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ProgressBar 樣式和範本

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本主題說明 ProgressBar 控件項的樣式和範本。 您可以修改預設的 ControlTemplate，為控制項提供唯一的外觀。 如需詳細資訊，請參閱為控制項建立範本。

進度列組件

下表列出 ProgressBar 控件項的具名組件。

部分 類型 描述
PART_Indicator FrameworkElement 表示進度的物件。
PART_Track FrameworkElement 定義進度列指示器路徑的物件。
PART_GlowRect FrameworkElement 裝飾進度列的物件。

進度列狀態

下表列出 ProgressBar 控制項的視覺物件狀態。

VisualState 名稱 VisualStateGroup 名稱 描述
確定 CommonStates ProgressBar 會根據 Value 屬性報告進度。
未決 CommonStates ProgressBar 使用重複模式報告一般進度。
有效 ValidationStates 控制項會使用 Validation 類別，且 Validation.HasError 的附加屬性為 false。
InvalidFocused ValidationStates Validation.HasError 附加屬性為具有焦點控制項的 true。
InvalidUnfocused ValidationStates Validation.HasError 附加屬性為不具有焦點控制項的 true。

ProgressBar ControlTemplate 範例

下列範例顯示如何定義 ControlTemplate 控制項的 ProgressBar。

<Style x:Key="{x:Type ProgressBar}"
       TargetType="{x:Type ProgressBar}">
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type ProgressBar}">
        <Grid MinHeight="14"
              MinWidth="200"
              Background="{TemplateBinding Background}">
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Determinate" />
              <VisualState x:Name="Indeterminate">
                <Storyboard>
                  <ObjectAnimationUsingKeyFrames Duration="00:00:00"
                                                 Storyboard.TargetName="PART_Indicator"
                                                 Storyboard.TargetProperty="Background">
                    <DiscreteObjectKeyFrame KeyTime="00:00:00">
                      <DiscreteObjectKeyFrame.Value>
                        <SolidColorBrush>Transparent</SolidColorBrush>
                      </DiscreteObjectKeyFrame.Value>
                    </DiscreteObjectKeyFrame>
                  </ObjectAnimationUsingKeyFrames>

                </Storyboard>
              </VisualState>
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <Border x:Name="PART_Track"
                  CornerRadius="2"
                  BorderThickness="1">
            <Border.BorderBrush>
              <SolidColorBrush Color="{DynamicResource BorderMediumColor}" />
            </Border.BorderBrush>
          </Border>
          <Border x:Name="PART_Indicator"
                  CornerRadius="2"
                  BorderThickness="1"
                  HorizontalAlignment="Left"
                  Background="{TemplateBinding Foreground}"
                  Margin="0,-1,0,1">
            <Border.BorderBrush>
              <LinearGradientBrush StartPoint="0,0"
                                   EndPoint="0,1">
                <GradientBrush.GradientStops>
                  <GradientStopCollection>
                    <GradientStop Color="{DynamicResource BorderLightColor}"
                                  Offset="0.0" />
                    <GradientStop Color="{DynamicResource BorderMediumColor}"
                                  Offset="1.0" />
                  </GradientStopCollection>
                </GradientBrush.GradientStops>
              </LinearGradientBrush>

            </Border.BorderBrush>
            <Grid ClipToBounds="True"
                  x:Name="Animation">
              <Rectangle x:Name="PART_GlowRect"
                         Width="100"
                         HorizontalAlignment="Left"
                         Fill="{DynamicResource ProgressBarIndicatorAnimatedFill}"
                         Margin="-100,0,0,0" />
            </Grid>
          </Border>
        </Grid>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
  <Setter Property="Background">
    <Setter.Value>
      <LinearGradientBrush EndPoint="0,1"
                           StartPoint="0,0">
        <GradientStop Color="{DynamicResource ControlLightColor}"
                      Offset="0" />
        <GradientStop Color="{DynamicResource ControlMediumColor}"
                      Offset="1" />
      </LinearGradientBrush>
    </Setter.Value>
  </Setter>
  <Setter Property="Foreground">
    <Setter.Value>
      <LinearGradientBrush EndPoint="0.5,1"
                           StartPoint="0.5,0">
        <GradientStop Color="{DynamicResource ControlMediumColor}"
                      Offset="0" />
        <GradientStop Color="{DynamicResource ControlDarkColor}"
                      Offset="1" />
      </LinearGradientBrush>
    </Setter.Value>
  </Setter>
</Style>

上述範例使用下列一或多項資源。

<!--Control colors.-->
<Color x:Key="WindowColor">#FFE8EDF9</Color>
<Color x:Key="ContentAreaColorLight">#FFC5CBF9</Color>
<Color x:Key="ContentAreaColorDark">#FF7381F9</Color>

<Color x:Key="DisabledControlLightColor">#FFE8EDF9</Color>
<Color x:Key="DisabledControlDarkColor">#FFC5CBF9</Color>
<Color x:Key="DisabledForegroundColor">#FF888888</Color>

<Color x:Key="SelectedBackgroundColor">#FFC5CBF9</Color>
<Color x:Key="SelectedUnfocusedColor">#FFDDDDDD</Color>

<Color x:Key="ControlLightColor">White</Color>
<Color x:Key="ControlMediumColor">#FF7381F9</Color>
<Color x:Key="ControlDarkColor">#FF211AA9</Color>

<Color x:Key="ControlMouseOverColor">#FF3843C4</Color>
<Color x:Key="ControlPressedColor">#FF211AA9</Color>


<Color x:Key="GlyphColor">#FF444444</Color>
<Color x:Key="GlyphMouseOver">sc#1, 0.004391443, 0.002428215, 0.242281124</Color>

<!--Border colors-->
<Color x:Key="BorderLightColor">#FFCCCCCC</Color>
<Color x:Key="BorderMediumColor">#FF888888</Color>
<Color x:Key="BorderDarkColor">#FF444444</Color>

<Color x:Key="PressedBorderLightColor">#FF888888</Color>
<Color x:Key="PressedBorderDarkColor">#FF444444</Color>

<Color x:Key="DisabledBorderLightColor">#FFAAAAAA</Color>
<Color x:Key="DisabledBorderDarkColor">#FF888888</Color>

<Color x:Key="DefaultBorderBrushDarkColor">Black</Color>

<!--Control-specific resources.-->
<Color x:Key="HeaderTopColor">#FFC5CBF9</Color>
<Color x:Key="DatagridCurrentCellBorderColor">Black</Color>
<Color x:Key="SliderTrackDarkColor">#FFC5CBF9</Color>

<Color x:Key="NavButtonFrameColor">#FF3843C4</Color>

<LinearGradientBrush x:Key="MenuPopupBrush"
                     EndPoint="0.5,1"
                     StartPoint="0.5,0">
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="0" />
  <GradientStop Color="{DynamicResource ControlMediumColor}"
                Offset="0.5" />
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="1" />
</LinearGradientBrush>

<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill"
                     StartPoint="0,0"
                     EndPoint="1,0">
  <LinearGradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#000000FF"
                    Offset="0" />
      <GradientStop Color="#600000FF"
                    Offset="0.4" />
      <GradientStop Color="#600000FF"
                    Offset="0.6" />
      <GradientStop Color="#000000FF"
                    Offset="1" />
    </GradientStopCollection>
  </LinearGradientBrush.GradientStops>
</LinearGradientBrush>

如需完整的範例，請參閱使用 ControlTemplate 設定樣式範例。

另請參閱