WPF实现仪表盘（刻度跟随）

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每日一笑

            刚和另一位摸鱼大户同事聊天，说起业余爱好。我："我下班就看看电影打打游戏，你呢？"同事："帮人做网站挣点外快，另外最近我目前在做一个区块链的创业项目，已经占我总收入10%了 。我有时候回复工作消息慢就是在搞这个。"感觉被背叛了，原来只有我是傻呵呵地真摸鱼。

前言 

      需要实现仪表盘。

欢迎转发、分享、点赞，谢谢大家~。  

效果预览（更多效果请下载源码体验）：

一、DashboardControl.cs 代码如下

using System;using System.Collections.Generic;using System.Linq;using System.Windows;using System.Windows.Controls;using System.Windows.Media;using System.Windows.Media.Animation;using WpfDashboard.Models;namespace WpfDashboard{ public class DashboardControl : ProgressBar {  public DashboardControl()  {   this.ValueChanged += CircularProgressBar_ValueChanged;  }  void CircularProgressBar_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)  {   DashboardControl bar = sender as DashboardControl;   double currentAngle = bar.Angle;   double targetAngle = e.NewValue / bar.Maximum * 180;   Angle = targetAngle;   if (ScaleArray == null)    ArrayList();   var count = Convert.ToInt32(Angle / (180 / ScaleNum));   ScaleArray.ToList().ForEach(y =>   {    y.Background = Brushes.White;   });   Brush color = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF19DCF0"));   ScaleArray.Where(x => x.Index <= count).ToList().ForEach(y =>   {    y.Background = color;   });  }  public double Angle  {   get { return (double)GetValue(AngleProperty); }   set { SetValue(AngleProperty, value); }  }  public static readonly DependencyProperty AngleProperty =   DependencyProperty.Register("Angle", typeof(double), typeof(DashboardControl), new PropertyMetadata(0.0));  public IList<ScaleModel> ScaleArray  {   get { return (IList<ScaleModel>)GetValue(ScaleArrayProperty); }   private set { SetValue(ScaleArrayProperty, value); }  }  public static readonly DependencyProperty ScaleArrayProperty =   DependencyProperty.Register("ScaleArray", typeof(IList<ScaleModel>), typeof(DashboardControl), new PropertyMetadata(null));  public int ScaleNum  {   get { return (int)GetValue(ScaleNumProperty); }   set { SetValue(ScaleNumProperty, value); }  }  public static readonly DependencyProperty ScaleNumProperty =   DependencyProperty.Register("ScaleNum", typeof(int), typeof(DashboardControl), new PropertyMetadata(18));  void ArrayList()  {   List<ScaleModel> shortticks = new List<ScaleModel>();   for (int i = 0; i < ScaleNum; i++)   {    shortticks.Add(new ScaleModel { Index = i, Background = Brushes.White });   }   this.ScaleArray = shortticks;  } }}

二、App.xaml 代码如下

<Application x:Class="WpfDashboard.App"    =""    =""    =""    =""    ="clr-namespace:WpfDashboard"    StartupUri="MainWindow.xaml"> <Application.Resources>    <LinearGradientBrush x:Key="NormalBrush" EndPoint="0.5,1" StartPoint="0.5,0">   <GradientStop Color="#FF164DA7"/>   <GradientStop Color="#FF19DCF0" Offset="1"/>  </LinearGradientBrush>  <Style TargetType="local:DashboardControl">   <Setter Property="Maximum" Value="100"/>   <Setter Property="Background" Value="#252525"/>   <Setter Property="Width" Value="200"/>   <Setter Property="Height" Value="200"/>   <Setter Property="Template">    <Setter.Value>     <ControlTemplate TargetType="local:DashboardControl">      <Viewbox>       <Grid Width="{TemplateBinding Width}" Height="{TemplateBinding Height}"         Background="{TemplateBinding Background}"         RenderTransformOrigin="0.5,0.5">        <Grid.RenderTransform>         <TransformGroup>          <RotateTransform Angle="-90"/>         </TransformGroup>        </Grid.RenderTransform>        <ed:Arc ArcThickness="8" ArcThicknessUnit="Pixel" Fill="White"           RenderTransformOrigin="0.5,0.5"           StartAngle="0"           EndAngle="180"           Stretch="None"           Margin="10"/>        <ed:Arc x:Name="PART_PathBackground" Margin="24" ArcThickness="0" ArcThicknessUnit="Pixel"          EndAngle="180"          StartAngle="0"          Stretch="None" />                <ed:Arc ArcThickness="8" ArcThicknessUnit="Pixel"           Fill="{StaticResource NormalBrush}"          StartAngle="0"          EndAngle="{Binding Angle, RelativeSource={RelativeSource FindAncestor, AncestorType=ProgressBar}}"          Stretch="None"           Margin="10"/>        <ec:PathListBox IsHitTestVisible="False"       ItemsSource="{Binding ScaleArray,RelativeSource={RelativeSource FindAncestor,AncestorType=ProgressBar}}">         <ec:PathListBox.ItemTemplate>          <DataTemplate>           <Border Width="2" Height="8" Background="{Binding Background}" SnapsToDevicePixels="True"         UseLayoutRounding="True" />          </DataTemplate>         </ec:PathListBox.ItemTemplate>         <ec:PathListBox.LayoutPaths>          <ec:LayoutPath Distribution="Even" Orientation="OrientToPath"          SourceElement="{Binding ElementName=PART_PathBackground}" />         </ec:PathListBox.LayoutPaths>        </ec:PathListBox>        <Border R......
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WPF开发者QQ群：340500857|微信群->进入公众号主页加入组织每日一笑刚和另一位摸鱼大户同事聊天，说起业余爱好。我："我下班就看看电影打打游戏，你呢？"同事："帮人做网站挣点外快，另外最近我目前在做一个区块链的创业项目，已经占我总收入10%了。我有时候回复工作消息慢就是在搞这个。"感觉被背叛了，原来只有我是傻呵呵地真摸鱼。前言需要实现仪表盘。欢迎转发、分享、点赞，谢谢大家~。效果预
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