add a scanner, but this seems to be a wrong solution. Change open-source head

StgSharp.UserInterface/Attribute/PanelStateChangeBindingAttribute.cs

@@ -1,3 +1,10 @@
+// -----------------------------------------------------------------------------
+// file="PanelStateChangeBindingAttribute"
+// Project: StgSharp
+// Copyright (c) Nitload.
+// SPDX-License-Identifier: MIT
+// -----------------------------------------------------------------------------
+
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,11 +21,11 @@ namespace StgSharp.UserInterface
     {
 
         public string StatePath { get; } = string.IsNullOrWhiteSpace(statePath) ?
-                                   throw new ArgumentException("Value cannot be null or whitespace.", nameof(statePath)) :
+                                           throw new ArgumentException("Value cannot be null or whitespace.", nameof(statePath)) :
                                            statePath;
 
         public string PanelHostPath { get; } = string.IsNullOrWhiteSpace(panelHostPath) ?
-                                   throw new ArgumentException("Value cannot be null or whitespace.", nameof(panelHostPath)) :
+                                               throw new ArgumentException("Value cannot be null or whitespace.", nameof(panelHostPath)) :
                                                panelHostPath;
 
     }