X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FSetupBrowserDxe%2FPresentation.c;fp=MdeModulePkg%2FUniversal%2FSetupBrowserDxe%2FPresentation.c;h=b8c5a3919ef1629a11d8127a3143fd1850efba5c;hb=e6557276f0cf3c114dc881be2478cf724b171e39;hp=251025b309d59057046456975ffcb940bd2a54fe;hpb=1e9c72295813e914edd0f80cd105bb5ff83823d2;p=mirror_edk2.git

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
index 251025b309..b8c5a3919e 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
@@ -2066,6 +2066,11 @@ ProcessCallBackFunction (
         //
         Status = ValueChangedValidation (gCurrentSelection->FormSet, gCurrentSelection->Form, Statement);
         if (!EFI_ERROR (Status)) {
+          //
+          //check whether the question value  changed compared with edit buffer before updating edit buffer
+          // if changed, set the ValueChanged flag to TRUE,in order to trig the CHANGED callback function
+          //
+          IsQuestionValueChanged(gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithEditBuffer);
           //
           // According the spec, return value from call back of "changing" and 
           // "retrieve" should update to the question's temp buffer.
@@ -2103,6 +2108,11 @@ ProcessCallBackFunction (
         //
         InternalStatus = ValueChangedValidation (gCurrentSelection->FormSet, gCurrentSelection->Form, Statement);
         if (!EFI_ERROR (InternalStatus)) {
+          //
+          //check whether the question value  changed compared with edit buffer before updating edit buffer
+          // if changed, set the ValueChanged flag to TRUE,in order to trig the CHANGED callback function
+          //
+          IsQuestionValueChanged(gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithEditBuffer);
           SetQuestionValue(FormSet, Form, Statement, GetSetValueWithEditBuffer);
         }
       }
@@ -2437,10 +2447,6 @@ SetupBrowser (
           }
         }
 
-        //
-        // Verify whether question value has checked, update the ValueChanged flag in Question.
-        //
-        IsQuestionValueChanged(gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithBuffer);
 
         if (!EFI_ERROR (Status) && 
             (Statement->Operand != EFI_IFR_REF_OP) && 
@@ -2449,6 +2455,11 @@ SetupBrowser (
           // Only question value has been changed, browser will trig CHANGED callback.
           //
           ProcessCallBackFunction(Selection, Selection->FormSet, Selection->Form, Statement, EFI_BROWSER_ACTION_CHANGED, FALSE);
+          //
+          //check whether the question value changed compared with buffer value
+          //if doesn't change ,set the ValueChanged flag to FALSE ,in order not to display the "configuration changed "information on the screen
+          //
+          IsQuestionValueChanged(gCurrentSelection->FormSet, gCurrentSelection->Form, Statement, GetSetValueWithBuffer);
         }
       } else {
         //