fixed #1117

CHANGELOG.TXT

@@ -2,6 +2,7 @@
 
 Fixes:
 ------
+#1117: Duplicate panel created when "Reconnect on Startup" and "Create Empty Panel" settings enabled
 #1115: Exception when changing from xml data storage to SQL
 #1110: Pressing Delete button during connection rename attempts to delete the connection instead of the text
 #1106: Inheritance does not work when parent has C# default type set

mRemoteV1/UI/Forms/frmMain.cs

@@ -184,7 +184,10 @@ namespace mRemoteNG.UI.Forms
                 var panelName = !string.IsNullOrEmpty(Settings.Default.StartUpPanelName)
                     ? Settings.Default.StartUpPanelName
                     : Language.strNewPanel;
-                new PanelAdder().AddPanel(panelName);
+
+                var panelAdder = new PanelAdder();
+                if (!panelAdder.DoesPanelExist(panelName))
+                    panelAdder.AddPanel(panelName);
             }
         }
 

mRemoteV1/UI/Panels/PanelAdder.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections;
+using System.Linq;
 using System.Windows.Forms;
 using mRemoteNG.App;
 using mRemoteNG.Messages;
@@ -30,6 +31,12 @@ namespace mRemoteNG.UI.Panels
             }
         }
 
+        public bool DoesPanelExist(string panelName)
+        {
+            return Runtime.WindowList?.OfType<ConnectionWindow>().Any(w => w.TabText == panelName)
+                ?? false;
+        }
+
         private static void ShowConnectionWindow(ConnectionWindow connectionForm)
         {
             connectionForm.Show(FrmMain.Default.pnlDock, DockState.Document);