From 97180c261258861b5b2b91609a71d044456625d7 Mon Sep 17 00:00:00 2001
From: Luke Edwards <luke@silverstripe.com>
Date: Fri, 2 Nov 2018 14:28:47 +1300
Subject: [PATCH] Fix readonly grid state always being truthy (#8562)

---
 src/Forms/GridField/GridField.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Forms/GridField/GridField.php b/src/Forms/GridField/GridField.php
index a180fa5dc..977d346dc 100644
--- a/src/Forms/GridField/GridField.php
+++ b/src/Forms/GridField/GridField.php
@@ -1029,7 +1029,7 @@ class GridField extends FormField
         }
 
         if ($request->getHeader('X-Pjax') === 'CurrentField') {
-            if ($this->getState()->Readonly) {
+            if ($this->getState()->Readonly === true) {
                 $this->performDisabledTransformation();
             }
             return $this->FieldHolder();