Progressbar foreground color

Question

Does anybody know how to change the foreground color of a WPF-Progressbar. It always seems to be merged with green.

Answer 1

I found it rather useful to override the entire style. You can pull the control template styles of any control with

var yourcontrol = new ProgressBar();
// the control needs to load before it has a template.
yourcontrol.Loaded += (sender,e) => {
    var str = new System.Text.StringBuilder();
    using (var writer = new System.IO.StringWriter(str))
        System.Windows.Markup.XamlWriter.Save(yourcontrol .Template, writer);
    System.Diagnostics.Debug.Write(str);
};
// add it to your main grid, or some control thats loaded on screen.
gridMain.Children.Add(yourcontrol);

The progress style (with some formatting) comes out as the following:

<ControlTemplate x:Key="templateprogress"
                     TargetType="ProgressBar">
        <Grid Name="TemplateRoot"
              SnapsToDevicePixels="True">
            <Grid.Resources>

                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="0,1"
                                     x:Key="brushMagic1">
                    <GradientStop Color="#50FFFFFF"
                                  Offset="0.5385" />
                    <GradientStop Color="#00FFFFFF"
                                  Offset="0.5385" />
                </LinearGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="0,1"
                                     x:Key="brushMagic2">
                    <GradientStop Color="#80FFFFFF"
                                  Offset="0.05" />
                    <GradientStop Color="#00FFFFFF"
                                  Offset="0.25" />
                </LinearGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="1,0"
                                     x:Key="brushGlowRect">
                    <GradientStop Color="#00FFFFFF"
                                  Offset="0" />
                    <GradientStop Color="#60FFFFFF"
                                  Offset="0.4" />
                    <GradientStop Color="#60FFFFFF"
                                  Offset="0.6" />
                    <GradientStop Color="#00FFFFFF"
                                  Offset="1" />
                </LinearGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="1,0"
                                     x:Key="brushLeftDark">
                    <GradientStop Color="#0C000000"
                                  Offset="0" />
                    <GradientStop Color="#20000000"
                                  Offset="0.3" />
                    <GradientStop Color="#00000000"
                                  Offset="1" />
                </LinearGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="1,0"
                                     x:Key="brushRightDark">
                    <GradientStop Color="#00000000"
                                  Offset="0" />
                    <GradientStop Color="#20000000"
                                  Offset="0.7" />
                    <GradientStop Color="#0C000000"
                                  Offset="1" />
                </LinearGradientBrush>
                <RadialGradientBrush RadiusX="1"
                                     RadiusY="1"
                                     x:Key="brushRadialLeftLight"
                                     RelativeTransform="1,0,0,1,0.5,0.5">
                    <GradientStop Color="#60FFFFC4"
                                  Offset="0" />
                    <GradientStop Color="#00FFFFC4"
                                  Offset="1" />
                </RadialGradientBrush>
                <LinearGradientBrush StartPoint="0,1"
                                     EndPoint="0,0"
                                     x:Key="brushCenterLight">
                    <GradientStop Color="#60FFFFC4"
                                  Offset="0" />
                    <GradientStop Color="#00FFFFC4"
                                  Offset="1" />
                </LinearGradientBrush>
                <RadialGradientBrush RadiusX="1"
                                     RadiusY="1"
                                     x:Key="brushRadial1"
                                     RelativeTransform="1,0,0,1,-0.5,0.5">
                    <GradientStop Color="#60FFFFC4"
                                  Offset="0" />
                    <GradientStop Color="#00FFFFC4"
                                  Offset="1" />
                </RadialGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="0,1"
                                     x:Key="brushHighlight1">
                    <GradientStop Color="#90FFFFFF"
                                  Offset="0.5385" />
                    <GradientStop Color="#00FFFFFF"
                                  Offset="0.5385" />
                </LinearGradientBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="0,1"
                                     x:Key="brushHighlight2">
                    <GradientStop Color="#80FFFFFF"
                                  Offset="0.05" />
                    <GradientStop Color="#00FFFFFF"
                                  Offset="0.25" />
                </LinearGradientBrush>
            </Grid.Resources>
            <Rectangle RadiusX="2"
                       RadiusY="2"
                       Fill="{TemplateBinding Panel.Background}" />
            <Border CornerRadius="2,2,2,2"
                    Margin="1,1,1,1"
                    Background="{StaticResource ResourceKey=brushMagic1}" />
            <Border BorderThickness="1,0,1,1"
                    BorderBrush="#80FFFFFF"
                    Margin="1,1,1,1"
                    Background="{StaticResource ResourceKey=brushMagic2}" />
            <Rectangle Name="PART_Track"
                       Margin="1,1,1,1" />
            <Decorator Name="PART_Indicator"
                       Margin="1,1,1,1"
                       HorizontalAlignment="Left">
                <Grid Name="Foreground">
                    <Rectangle Fill="{TemplateBinding TextElement.Foreground}"
                               Name="Indicator" />
                    <Grid Name="Animation"
                          ClipToBounds="True">
                        <Rectangle Name="PART_GlowRect"
                                   Width="100"
                                   Margin="-100,0,0,0"
                                   HorizontalAlignment="Left"
                                   Fill="{StaticResource ResourceKey=brushGlowRect}" />
                    </Grid>
                    <Grid Name="Overlay">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition MaxWidth="15" />
                            <ColumnDefinition Width="0.1*" />
                            <ColumnDefinition MaxWidth="15" />
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition />
                            <RowDefinition />
                        </Grid.RowDefinitions>
                        <Rectangle RadiusX="1"
                                   RadiusY="1"
                                   Name="LeftDark"
                                   Margin="1,1,0,1"
                                   Grid.RowSpan="2"
                                   Fill="{StaticResource ResourceKey=brushLeftDark}" />
                        <Rectangle RadiusX="1"
                                   RadiusY="1"
                                   Name="RightDark"
                                   Margin="0,1,1,1"
                                   Grid.Column="2"
                                   Grid.RowSpan="2"
                                   Fill="{StaticResource ResourceKey=brushRightDark}" />
                        <Rectangle Name="LeftLight"
                                   Grid.Column="0"
                                   Grid.Row="2"
                                   Fill="{StaticResource ResourceKey=brushRadialLeftLight}" />
                        <Rectangle Name="CenterLight"
                                   Grid.Column="1"
                                   Grid.Row="2"
                                   Fill="{StaticResource ResourceKey=brushCenterLight}" />
                        <Rectangle Name="RightLight"
                                   Grid.Column="2"
                                   Grid.Row="2"
                                   Fill="{StaticResource ResourceKey=brushRadial1}" />
                        <Border Name="Highlight1"
                                Grid.ColumnSpan="3"
                                Grid.RowSpan="2"
                                Background="{StaticResource ResourceKey=brushHighlight1}" />
                        <Border Name="Highlight2"
                                Grid.ColumnSpan="3"
                                Grid.RowSpan="2"
                                Background="{StaticResource ResourceKey=brushHighlight2}" />
                    </Grid>
                </Grid>
            </Decorator>
            <Border BorderThickness="{TemplateBinding Border.BorderThickness}"
                    CornerRadius="2,2,2,2"
                    BorderBrush="{TemplateBinding Border.BorderBrush}" />
        </Grid>
        <ControlTemplate.Triggers>
            <Trigger Property="ProgressBar.Orientation"
                     Value="Vertical">
                <Setter Property="FrameworkElement.LayoutTransform"
                        TargetName="TemplateRoot">
                    <Setter.Value>
                        <RotateTransform Angle="-90" />
                    </Setter.Value>
                </Setter>
            </Trigger>
            <Trigger Property="ProgressBar.IsIndeterminate"
                     Value="True">
                <Setter Property="UIElement.Visibility"
                        TargetName="LeftDark"
                        Value="Collapsed" />
                <Setter Property="UIElement.Visibility"
                        TargetName="RightDark"
                        Value="Collapsed" />
                <Setter Property="UIElement.Visibility"
                        TargetName="LeftLight"
                        Value="Collapsed" />
                <Setter Property="UIElement.Visibility"
                        TargetName="CenterLight"
                        Value="Collapsed" />

                <Setter Property="UIElement.Visibility"
                        TargetName="RightLight"
                        Value="Collapsed" />
                <Setter Property="UIElement.Visibility"
                        TargetName="Indicator"
                        Value="Collapsed" />
            </Trigger>
            <Trigger Property="ProgressBar.IsIndeterminate"
                     Value="False">
                <Setter Property="Panel.Background"
                        TargetName="Animation"
                        Value="#80B5FFA9" />
            </Trigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>
    <Style TargetType="ProgressBar">
        <Setter Property="Template"
                Value="{StaticResource ResourceKey=templateprogress}" />
    </Style>