Fix ScrollChanged in JobOutlineControl

Related Work Items: #4243

1 files changed, 1 insertions, 8 deletions

diff --git a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Controls/JobOutlineControl.cs b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Controls/JobOutlineControl.cs
index 68dc7e3bf..77ba4040e 100644
--- a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Controls/JobOutlineControl.cs
+++ b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Developer/Controls/JobOutlineControl.cs
@@ -44,7 +44,6 @@ namespace Tango.MachineStudio.Developer.Controls
 
         public JobOutlineControl() : base()
         {
-            Unloaded += JobOutlineControl_Unloaded;
             DataContextChanged += JobOutlineControl_DataContextChanged;
             Width = WIDTH;
         }
@@ -60,13 +59,6 @@ namespace Tango.MachineStudio.Developer.Controls
         }
 
         #region events
-        private void JobOutlineControl_Unloaded(object sender, RoutedEventArgs e)
-        {
-            if (_parentScrollViewer == null)
-            {
-                _parentScrollViewer.ScrollChanged -= ScrollViewer_ScrollChanged;
-            }
-        }
 
         private void ScrollViewer_ScrollChanged(object sender, ScrollChangedEventArgs e)
         {
@@ -87,6 +79,7 @@ namespace Tango.MachineStudio.Developer.Controls
             if (_parentScrollViewer == null)
             {
                 _parentScrollViewer = this.FindAncestor<ScrollViewer>();
+                _parentScrollViewer.ScrollChanged -= ScrollViewer_ScrollChanged;
                 _parentScrollViewer.ScrollChanged += ScrollViewer_ScrollChanged;
             }
             else if (_viewportHeight == 0)