonBorderThemeBrush}"
                                              BorderThickness="{TemplateBinding BorderThickness}"
                                              Background="{ThemeResource TextBoxButtonBackgroundThemeBrush}">
                                                <VisualStateManager.VisualStateGroups>
                                                    <VisualStateGroup x:Name="CommonStates">
                                                        <VisualState x:Name="Normal" />
                                                        <VisualState x:Name="PointerOver">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="GlyphElement"
                                                       Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Pressed">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ButtonLayoutGrid"
                                                       Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="GlyphElement"
                                                       Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltChromeWhiteBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Disabled">
                                                            <Storyboard>
                                                                <DoubleAnimation Storyboard.TargetName="ButtonLayoutGrid"
                                         Storyboard.TargetProperty="Opacity"
                                         To="0"
                                         Duration="0" />
                                                            </Storyboard>
                                                        </VisualState>
                                                    </VisualStateGroup>
                                                </VisualStateManager.VisualStateGroups>
                                                <TextBlock x:Name="GlyphElement"
                            Foreground="{ThemeResource SystemControlForegroundChromeBlackMediumBrush}"
                            VerticalAlignment="Center"
                            HorizontalAlignment="Center"
                            FontStyle="Normal"
                            FontSize="12"
                            Text="&#xE10A;"
                            FontFamily="{ThemeResource SymbolThemeFontFamily}"
                            AutomationProperties.AccessibilityView="Raw"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </Setter.Value>
                                </Setter>
                            </Style>
                        </Grid.Resources>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="HeaderContentPresenter"
                                             Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseMediumLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundElement"
                                           Storyboard.TargetProperty="Background">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledTransparentBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement"
                                           Storyboard.TargetProperty="Background">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement"
                                           Storyboard.TargetProperty="BorderBrush">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextContentPresenter"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Normal" />
                                <VisualState x:Name="PointerOver">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement"
                                           Storyboard.TargetProperty="BorderBrush">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightChromeAltLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundElement"
                                           Storyboard.TargetProperty="Opacity">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundHoverOpacity}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Focused">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PlaceholderTextContentPresenter"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlPageTextChromeBlackMediumLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundElement"
                                           Storyboard.TargetProperty="Background">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundChromeWhiteBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundElement"
                                           Storyboard.TargetProperty="Opacity">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundFocusedOpacity}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="BorderElement"
                                           Storyboard.TargetProperty="BorderBrush">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement"
                                           Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{TemplateBinding Foreground}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentElement"
                                           Storyboard.TargetProperty="RequestedTheme">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Light" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="ButtonStates">
                                <VisualState x:Name="ButtonVisible">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="DeleteButton"
                                           Storyboard.TargetProperty="Visibility">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Visibility>Visible</Visibility>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="ButtonCollapsed" />
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="Auto" />
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="*" />
                        </Grid.RowDefinitions>
                        <Border x:Name="BackgroundElement"
            Grid.Row="1"
            Background="{TemplateBinding Background}"
            Margin="{TemplateBinding BorderThickness}"
            Opacity="{ThemeResource TextControlBackgroundRestOpacity}"
            Grid.ColumnSpan="2"
            Grid.RowSpan="1"/>
                        <Border x:Name="BorderElement"
            Grid.Row="1"
            BorderBrush="{TemplateBinding BorderBrush}"
            BorderThickness="{TemplateBinding BorderThickness}"
            Grid.ColumnSpan="2"
            Grid.RowSpan="1"/>
                        <ContentPresenter x:Name="HeaderContentPresenter"
                      x:DeferLoadStrategy="Lazy"
                      Visibility="Collapsed"
                      Grid.Row="0"
                      Foreground="{ThemeResource SystemControlForegroundBaseHighBrush}"
                      Margin="0,0,0,8"
                      Grid.ColumnSpan="2"
                      Content="{TemplateBinding Header}"
                      ContentTemplate="{TemplateBinding HeaderTemplate}"
                      FontWeight="Normal" />
                        <ScrollViewer x:Name="ContentElement"
                  Grid.Row="1"
                  HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
                  HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
                  VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
                  VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
                  IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
                  IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
                  IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
                  Margin="{TemplateBinding BorderThickness}"
                  Padding="{TemplateBinding Padding}"
                  IsTabStop="False"
                  AutomationProperties.AccessibilityView="Raw"
                  ZoomMode="Disabled" />
                        <ContentControl x:Name="PlaceholderTextContentPresenter"
                  Grid.Row="1"
                  Foreground="{ThemeResource SystemControlPageTextBaseMediumBrush}"
                  Margin="{TemplateBinding BorderThickness}"
                  Padding="{TemplateBinding Padding}"
                  IsTabStop="False"
                  Grid.ColumnSpan="2"
                  Content="{TemplateBinding PlaceholderText}"
                  IsHitTestVisible="False"/>
                        <Button x:Name="DeleteButton"
            Grid.Row="1"
            Style="{StaticResource DeleteButtonStyle}"
            BorderThickness="{TemplateBinding BorderThickness}"
            Margin="{ThemeResource HelperButtonThemePadding}"
            IsTabStop="False"
            Grid.Column="1"
            Visibility="Collapsed"
            FontSize="{TemplateBinding FontSize}"
            MinWidth="34"
            VerticalAlignment="Stretch"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Page.Resources>

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <TextBox TextWrapping="Wrap" AcceptsReturn="True" Style="{StaticResource TestStyle}" Width="100" Height="100"
     FontSize="12" Foreground="Blue"
     ScrollViewer.VerticalScrollBarVisibility="Auto"/>
</Grid>