diff --git a/workflow/engine/controllers/appProxy.php b/workflow/engine/controllers/appProxy.php
index a68a97955..45133f601 100644
--- a/workflow/engine/controllers/appProxy.php
+++ b/workflow/engine/controllers/appProxy.php
@@ -147,6 +147,20 @@ class AppProxy extends HttpProxyController
             throw new Exception( G::LoadTranslation( 'ID_NO_PERMISSION_NO_PARTICIPATED' ) );
         }
 
+        if ($httpData->action == 'sent') { // Get the last valid delegation for participated list
+            $criteria = new Criteria();
+            $criteria->addSelectColumn(AppDelegationPeer::DEL_INDEX);
+            $criteria->add(AppDelegationPeer::APP_UID, $httpData->appUid);
+            $criteria->add(AppDelegationPeer::DEL_FINISH_DATE, null, Criteria::ISNULL);
+            $criteria->addDescendingOrderByColumn(AppDelegationPeer::DEL_INDEX);
+            if (AppDelegationPeer::doCount($criteria) > 0) {
+                $dataset = AppDelegationPeer::doSelectRS($criteria);
+                $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
+                $dataset->next();
+                $row = $dataset->getRow();
+                $httpData->delIndex = $row['DEL_INDEX'];
+            }
+        }
         $applicationFields = $case->loadCase( $httpData->appUid, $httpData->delIndex );
         $process = new Process();
         $processData = $process->load( $applicationFields['PRO_UID'] );
@@ -188,6 +202,20 @@ class AppProxy extends HttpProxyController
             $processData = $_SESSION['_processData'];
             unset( $_SESSION['_processData'] );
         } else {
+            if ($httpData->action == 'sent') { // Get the last valid delegation for participated list
+                $criteria = new Criteria();
+                $criteria->addSelectColumn(AppDelegationPeer::DEL_INDEX);
+                $criteria->add(AppDelegationPeer::APP_UID, $httpData->appUid);
+                $criteria->add(AppDelegationPeer::DEL_FINISH_DATE, null, Criteria::ISNULL);
+                $criteria->addDescendingOrderByColumn(AppDelegationPeer::DEL_INDEX);
+                if (AppDelegationPeer::doCount($criteria) > 0) {
+                    $dataset = AppDelegationPeer::doSelectRS($criteria);
+                    $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
+                    $dataset->next();
+                    $row = $dataset->getRow();
+                    $httpData->delIndex = $row['DEL_INDEX'];
+                }
+            }
             $applicationFields = $case->loadCase( $httpData->appUid, $httpData->delIndex );
             $process = new Process();
             $processData = $process->load( $applicationFields['PRO_UID'] );
diff --git a/workflow/engine/methods/cases/casesListExtJs.php b/workflow/engine/methods/cases/casesListExtJs.php
index 46c34be55..27bbc9fb0 100755
--- a/workflow/engine/methods/cases/casesListExtJs.php
+++ b/workflow/engine/methods/cases/casesListExtJs.php
@@ -428,9 +428,6 @@ function getParticipated ()
     );
     $caseColumns[] = array ('header' => G::LoadTranslation( 'ID_TASK' ),'dataIndex' => 'APP_TAS_TITLE','width' => 120
     );
-    //$caseColumns[] = array( 'header' => G::LoadTranslation('ID_SENT_BY'),     'dataIndex' => 'APP_DEL_PREVIOUS_USER', 'width' => 120 );
-    $caseColumns[] = array ('header' => G::LoadTranslation( 'ID_CURRENT_USER' ),'dataIndex' => 'APP_CURRENT_USER','width' => 120,'sortable' => false
-    );
     $caseColumns[] = array ('header' => G::LoadTranslation( 'ID_LAST_MODIFY' ),'dataIndex' => 'APP_UPDATE_DATE','width' => 80
     );
     $caseColumns[] = array ('header' => G::LoadTranslation( 'ID_STATUS' ),'dataIndex' => 'APP_STATUS','width' => 50
diff --git a/workflow/engine/templates/app/main.js b/workflow/engine/templates/app/main.js
index a1e06257f..874eaae80 100644
--- a/workflow/engine/templates/app/main.js
+++ b/workflow/engine/templates/app/main.js
@@ -390,7 +390,7 @@ function statusBarMessage( msg, isLoading, success ) {
 /* Case Notes - End */
 
 /* Case Summary - Start */
-var openSummaryWindow = function(appUid, delIndex)
+var openSummaryWindow = function(appUid, delIndex, action)
 {
   if (summaryWindowOpened) {
     return;
@@ -400,12 +400,13 @@ var openSummaryWindow = function(appUid, delIndex)
     url : '../appProxy/requestOpenSummary',
     params : {
       appUid  : appUid,
-      delIndex: delIndex
+      delIndex: delIndex,
+      action: action
     },
     success: function (result, request) {
       var response = Ext.util.JSON.decode(result.responseText);
       if (response.success) {
-        var sumaryInfPanel = PMExt.createInfoPanel('../appProxy/getSummary', {appUid: appUid, delIndex: delIndex});
+        var sumaryInfPanel = PMExt.createInfoPanel('../appProxy/getSummary', {appUid: appUid, delIndex: delIndex, action: action});
         sumaryInfPanel.setTitle(_('ID_GENERATE_INFO'));
 
         var summaryWindow = new Ext.Window({
diff --git a/workflow/engine/templates/cases/casesList.js b/workflow/engine/templates/cases/casesList.js
index 14d0ca717..be86dcea1 100644
--- a/workflow/engine/templates/cases/casesList.js
+++ b/workflow/engine/templates/cases/casesList.js
@@ -26,7 +26,7 @@ var textJump;
 var caseSummary = function() {
   var rowModel = grid.getSelectionModel().getSelected();
   if (rowModel) {
-    openSummaryWindow(rowModel.data.APP_UID, rowModel.data.DEL_INDEX);
+    openSummaryWindow(rowModel.data.APP_UID, rowModel.data.DEL_INDEX, action);
   }
   else {
     msgBox(_('ID_INFORMATION'), _('ID_SELECT_ONE_AT_LEAST'));
@@ -472,7 +472,7 @@ Ext.onReady ( function() {
 
   var renderSummary = function (val, p, r) {
     var summaryIcon = '<img src="/images/ext/default/s.gif" class="x-tree-node-icon ss_layout_header" unselectable="off" id="extdd-17" ';
-    summaryIcon += 'onclick="openSummaryWindow(' + "'" + r.data['APP_UID'] + "'" + ', ' + r.data['DEL_INDEX'] + ')" title="' + _('ID_SUMMARY') + '" />';
+    summaryIcon += 'onclick="openSummaryWindow(' + "'" + r.data['APP_UID'] + "'" + ', ' + r.data['DEL_INDEX'] + ', action)" title="' + _('ID_SUMMARY') + '" />';
     return summaryIcon;
   };