diff --git a/EuroTran/EasyBL.WEBAPP/ShowEasy/CategoryService.cs b/EuroTran/EasyBL.WEBAPP/ShowEasy/CategoryService.cs
index 77d7104..4183d51 100644
--- a/EuroTran/EasyBL.WEBAPP/ShowEasy/CategoryService.cs
+++ b/EuroTran/EasyBL.WEBAPP/ShowEasy/CategoryService.cs
@@ -83,12 +83,12 @@ namespace EasyBL.WEBAPP.SYS
         /// </summary>
         /// <param name="i_crm"></param>
         /// <returns></returns>
-        public HttpResponseMessage GetExhibitionSubCategoryList(string sLanguageID, string sMainCategoryList)
+        public HttpResponseMessage GetExhibitionSubCategoryList(string sLanguageID, string sMainCategoryIDs)
         {
             RequestMessage i_crm = new RequestMessage();
             i_crm.ORIGID = ORGID;
             i_crm.DATA.Add("LanguageID", sLanguageID);
-            i_crm.DATA.Add("ParentIDs", sMainCategoryList);
+            i_crm.DATA.Add("ParentIDs", sMainCategoryIDs);
 
             SuccessResponseMessage srm = null;
             string sError = null;
@@ -185,12 +185,12 @@ namespace EasyBL.WEBAPP.SYS
         /// </summary>
         /// <param name="i_crm"></param>
         /// <returns></returns>
-        public HttpResponseMessage GetServiceSubCategoryList(string sLanguageID, string sMainCategoryList)
+        public HttpResponseMessage GetServiceSubCategoryList(string sLanguageID, string sMainCategoryIDs)
         {
             RequestMessage i_crm = new RequestMessage();
             i_crm.ORIGID = ORGID;
             i_crm.DATA.Add("LanguageID", sLanguageID);
-            i_crm.DATA.Add("ParentIDs", sMainCategoryList);
+            i_crm.DATA.Add("ParentIDs", sMainCategoryIDs);
 
             SuccessResponseMessage srm = null;
             string sError = null;
diff --git a/EuroTran/WebApp/Controllers/CategoryController.cs b/EuroTran/WebApp/Controllers/CategoryController.cs
index 0fe9c47..e3add32 100644
--- a/EuroTran/WebApp/Controllers/CategoryController.cs
+++ b/EuroTran/WebApp/Controllers/CategoryController.cs
@@ -23,9 +23,9 @@ namespace WebApp.Controllers
         }
 
         [HttpGet]
-        public HttpResponseMessage ExhibitionSub(string Lang, string MainCategories)
+        public HttpResponseMessage ExhibitionSub(string Lang, string MainCategoryIDs)
         {
-            return new CategoryService().GetExhibitionSubCategoryList(Lang, MainCategories);
+            return new CategoryService().GetExhibitionSubCategoryList(Lang, MainCategoryIDs);
         }
 
         [HttpGet]
@@ -35,9 +35,9 @@ namespace WebApp.Controllers
         }
 
         [HttpGet]
-        public HttpResponseMessage ServiceSub(string Lang, string MainCategories)
+        public HttpResponseMessage ServiceSub(string Lang, string MainCategoryIDs)
         {
-            return new CategoryService().GetServiceSubCategoryList(Lang, MainCategories);
+            return new CategoryService().GetServiceSubCategoryList(Lang, MainCategoryIDs);
         }
 
     }