你如何改變WPF進度條上的顏色

Question

我有一個WPF，Vista風格的進度條，我想改變畫筆。我已經將前景刷設置爲另一種顏色，但有一種顏色仍然是默認綠色的動畫效果。我該如何改變這一點？

Answer 1

爲此，您需要編輯項目中進度條控件的ControlTemplate樣式。使用這些樣式

<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> 

例子：

<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> 

你可以看到在MSDN上的這樣一個例子：ProgressBar ControlTemplate Example