Set parameter to notification

Question

I'm using C# and Windows Phone 8.1 as Universal app. I can send notifications from background by this code:

    void ShowNotification(string title, string text)
    {
        ToastTemplateType toastTemplate = ToastTemplateType.ToastText02;

        XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate);
        XmlNodeList textElements = toastXml.GetElementsByTagName("text");
        textElements[0].AppendChild(toastXml.CreateTextNode(title));
        textElements[1].AppendChild(toastXml.CreateTextNode(text));

        ToastNotificationManager.CreateToastNotifier().Show(new ToastNotification(toastXml));
    }

I wanna when user tapped on these notifications in action center, that message I wrote in notification shows on a textBlock in my MainPage but I don't know how can I set a parameter to do this. I used this code in MainPage but parameter is empty:

    protected override void OnNavigatedTo(NavigationEventArgs e)
    {
        if (e != null && e.Parameter != null)
        {
            Debug.WriteLine("MainPage.OnNavigatedTo.Parameter: " + e.Parameter.ToString());
        }
    }

thanks

Answer 1

You need to specify app launch parameters like:

IXmlNode toastNode = toastXml.SelectSingleNode("/toast");
((XmlElement)toastNode).SetAttribute("launch", "{\"type\":\"toast\",\"param1\":\"12345\",\"param2\":\"67890\"}");

Then in app's onlaunched event, navigate to mainpage with the parameter you get as below:

rootFrame.Navigate(typeof(MainPage), args.Arguments);