From 138199e8114e55cafeefefe57afd4e6153412574 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexei=20Ag=C3=BCero=20Alba?= <alexeiagueroalba@gmail.com>
Date: Mon, 5 Dec 2022 17:12:53 -0500
Subject: [PATCH] Correctly implement Dispose pattern in FormBase for use on
 derived classes

---
 TelegramBotBase/Base/FormBase.cs | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/TelegramBotBase/Base/FormBase.cs b/TelegramBotBase/Base/FormBase.cs
index 291e733..d3c2cba 100644
--- a/TelegramBotBase/Base/FormBase.cs
+++ b/TelegramBotBase/Base/FormBase.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
@@ -17,7 +16,6 @@ namespace TelegramBotBase.Form
     /// </summary>
     public class FormBase : IDisposable
     {
-
         public NavigationController NavigationController { get; set; }
 
         public DeviceSession Device { get; set; }
@@ -432,14 +430,29 @@ namespace TelegramBotBase.Form
             }
         }
 
+        protected virtual void Dispose(bool disposing)
+        {
+            if (this.IsDisposed)
+            {
+                return;
+            }
+            
+            if (disposing)
+            {
+                this.Client = null;
+                this.Device = null;                
+            }
+            
+            this.IsDisposed = true;
+        }
+        
         /// <summary>
         /// Cleanup
         /// </summary>
         public void Dispose()
         {
-            this.Client = null;
-            this.Device = null;
-            this.IsDisposed = true;
+            Dispose(true);
+            GC.SuppressFinalize(this);
         }
     }
 }