From 01fea07f3338288b58b5cd9fe6241df9167702be Mon Sep 17 00:00:00 2001
From: Christian Giesswein <christian@software.tirol>
Date: Fri, 15 Nov 2024 11:18:59 +0100
Subject: [PATCH] ThreadingProblem

---
 src/GongSolutions.WPF.DragDrop/DropTargetAdorner.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/GongSolutions.WPF.DragDrop/DropTargetAdorner.cs b/src/GongSolutions.WPF.DragDrop/DropTargetAdorner.cs
index 5b9aa963..ecfac16e 100644
--- a/src/GongSolutions.WPF.DragDrop/DropTargetAdorner.cs
+++ b/src/GongSolutions.WPF.DragDrop/DropTargetAdorner.cs
@@ -27,6 +27,12 @@ public DropTargetAdorner(UIElement adornedElement, IDropInfo dropInfo)
 
         public void Detatch()
         {
+            if (!m_AdornerLayer.Dispatcher.CheckAccess())
+            {
+                m_AdornerLayer.Dispatcher.Invoke(this.Detatch);
+                return;
+            }
+
             this.m_AdornerLayer.Remove(this);
         }