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使用wpf做一个原生的进度条，进度条上面有值，先看效果。

功能就是点击按钮，后台处理数据，前台显示处理数据的变化，当然还可以对进度条进行美化和关闭的操作，等待后台处理完毕数据，然后自动关闭。

1.首先简简单单创建一个项目

2.先建立进度条的页面DialogWait.xaml

<Window x:Class="WpfApp5.DialogWait"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:local="clr-namespace:WpfApp5"mc:Ignorable="d"WindowStyle="None" AllowsTransparency="True"  Background="Transparent" ShowInTaskbar="False" ResizeMode="NoResize"><ProgressBar x:Name="progressBar" Maximum="100"   Height="25" Width="300" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
</Window>

3.DialogWait.xaml.cs后台代码如下

关键点就是要对max的值进行判断，如果大于100和小于100的话，显示是不一样的，主要是因为进度条的值是100，要相对的扩大或者缩小，那么界面上显示的数据变化就是一样的。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;namespace WpfApp5
{/// <summary>/// DialogWait.xaml 的交互逻辑/// </summary>public partial class DialogWait : Window{/// <summary>/// 进度条最大值/// </summary>private int max = 0;/// <summary>/// 大于100的增量/// </summary>private int increment = 0;/// <summary>/// 小于100的增量/// </summary>private double incrementLess = 0;public DialogWait(){InitializeComponent();}public DialogWait(int max){InitializeComponent();this.Width = 300;this.Height = 25;this.Owner = Application.Current.MainWindow;this.WindowStartupLocation = WindowStartupLocation.CenterOwner;this.max = max;if (max >= 100){increment = max / 100;}else{incrementLess = Math.Round(100.0 / max, 3);}}public void ShowWait(int value){progressBar.Dispatcher.Invoke(() =>{if (max >= 100){progressBar.Value = value / increment;}else{progressBar.Value = Math.Round(value * incrementLess, 0);}});}}
}

4.MainWindow.xaml.cs的代码

其中最重要的就是Task

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;namespace WpfApp5
{/// <summary>/// Interaction logic for MainWindow.xaml/// </summary>public partial class MainWindow : Window{public MainWindow(){InitializeComponent();}private void Button_Click(object sender, RoutedEventArgs e){DialogWait dialogWaitPercent = new DialogWait(500);Task.Run(() =>{A(dialogWaitPercent);//处理数据});dialogWaitPercent.ShowDialog();}public void A(DialogWait dialogWaitPercent){for (int i = 0; i < 500; i++){dialogWaitPercent.ShowWait(i);Thread.Sleep(10);}dialogWaitPercent.Dispatcher.Invoke(() =>{dialogWaitPercent.Close();});}}
}

5.ProgressBarStyle.xaml，最后就是对进度条的美化样式

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"><Style TargetType="{x:Type ProgressBar}"><Setter Property="FocusVisualStyle" Value="{x:Null}"/><Setter Property="SnapsToDevicePixels" Value="True"/><Setter Property="Height" Value="15"/><Setter Property="Background" Value="#6fae5f"/><Setter Property="FontSize" Value="10"/><Setter Property="Padding" Value="5,0"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type ProgressBar}"><Grid Background="#00000000"><Grid.RowDefinitions><RowDefinition Height="Auto"/></Grid.RowDefinitions><VisualStateManager.VisualStateGroups><VisualStateGroup x:Name="CommonStates"><VisualState x:Name="Determinate"/><VisualState x:Name="Indeterminate"><Storyboard RepeatBehavior="Forever"><PointAnimationUsingKeyFrames Storyboard.TargetName="Animation" Storyboard.TargetProperty="(UIElement.RenderTransformOrigin)"><EasingPointKeyFrame KeyTime="0:0:0" Value="0.5,0.5"/><EasingPointKeyFrame KeyTime="0:0:1.5" Value="1.95,0.5"/><EasingPointKeyFrame KeyTime="0:0:3" Value="0.5,0.5"/></PointAnimationUsingKeyFrames></Storyboard></VisualState></VisualStateGroup></VisualStateManager.VisualStateGroups><Grid Height="{TemplateBinding Height}"><Border Background="#000000" CornerRadius="7.5" Opacity="0.05"/><Border BorderBrush="#000000" BorderThickness="1" CornerRadius="7.5" Opacity="0.1"/><Grid Margin="{TemplateBinding BorderThickness}"><Border x:Name="PART_Track"/><Grid x:Name="PART_Indicator" ClipToBounds="True" HorizontalAlignment="Left" ><Grid.ColumnDefinitions><ColumnDefinition x:Name="width1"/><ColumnDefinition x:Name="width2" Width="0"/></Grid.ColumnDefinitions><Grid x:Name="Animation"  RenderTransformOrigin="0.5,0.5"><Grid.RenderTransform><TransformGroup><ScaleTransform ScaleY="-1" ScaleX="1"/><SkewTransform AngleY="0" AngleX="0"/><RotateTransform Angle="180"/><TranslateTransform/></TransformGroup></Grid.RenderTransform><Border Background="{TemplateBinding Background}" CornerRadius="7.5"><Viewbox HorizontalAlignment="Left" StretchDirection="DownOnly" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="True"><TextBlock Foreground="#ffffff" SnapsToDevicePixels="True" FontSize="{TemplateBinding FontSize}" VerticalAlignment="Center" Text="{Binding RelativeSource={RelativeSource TemplatedParent},Path=Value,StringFormat={}{0}%}" RenderTransformOrigin="0.5,0.5"><TextBlock.RenderTransform><TransformGroup><ScaleTransform ScaleY="1" ScaleX="-1"/><SkewTransform AngleY="0" AngleX="0"/><RotateTransform Angle="0"/><TranslateTransform/></TransformGroup></TextBlock.RenderTransform></TextBlock></Viewbox></Border><Border BorderBrush="#000000" BorderThickness="1" CornerRadius="7.5" Opacity="0.1"/></Grid></Grid></Grid></Grid></Grid><ControlTemplate.Triggers><Trigger Property="IsEnabled" Value="False"><Setter Property="Background" Value="#c5c5c5"/></Trigger><Trigger Property="IsIndeterminate" Value="true"><Setter TargetName="width1" Property="Width" Value="0.25*"/><Setter TargetName="width2" Property="Width" Value="0.725*"/></Trigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter></Style>
</ResourceDictionary>

本案例代码：https://download.csdn.net/download/u012563853/88578158

来源：WPF创建进度条-CSDN博客