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    <p>I Have a running sample that uses the MVVM Pattern and creates Lines within a <code>ListBox</code> that has a <code>Canvas</code> as its <code>ItemsPanel</code>.</p> <p>I actually made it for <a href="https://stackoverflow.com/questions/15278625/rendering-lines-as-selectable-controls-with-properties">this question</a>, but the OP kind of dissapeared and never contacted me about it.</p> <p>This is what it looks like in my computer:</p> <p><img src="https://i.stack.imgur.com/v9rAy.png" alt="enter image description here"></p> <p>The main part of it is this:</p> <pre><code>&lt;ListBox ItemsSource="{Binding}" x:Name="lst" Height="500" Width="500"&gt; &lt;ListBox.ItemsPanel&gt; &lt;ItemsPanelTemplate&gt; &lt;Canvas IsItemsHost="True"/&gt; &lt;/ItemsPanelTemplate&gt; &lt;/ListBox.ItemsPanel&gt; &lt;ListBox.ItemContainerStyle&gt; &lt;Style TargetType="ListBoxItem"&gt; &lt;Setter Property="FocusVisualStyle"&gt; &lt;Setter.Value&gt; &lt;Style TargetType="Control"&gt; &lt;Setter Property="Opacity" Value="0"/&gt; &lt;/Style&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="ListBoxItem"&gt; &lt;Line X1="{Binding X1}" Y1="{Binding Y1}" X2="{Binding X2}" Y2="{Binding Y2}" StrokeThickness="{Binding Thickness}" Opacity="{Binding Opacity}" x:Name="Line"&gt; &lt;Line.Stroke&gt; &lt;LinearGradientBrush StartPoint="0,0" EndPoint="1,1"&gt; &lt;GradientStop Color="{Binding Color1}" Offset="0"/&gt; &lt;GradientStop Color="{Binding Color2}" Offset="1"/&gt; &lt;/LinearGradientBrush&gt; &lt;/Line.Stroke&gt; &lt;/Line&gt; &lt;ControlTemplate.Triggers&gt; &lt;Trigger Property="IsSelected" Value="true"&gt; &lt;Setter Property="Effect" TargetName="Line"&gt; &lt;Setter.Value&gt; &lt;DropShadowEffect Color="CornflowerBlue" ShadowDepth="3" BlurRadius="10"/&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Trigger&gt; &lt;/ControlTemplate.Triggers&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/ListBox.ItemContainerStyle&gt; &lt;/ListBox&gt; </code></pre> <p>ViewModel:</p> <pre><code> public class LineViewModel : INotifyPropertyChanged { #region Timer-based Animation private System.Threading.Timer Timer; private static Random Rnd = new Random(); private bool _animate; public bool Animate { get { return _animate; } set { _animate = value; NotifyPropertyChanged("Animate"); if (value) StartTimer(); else StopTimer(); } } private int _animationSpeed = 1; public int AnimationSpeed { get { return _animationSpeed; } set { _animationSpeed = value; NotifyPropertyChanged("AnimationSpeed"); if (Timer != null) Timer.Change(0, 100/value); } } private static readonly List&lt;int&gt; _animationSpeeds = new List&lt;int&gt;{1,2,3,4,5}; public List&lt;int&gt; AnimationSpeeds { get { return _animationSpeeds; } } public void StartTimer() { StopTimer(); Timer = new Timer(x =&gt; Timer_Tick(), null, 0, 100/AnimationSpeed); } public void StopTimer() { if (Timer != null) { Timer.Dispose(); Timer = null; } } private void Timer_Tick() { X1 = X1 + Rnd.Next(-2, 3); Y1 = Y1 + Rnd.Next(-2, 3); X2 = X2 + Rnd.Next(-2, 3); Y2 = Y2 + Rnd.Next(-2, 3); } #endregion #region Coordinates private double _x1; public double X1 { get { return _x1; } set { _x1 = value; NotifyPropertyChanged("X1"); } } private double _y1; public double Y1 { get { return _y1; } set { _y1 = value; NotifyPropertyChanged("Y1"); } } private double _x2; public double X2 { get { return _x2; } set { _x2 = value; NotifyPropertyChanged("X2"); } } private double _y2; public double Y2 { get { return _y2; } set { _y2 = value; NotifyPropertyChanged("Y2"); } } #endregion #region Other Properties private string _name; public string Name { get { return _name; } set { _name = value; NotifyPropertyChanged("Name"); } } private double _thickness; public double Thickness { get { return _thickness; } set { _thickness = value; NotifyPropertyChanged("Thickness"); } } public Color Color1 { get; set; } public Color Color2 { get; set; } private double _opacity = 1; public double Opacity { get { return _opacity; } set { _opacity = value; NotifyPropertyChanged("Opacity"); } } #endregion #region INotifyPropertyChanged public event PropertyChangedEventHandler PropertyChanged; private void NotifyPropertyChanged(string propertyName) { Application.Current.Dispatcher.BeginInvoke((Action)(() =&gt; { if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); })); } #endregion } </code></pre> <p><strong>Edit:</strong> Source code now on <a href="https://github.com/High-Core/WPFSamples/tree/master/LineEditor" rel="nofollow noreferrer">GitHub</a></p>
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