修改工单流程页面，订单列表增加工单按钮

OrderSupportTicket/LaunchDarkly.EventSource/EventSourceServiceCancelledException.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace LaunchDarkly.EventSource
+{
+    /// <summary>
+    /// General superclass for exceptions that caused the EventSource to disconnect or fail to establish
+    /// a connection.
+    /// </summary>
+    public class EventSourceServiceCancelledException : Exception
+    {
+
+        #region Public Constructors 
+
+        /// <summary>
+        /// Creates a new instance.
+        /// </summary>
+        /// <param name="message">the exception message</param>
+        public EventSourceServiceCancelledException(string message) : base(message) { }
+
+        /// <summary>
+        /// Creates a new instance with an inner exception.
+        /// </summary>
+        /// <param name="message">the exception message</param>
+        /// <param name="innerException">the inner exception</param>
+        public EventSourceServiceCancelledException(string message, Exception innerException) :
+            base(message, innerException)
+        { }
+
+        #endregion
+
+    }
+}