偏好设置弹窗-去除异常逻辑

PDF Office/ViewModels/Dialog/SettingsDialogViewModel.cs

@@ -1049,7 +1049,8 @@ namespace PDF_Master.ViewModels.Dialog
 
                 Win32Helper.RegisterDefaultApp(IsDefualtApp);
                 Settings.Default.Save();
-                RequestClose.Invoke(new DialogResult());
+                //弹窗已关闭调用再次关闭方法会异常
+                //RequestClose.Invoke(new DialogResult());
             }
             catch { }
         }