v4.0.0 (#1357)

Source/MQTTnet.Extensions.ManagedClient/ConnectingFailedEventArgs.cs

@@ -0,0 +1,21 @@
+using System;
+using MQTTnet.Client;
+
+namespace MQTTnet.Extensions.ManagedClient
+{
+    public sealed class ConnectingFailedEventArgs : EventArgs
+    {
+        public ConnectingFailedEventArgs(MqttClientConnectResult connectResult, Exception exception)
+        {
+            ConnectResult = connectResult;
+            Exception = exception;
+        }
+
+        /// <summary>
+        /// This is null when the connection was failing and the server was not reachable.
+        /// </summary>
+        public MqttClientConnectResult ConnectResult { get; }
+
+        public Exception Exception { get; }
+    }
+}