Merge pull request #100 from punker76/83-dragdrop-mouse-release-issue

do nothing if mouse left button is released
punker76 · May 28, 2014 · eb46441 · eb46441
2 parents 5a67d8a + d62acba
commit eb46441
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/GongSolutions.Wpf.DragDrop/DragDrop.cs b/GongSolutions.Wpf.DragDrop/DragDrop.cs
@@ -668,6 +668,14 @@ private static void DragSource_PreviewMouseLeftButtonUp(object sender, MouseButt
     private static void DragSource_PreviewMouseMove(object sender, MouseEventArgs e)
     {
       if (m_DragInfo != null && !m_DragInProgress) {
+
+        // do nothing if mouse left button is released
+        if (e.LeftButton == MouseButtonState.Released)
+        {
+          m_DragInfo = null;
+          return;
+        } 
+
         var dragStart = m_DragInfo.DragStartPosition;
         var position = e.GetPosition((IInputElement)sender);