From 26d78d8ffffd5ef14c9063cb217fc3457842ab39 Mon Sep 17 00:00:00 2001
From: BDisp <bd.bdisp@gmail.com>
Date: Mon, 30 Oct 2023 17:15:54 +0000
Subject: [PATCH] Fixes #2944. TreeView ColorGetter not disposing sometimes
 causes unit test error.

---
 Terminal.Gui/Views/TreeView/TreeView.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Terminal.Gui/Views/TreeView/TreeView.cs b/Terminal.Gui/Views/TreeView/TreeView.cs
index ba63944118..b566608762 100644
--- a/Terminal.Gui/Views/TreeView/TreeView.cs
+++ b/Terminal.Gui/Views/TreeView/TreeView.cs
@@ -1433,6 +1433,13 @@ internal void OnDrawLine (DrawTreeViewLineEventArgs<T> e)
 			DrawLine?.Invoke (this, e);
 		}
 
+		/// <inheritdoc/>
+		protected override void Dispose (bool disposing)
+		{
+			base.Dispose (disposing);
+
+			ColorGetter = null;
+		}
 	}
 	class TreeSelection<T> where T : class {