如何更改WPF進度條上的顏色

Question

我有一個WPF，vista樣式進度條，我想更改畫筆。 我已經將前景畫筆設置為另一種顏色，但是有一種嗖嗖的動畫效果，其顏色仍然是默認的綠色。 我怎么能改變這個？

Answer 1

為此，您需要在項目中編輯Progress Bar控件的ControlTemplate樣式。

<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">
          <Border 
            Name="PART_Track" 
            CornerRadius="2" 
            Background="{StaticResource PressedBrush}"
            BorderBrush="{StaticResource SolidBorderBrush}"
            BorderThickness="1" />
          <Border 
            Name="PART_Indicator" 
            CornerRadius="2" 
            Background="{StaticResource DarkBrush}" 
            BorderBrush="{StaticResource NormalBorderBrush}" 
            BorderThickness="1" 
            HorizontalAlignment="Left" />
        </Grid>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

使用這些樣式的示例：

<LinearGradientBrush x:Key="PressedBrush" StartPoint="0,0" EndPoint="0,1">
  <GradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#BBB" Offset="0.0"/>
      <GradientStop Color="#EEE" Offset="0.1"/>
      <GradientStop Color="#EEE" Offset="0.9"/>
      <GradientStop Color="#FFF" Offset="1.0"/>
    </GradientStopCollection>
  </GradientBrush.GradientStops>
</LinearGradientBrush>


...


<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />


...


<LinearGradientBrush x:Key="DarkBrush" StartPoint="0,0" EndPoint="0,1">
  <GradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#FFF" Offset="0.0"/>
      <GradientStop Color="#AAA" Offset="1.0"/>
    </GradientStopCollection>
  </GradientBrush.GradientStops>
</LinearGradientBrush>


...


<LinearGradientBrush x:Key="NormalBorderBrush" StartPoint="0,0" EndPoint="0,1">
  <GradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#CCC" Offset="0.0"/>
      <GradientStop Color="#444" Offset="1.0"/>
    </GradientStopCollection>
  </GradientBrush.GradientStops>
</LinearGradientBrush>

您可以在MSDN上看到此示例： ProgressBar ControlTemplate示例