Update README.md

README.md

@@ -178,6 +178,8 @@ public class ButtonTestForm : AutoCleanForm
             if (call == null)
                 return;
 
+            message.Handled = true;
+
             switch (call.Value)
             {
                 case "button1":
@@ -212,6 +214,12 @@ public class ButtonTestForm : AutoCleanForm
 
                     await this.NavigateTo(st);
 
+                    break;
+
+                default:
+
+                    message.Handled = false;
+
                     break;
             }