System.Web 2.0.0.0 System.Enum This enumeration defines the values you can use when setting the property. Specifies the order in which trace messages are displayed. Field System.Web.Configuration.TraceDisplayMode Emit trace messages alphabetically by category. 2.0.0.0 Field System.Web.Configuration.TraceDisplayMode Emit trace messages in the order they were processed. 2.0.0.0