From febca2e36407e6c7acddb420606d901f28a4b4a9 Mon Sep 17 00:00:00 2001
From: ydong10 <ydong10@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 5 Dec 2011 12:45:45 +0000
Subject: [PATCH] Disable change value for grayout or readonly menu.
 Signed-off-by: ydong10 Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12817 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Universal/SetupBrowserDxe/Ui.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
index ebe8fae2cc..ca2ec3b169 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
@@ -2876,6 +2876,11 @@ UiDisplayMenu (
 
       switch (Key.UnicodeChar) {
       case CHAR_CARRIAGE_RETURN:
+        if(MenuOption->GrayOut || MenuOption->ReadOnly) {
+          ControlFlag = CfReadKey;
+          break;
+        }
+
         ScreenOperation = UiSelect;
         gDirection      = 0;
         break;
@@ -2890,7 +2895,7 @@ UiDisplayMenu (
         // If the screen has no menu items, and the user didn't select UiReset
         // ignore the selection and go back to reading keys.
         //
-        if(IsListEmpty (&gMenuOption)) {
+        if(IsListEmpty (&gMenuOption) || MenuOption->GrayOut || MenuOption->ReadOnly) {
           ControlFlag = CfReadKey;
           break;
         }
@@ -2943,7 +2948,7 @@ UiDisplayMenu (
           }
           
           ASSERT(MenuOption != NULL);
-          if (MenuOption->ThisTag->Operand == EFI_IFR_CHECKBOX_OP && !MenuOption->GrayOut) {
+          if (MenuOption->ThisTag->Operand == EFI_IFR_CHECKBOX_OP && !MenuOption->GrayOut && !MenuOption->ReadOnly) {
             ScreenOperation = UiSelect;
           }
         }
-- 
2.39.2