Status bar is somehow called a line where the status or we can say information regarding the window is stated.
Below is the code for Status bar having progress bar:
<StatusBar x:Name="StatusBar" VerticalAlignment="Bottom" Height="25" Background="#FF89C1FF">
<StatusBar.ItemsPanel>
<ItemsPanelTemplate>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="4*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
</Grid>
</ItemsPanelTemplate>
</StatusBar.ItemsPanel>
<StatusBarItem BorderThickness="1" Margin="0,-3,0,-2">
<TextBlock x:Name="statusBarText">Welcome to ABC</TextBlock>
</StatusBarItem>
<StatusBarItem Grid.Column="1"></StatusBarItem>
<StatusBarItem Grid.Column="3" HorizontalAlignment="Left" ></StatusBarItem>
</StatusBar>
<TextBlock Margin="472,290,12,6">Go!</TextBlock>
<ProgressBar Value="30" Width="80" Height="18" Margin="0,290,49,3"
HorizontalAlignment="Right"/>