@@ -43,5 +43,14 @@ namespace OpenTelemetry.Instrumentation.AspNet
         /// The type of this object depends on the event, which is given by the above parameter.</para>
         /// </remarks>
         public Action<Activity, string, object> Enrich { get; set; }
+
+        /// <summary>
+        /// Gets or sets an action that uses HttpContext information to set the appropriate activity DisplayName.
+        /// </summary>
+        /// <remarks>
+        /// <para>HttContext: the current HttpContext.</para>
+        /// <para><see cref="Activity"/>: the activity for which DisplayName has to be set.</para>
+        /// </remarks>
+        public Action<HttpContext, Activity> SetActivityDisplayName { get; set; }
     }
 }
// <copyright file="AspNetInstrumentationOptions.cs" company="OpenTelemetry Authors">
// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// </copyright>

using System;
using System.Diagnostics;
using System.Web;

namespace OpenTelemetry.Instrumentation.AspNet
{
    /// <summary>
    /// Options for ASP.NET instrumentation.
    /// </summary>
    public class AspNetInstrumentationOptions
    {
        /// <summary>
        /// Gets or sets a Filter function that determines whether or not to collect telemetry about requests on a per request basis.
        /// The Filter gets the HttpContext, and should return a boolean.
        /// If Filter returns true, the request is collected.
        /// If Filter returns false or throw exception, the request is filtered out.
        /// </summary>
        public Func<HttpContext, bool> Filter { get; set; }

        /// <summary>
        /// Gets or sets an action to enrich an Activity.
        /// </summary>
        /// <remarks>
        /// <para><see cref="Activity"/>: the activity being enriched.</para>
        /// <para>string: the name of the event.</para>
        /// <para>object: the raw object from which additional information can be extracted to enrich the activity.
        /// The type of this object depends on the event, which is given by the above parameter.</para>
        /// </remarks>
        public Action<Activity, string, object> Enrich { get; set; }
    }
}

this alone is not an improvement right? We already provide Enrich, which can be used by user to change DisplayName.