From a1fd5952edcd147bbe08e0c5625f22e08ed37299 Mon Sep 17 00:00:00 2001
From: Siegfried Pammer <siegfriedpammer@gmail.com>
Date: Wed, 27 Apr 2016 23:00:41 +0900
Subject: [PATCH] (SharpTreeView) add LockUpdates method to SharpTreeView

---
 SharpTreeView/SharpTreeView.cs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/SharpTreeView/SharpTreeView.cs b/SharpTreeView/SharpTreeView.cs
index 83b82cc12..093e942ba 100644
--- a/SharpTreeView/SharpTreeView.cs
+++ b/SharpTreeView/SharpTreeView.cs
@@ -122,6 +122,27 @@ namespace ICSharpCode.TreeView
 		TreeFlattener flattener;
 		bool updatesLocked;
 
+		public IDisposable LockUpdates()
+		{
+			return new UpdateLock(this);
+		}
+
+		class UpdateLock : IDisposable
+		{
+			SharpTreeView instance;
+
+			public UpdateLock(SharpTreeView instance)
+			{
+				this.instance = instance;
+				this.instance.updatesLocked = true;
+			}
+
+			public void Dispose()
+			{
+				this.instance.updatesLocked = false;
+			}
+		}
+
 		void Reload()
 		{
 			if (flattener != null) {