<Window x:Class="TimerTest.MainWindow"

         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

         Title="MainWindow" Height="" Width="">

     <Grid>

         <Button Content="Button" HorizontalAlignment="Left" Margin="241,249,0,0" VerticalAlignment="Top" Width="" Click="Button_Click"/>

         <ProgressBar x:Name="pb" Minimum="" Maximum="" HorizontalAlignment="Left" Height="" Margin="10,151,0,0" VerticalAlignment="Top" Width=""/>

     </Grid>

 </Window>

 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.Navigation;

 using System.Windows.Shapes;

 using System.Windows.Threading;

 namespace TimerTest

 {

     /// <summary>

     /// Interaction logic for MainWindow.xaml

     /// </summary>

     public partial class MainWindow : Window

     {

         public MainWindow()

         {

             InitializeComponent();

         }

         private void Button_Click(object sender, RoutedEventArgs e)

         {

             DispatcherTimer dispatcherTimer = new DispatcherTimer();

             dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);

             dispatcherTimer.Interval = new TimeSpan(, , );

             dispatcherTimer.Start();

         }

         private void dispatcherTimer_Tick(object sender, EventArgs e)

         {

             pb.Value += ;

         }

     }

 }