public ActionResult Settings()
 {
     var viewModel = new SettingViewModel();
     viewModel.SubscriptionId = AMUWHelper.GetAppSetting("Azure-SubscriptionId");
     viewModel.Credential = AMUWHelper.GetAppSetting("Azure-Credential");
     return View(viewModel);
 }
 public ActionResult Settings(SettingViewModel viewModel)
 {
     if (ModelState.IsValid)
     {
         Configuration webConfigApp = WebConfigurationManager.OpenWebConfiguration("~");
         //Modifying the AppKey from AppValue to SubscriptionId and Credential
         webConfigApp.AppSettings.Settings["Azure-SubscriptionId"].Value = viewModel.SubscriptionId;
         webConfigApp.AppSettings.Settings["Azure-Credential"].Value = viewModel.Credential;
         //Save the Modified settings of AppSettings.
         webConfigApp.Save();
         return RedirectToAction("Index");
     }
     return View();
 }