WPF

<pre><UserControl x:Class="Testing.CustomControls.WaitTicker_CustomControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:Testing.CustomControls"
             mc:Ignorable="d" 
             d:DesignHeight="70" d:DesignWidth="60"
             Name="WaitTickerCustomControl">
    <Grid Name="WaitTickerMainGrid" Visibility="{Binding Path=ControlHideShow,ElementName=WaitTickerCustomControl, FallbackValue=Visible}">
        <Border Name="Pulse1" 
                CornerRadius="{Binding Path=ControlCornerRadius1,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Height="{Binding Path=PulseHeight1,ElementName=WaitTickerCustomControl,FallbackValue=50}"
                Width="{Binding Path=PulseWidth1,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Margin="10,10,0,0"
                Background="{Binding Path=ControlBackground1,ElementName=WaitTickerCustomControl,FallbackValue=#4287f5}" 
                HorizontalAlignment="Left" VerticalAlignment="Top"/>

        <Border Name="Pulse2"
                CornerRadius="{Binding Path=ControlCornerRadius2,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Height="{Binding Path=PulseHeight2,ElementName=WaitTickerCustomControl,FallbackValue=50}"
                Width="{Binding Path=PulseWidth2,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Margin="25,10,0,0"
                Background="{Binding Path=ControlBackground2,ElementName=WaitTickerCustomControl,FallbackValue=#4287f5}" 
                HorizontalAlignment="Left" VerticalAlignment="Top"/>

        <Border Name="Pulse3"
                CornerRadius="{Binding Path=ControlCornerRadius3,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Height="{Binding Path=PulseHeight3,ElementName=WaitTickerCustomControl,FallbackValue=50}"
                Width="{Binding Path=PulseWidth3,ElementName=WaitTickerCustomControl,FallbackValue=10}"
                Margin="40,10,0,0"
                Background="{Binding Path=ControlBackground3,ElementName=WaitTickerCustomControl,FallbackValue=#4287f5}" 
                HorizontalAlignment="Left" VerticalAlignment="Top"/>
    </Grid>
</UserControl>

public partial class WaitTicker_CustomControl : UserControl, INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler? PropertyChanged;
        protected void OnPropertyChanged([CallerMemberName] string? propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        //Directly Bound to XAML
        public Visibility ControlHideShow
        {
            get { return (Visibility)GetValue(ControlHideShowProperty); }
            set { SetValue(ControlHideShowProperty, value); }
        }
        public static readonly DependencyProperty ControlHideShowProperty =
            DependencyProperty.Register("ControlHideShow", typeof(Visibility), 
                typeof(WaitTicker_CustomControl),
               new PropertyMetadata(Visibility.Hidden));
        public int ControlCornerRadius1
        {
            get { return (int)GetValue(ControlCornerRadius1Property); }
            set { SetValue(ControlCornerRadius1Property, value); }
        }
        public static readonly DependencyProperty ControlCornerRadius1Property =
            DependencyProperty.Register("ControlCornerRadius1", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(10));
        public int ControlCornerRadius2
        {
            get { return (int)GetValue(ControlCornerRadius2Property); }
            set { SetValue(ControlCornerRadius2Property, value); }
        }
        public static readonly DependencyProperty ControlCornerRadius2Property =
            DependencyProperty.Register("ControlCornerRadius2", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(10));
        public int ControlCornerRadius3
        {
            get { return (int)GetValue(ControlCornerRadius3Property); }
            set { SetValue(ControlCornerRadius3Property, value); }
        }
        public static readonly DependencyProperty ControlCornerRadius3Property =
            DependencyProperty.Register("ControlCornerRadius3", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(10));
        public int PulseHeight1
        {
            get { return (int)GetValue(PulseHeight1Property); }
            set { SetValue(PulseHeight1Property, value); }
        }
        public static readonly DependencyProperty PulseHeight1Property =
            DependencyProperty.Register("PulseHeight1", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(1));
        public int PulseHeight2
        {
            get { return (int)GetValue(PulseHeight2Property); }
            set { SetValue(PulseHeight2Property, value); }
        }
        public static readonly DependencyProperty PulseHeight2Property =
            DependencyProperty.Register("PulseHeight2", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(25));
        public int PulseHeight3
        {
            get { return (int)GetValue(PulseHeight3Property); }
            set { SetValue(PulseHeight3Property, value); }
        }
        public static readonly DependencyProperty PulseHeight3Property =
            DependencyProperty.Register("PulseHeight3", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(50));
        public int PulseWidth1
        {
            get { return (int)GetValue(PulseWidth1Property); }
            set { SetValue(PulseWidth1Property, value); }
        }
        public static readonly DependencyProperty PulseWidth1Property =
            DependencyProperty.Register("PulseWidth1", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(20));
        public int PulseWidth2
        {
            get { return (int)GetValue(PulseWidth2Property); }
            set { SetValue(PulseWidth2Property, value); }
        }
        public static readonly DependencyProperty PulseWidth2Property =
            DependencyProperty.Register("PulseWidth2", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(20));
        public int PulseWidth3
        {
            get { return (int)GetValue(PulseWidth3Property); }
            set { SetValue(PulseWidth3Property, value); }
        }
        public static readonly DependencyProperty PulseWidth3Property =
            DependencyProperty.Register("PulseWidth3", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(0));

        public Brush ControlBackground1
        {
            get { return (Brush)GetValue(ControlBackground1Property); }
            set { SetValue(ControlBackground1Property, value); }
        }
        public static readonly DependencyProperty ControlBackground1Property =
            DependencyProperty.Register("ControlBackground1", typeof(Brush),
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(Brushes.Blue));
        public Brush ControlBackground2
        {
            get { return (Brush)GetValue(ControlBackground2Property); }
            set { SetValue(ControlBackground2Property, value); }
        }
        public static readonly DependencyProperty ControlBackground2Property =
            DependencyProperty.Register("ControlBackground2", typeof(Brush),
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(Brushes.Blue));
        public Brush ControlBackground3
        {
            get { return (Brush)GetValue(ControlBackground3Property); }
            set { SetValue(ControlBackground3Property, value); }
        }
        public static readonly DependencyProperty ControlBackground3Property =
            DependencyProperty.Register("ControlBackground3", typeof(Brush),
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(Brushes.Blue));


        private Beating _timer1;
        private Beating _timer2;
        private Beating _timer3;

        // Indirectly Bound to XAML
        public int PulseIncrementValue
        {
            get { return (int)GetValue(PulseIncrementValueProperty); }
            set { SetValue(PulseIncrementValueProperty, value); }
        }
        public static readonly DependencyProperty PulseIncrementValueProperty =
            DependencyProperty.Register("PulseIncrementValue", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(1));
        public int PulseMaxValue
        {
            get { return (int)GetValue(PulseMaxValueProperty); }
            set { SetValue(PulseMaxValueProperty, value); }
        }
        public static readonly DependencyProperty PulseMaxValueProperty =
            DependencyProperty.Register("PulseMaxValue", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(50));
        public int PulseMinValue
        {
            get { return (int)GetValue(PulseMinValueProperty); }
            set { SetValue(PulseMinValueProperty, value); }
        }
        public static readonly DependencyProperty PulseMinValueProperty =
            DependencyProperty.Register("PulseMinValue", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(10));
        public double PulseSpeedValue
        {
            get { return (double)GetValue(PulseSpeedValueProperty); }
            set { SetValue(PulseSpeedValueProperty, value); }
        }
        public static readonly DependencyProperty PulseSpeedValueProperty =
            DependencyProperty.Register("PulseSpeedValue", typeof(double), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(0.01));
        public int PulseCurrentValue1
        {
            get { return (int)GetValue(PulseCurrentValue1Property); }
            set { SetValue(PulseCurrentValue1Property, value); }
        }
        public static readonly DependencyProperty PulseCurrentValue1Property =
            DependencyProperty.Register("PulseCurrentValue1", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(5));
        public int PulseCurrentValue2
        {
            get { return (int)GetValue(PulseCurrentValue2Property); }
            set { SetValue(PulseCurrentValue2Property, value); }
        }
        public static readonly DependencyProperty PulseCurrentValue2Property =
            DependencyProperty.Register("PulseCurrentValue2", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(20));
        public int PulseCurrentValue3
        {
            get { return (int)GetValue(PulseCurrentValue3Property); }
            set { SetValue(PulseCurrentValue3Property, value); }
        }
        public static readonly DependencyProperty PulseCurrentValue3Property =
            DependencyProperty.Register("PulseCurrentValue3", typeof(int), 
                typeof(WaitTicker_CustomControl),
                new PropertyMetadata(40));

        private Beating CreateBeating(string beatName, DependencyProperty valueProperty, Border pulse)
        {
            Beating result = new Beating((int)GetValue(valueProperty), PulseIncrementValue, PulseMinValue, PulseMaxValue, beatName, PulseSpeedValue);

            // Push changes to the control's properties down to the Beating instance:
            SetBinding(PulseIncrementValueProperty, new Binding(nameof(Beating.Increment)) { Source = result, Mode = BindingMode.OneWayToSource });
            SetBinding(PulseMinValueProperty, new Binding(nameof(Beating.MinValue)) { Source = result, Mode = BindingMode.OneWayToSource });
            SetBinding(PulseMaxValueProperty, new Binding(nameof(Beating.MaxValue)) { Source = result, Mode = BindingMode.OneWayToSource });
            SetBinding(PulseSpeedValueProperty, new Binding(nameof(Beating.Speed)) { Source = result, Mode = BindingMode.OneWayToSource });

            // Bind the border's height to the Beating's value:
            pulse.SetBinding(FrameworkElement.HeightProperty, new Binding(nameof(Beating.Value)) { Source = result, Mode = BindingMode.OneWay });

            return result;
        }
        public WaitTicker_CustomControl()
        {
            InitializeComponent();
            _timer1 = CreateBeating("Pulse1", PulseCurrentValue1Property, Pulse1);
            _timer2 = CreateBeating("Pulse2", PulseCurrentValue2Property, Pulse2);
            _timer3 = CreateBeating("Pulse3", PulseCurrentValue3Property, Pulse3);
        }
    }
    internal sealed class Beating : INotifyPropertyChanged
    {
        private readonly Timer? _timer;
        private int _value;
        private bool _direction;

        public int Value
        {
            get { return _value; }
            set
            {
                if (value != _value)
                {
                    _value = value;
                    OnPropertyChanged();
                }
            }
        }
        public int Increment { get; set; }
        public int MinValue { get; set; }
        public int MaxValue { get; set; }
        public string BeatName { get; }

        public double Speed
        {
            get { return _timer.Interval; }
            set { _timer.Interval = value; }
        }

        public event PropertyChangedEventHandler? PropertyChanged;
        private void OnPropertyChanged([CallerMemberName] string? propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
        public Beating(int initialValue, int increment, int minValue, int maxValue, string beatName, double speed)
        {
            _value = initialValue;
            Increment = increment;
            MinValue = minValue;
            MaxValue = maxValue;
            BeatName = beatName;

            _timer = new Timer
            {
                Interval = speed,
                AutoReset = true,
                Enabled = true,
            };

            _timer.Elapsed += OnTimedEvent;
        }
        public void StartTimer()
        {
            _timer.Start();
        }
        public void StopTimer()
        {
            _timer.Stop();
        }
        private void OnTimedEvent(Object source, ElapsedEventArgs e)
        {
            if (!_direction)
            {
                Value -= Increment;
                if (Value < MinValue)
                    _direction = true;
            }
            else
            {
                Value += Increment;
                if (Value > MaxValue)
                    _direction = false;
            }
        }
    }

<Window x:Class="Testing.MainWindow"
        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:Testing" xmlns:customcontrols="clr-namespace:Testing.CustomControls"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <customcontrols:WaitTicker_CustomControl
            Height="100" Width="100"
            VerticalAlignment="Top" HorizontalAlignment="Left"
            Margin="10 10 0 0"
            PulseMaxValue="100"
            PulseMinValue="5"
            PulseHeight1="100"
            PulseHeight2="100"
            PulseHeight3="100"
            PulseSpeedValue="50"
            ControlCornerRadius1="5"
            ControlCornerRadius2="5"
            ControlCornerRadius3="5"
            ControlBackground1="Aquamarine"
            ControlBackground2="Yellow"
            ControlBackground3="Orange"/>
    </Grid>
</Window>

ElementName=WaitTickerCustomControl

this.DataContext = this;

Gerry Schmitz wrote:

this.DataContext = this;

<UserControl 
    x:Class="DES.CATIAV6.ClearanceContactAndClashManager.UI.Controls.WaitTicker_Control"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
    xmlns:local="clr-namespace:DES.CATIAV6.ClearanceContactAndClashManager.UI.Controls"
    mc:Ignorable="d" 
    Background="Transparent" 
    Height="70" Width="60"
    Name="WaitTickerControl"
>
    <Grid Name="WaitTickerMainGrid" Visibility="{Binding Path=ControlHideShow, ElementName=WaitTickerControl, FallbackValue=Hidden}">
        ...
    </Grid>
</UserControl>

Quote:

Prism 8 is a fully open source version of the Prism guidance originally produced by Microsoft patterns & practices.