Merge pull request #1660 from BEXIS2/747-replace-primary-data-telerik…

…-table_2

#747 fix missing value issue by string and multi missing values

Components/DLM/BExIS.Dlm.Services/DataStructure/VariableManager.cs

@@ -601,7 +601,7 @@ public string getPlaceholder(TypeCode typeCode, List<MissingValue> missingValues
                     case TypeCode.String:
                         try
                         {
-                            int temp = DateTime.Now.GetHashCode();
+                            int temp = DateTime.Now.Ticks.GetHashCode();
                             return temp.ToString(format);
                         }
                         catch