Get commands count by article for the selected subscriber

KDatabase.cs

@@ -118,12 +118,12 @@ GROUP BY d.publisher_db
         /// </summary>
         /// <param name="d">Your smo database (distribution)</param>
         /// <returns>a datatable</returns>
-        public static DataTable GetReplicationCommandsByArticle(this smo.Database d)
+        public static DataTable GetReplicationCommandsByArticle(this smo.Database d, string subscriber)
         {
             DataTable dt = new DataTable();
             if (d.IsDistributor())
             {
-                string sql = @"SELECT s.name AS [Subscriber]
+                string sql = string.Format(@"SELECT s.name AS [Subscriber]
 	, sub.publisher_db AS [Database]
 	, a.article AS [Article]
 	, COUNT(*) AS [Commands Count]
@@ -134,11 +134,12 @@ INNER JOIN dbo.MSarticles a (NOLOCK) ON sub.publisher_id = a.publisher_id
         AND sub.publication_id = a.publication_id
         AND sub.article_id = a.article_id
 	INNER JOIN sys.servers s ON sub.subscriber_id = s.server_id
+WHERE s.name = '{0}'
 GROUP BY s.name
 	, sub.publisher_db
 	, a.article
 ORDER BY [Commands Count] DESC
-    , [Subscriber]";
+    , [Subscriber]", subscriber);
                 dt = d.ExecuteWithResults(sql).Tables[0];
             }
             return dt;