From 6ae92b0b29c2e0c62800cff1d8e1ac9a99224140 Mon Sep 17 00:00:00 2001
From: FlorianDahn <ich@florian-dahn.de>
Date: Sun, 4 Jun 2023 17:15:30 +0200
Subject: [PATCH] Bugfix for TaggedButtonGrid in combination with AutoCleanForm

---
 TelegramBotBase/Base/FormBase.cs                    | 6 ++++++
 TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/TelegramBotBase/Base/FormBase.cs b/TelegramBotBase/Base/FormBase.cs
index 7557348..4b22b1c 100644
--- a/TelegramBotBase/Base/FormBase.cs
+++ b/TelegramBotBase/Base/FormBase.cs
@@ -447,4 +447,10 @@ public class FormBase : IDisposable
             Controls.Remove(c);
         }
     }
+
+    /// <summary>
+    /// Returns if this instance is a subclass of AutoCleanForm. Necessary to prevent message deletion if not necessary.
+    /// </summary>
+    public bool IsAutoCleanForm() => this.GetType().IsSubclassOf(typeof(AutoCleanForm));
+
 }
\ No newline at end of file
diff --git a/TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs b/TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs
index c12aced..9db6a87 100644
--- a/TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs
+++ b/TelegramBotBase/Controls/Hybrid/TaggedButtonGrid.cs
@@ -455,7 +455,7 @@ public class TaggedButtonGrid : MultiView
                     if (result.MessageText == "📁")
                     {
                         //Remove button click message
-                        if (DeletePreviousMessage)
+                        if (DeletePreviousMessage && !Device.ActiveForm.IsAutoCleanForm())
                         {
                             await Device.DeleteMessage(result.MessageId);
                         }