From f271a3c8059451f6b65ce75f290a522d57e5fbf3 Mon Sep 17 00:00:00 2001
From: brianlagunas_cp <XceedBoucherS@users.noreply.github.com>
Date: Thu, 3 Nov 2011 13:32:39 +0000
Subject: [PATCH] PropertyGrid: fixed possible null reference exception nwhen
 setting the Filter

---
 .../PropertyGrid/Implementation/PropertyItemCollection.cs      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItemCollection.cs b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItemCollection.cs
index d5762cea..5dd59f34 100644
--- a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItemCollection.cs
+++ b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItemCollection.cs
@@ -41,6 +41,9 @@ namespace Microsoft.Windows.Controls.PropertyGrid
 
         public void Filter(string text)
         {
+            if (text == null)
+                return;
+
             GetDefaultView().Filter = (item) => 
             {
                 var property = item as PropertyItem;