diff --git a/EuroTran/EasyBL.WEBAPP/ShowEasy/ExhibMaintain_QryService.cs b/EuroTran/EasyBL.WEBAPP/ShowEasy/ExhibMaintain_QryService.cs
index 513c1b6..89b7fbb 100644
--- a/EuroTran/EasyBL.WEBAPP/ShowEasy/ExhibMaintain_QryService.cs
+++ b/EuroTran/EasyBL.WEBAPP/ShowEasy/ExhibMaintain_QryService.cs
@@ -1660,8 +1660,7 @@ namespace EasyBL.WEBAPP.SYS
 
                 List<CategoryDTO> MainCategoryList = Exhibition.MainCategories;
 
-                ExhibitionDTO ExhibDTO = new ExhibitionDTO();
-
+                // Create categories
                 foreach (var MainCategory in MainCategoryList)
                 {
 
@@ -1670,20 +1669,33 @@ namespace EasyBL.WEBAPP.SYS
                     rsCategoryExhibition.CategoryID = MainCategory.CategoryID;
                     rsCategoryExhibition.CategoryName = MainCategory.CategoryName;
 
-                    rsCategoryExhibition.ExhibitionDic[Exhibition.ExhibitionID] = Exhibition;
-
                     rsResult[MainCategory.CategoryID] = rsCategoryExhibition;
 
                 }
 
             }
 
+            // add Exhibition into categories
+            foreach (var Exhibition in rsExhibitionList)
+            {
+                List<CategoryDTO> MainCategoryList = Exhibition.MainCategories;
+
+                foreach (var MainCategory in MainCategoryList) {
+
+                    rsResult[MainCategory.CategoryID].ExhibitionDic[Exhibition.ExhibitionID] = Exhibition;
+
+                }
+
+            }
+
+            // Convert Dic to List
             foreach (KeyValuePair<string, CategoryExhibitionDTO> CM in rsResult)
             {
 
                 var sCategoryID = CM.Key;
 
-                rsResult[sCategoryID].ExhibitionList = rsResult[sCategoryID].ExhibitionDic.Values.ToList();
+                rsResult[sCategoryID].ExhibitionList = rsResult[sCategoryID].ExhibitionDic.Values
+                    .OrderByDescending(o => o.StartDate).ToList();
 
             }