I have a silverlight navigation application where I load and initialize a lot of things in the MainPage.aspx loading.
All the Pages (views) are dependent on the loading of that data.
But really often my users add an internet shortcut on their desktop for my application. but the link often points to a specific page like that :
http://myServer/MyApp/default.aspx#/TheView
I want to force the users to go to the "Default" view (and ignore the #/view parameter) when the application Starts up.
Whats the best way I can do that?
I don't think it's a good idea to 'avoid' links. You should construct the application in a way when it's not a problem.
For example you can send a message from your main logic when everything loaded, and until that message you can disable the appropriate UI (while waiting for data). Messenger (or EventAggregator in Prism) is a publisher-subscriber pattern to achive communication between components without reference to each other. If you don't know it yet, take a look at MVVMLight Messenger or Prism EventAggregator
But if the first option is not okay for you, you can play with the Frame control's JournalOwnership property:
http://msdn.microsoft.com/en-us/library/system.windows.controls.frame.journalownership(v=vs.95).aspx
http://msdn.microsoft.com/en-us/library/system.windows.navigation.journalownership(v=vs.95).aspx
OwnsJournal is your value, because it does not integrate with the browser journal and the url stays the original so your users can't bookmark a 'sub page'.
You can also implement your own journal mechanism.
Another :), but pretty ugly option would be if you track the first page load (in OnNavigatedTo Page events for example), and at the very first request you manually navigate to the main page. Or in the App.xaml.cs, when application starts up you forward the page request.
But I recommend the first one.
Related
Our application is a one-page application created using ExtJs. For any user action, the browser tab is never reloaded and all the actions are performed using ajax. A user can open/close multiple ExtJs windows/panels within the same browser tab, and this way everything remains confined to the same browser tab.
Now, we need to integrate payment gateway in the application, which involves redirecting the user to the bank website and having her brought back to our application.
The issue is that when browser redirects the user, then all the application javascript code along with panels and windows get destroyed, and when the user comes back to the application then she finds it to be different from one she left.
As a solution to this, we were thinking of using following two appraoches:
Option 1. Maintaining the state of application - When user leaves for the bank's website then somehow we maintain the state of application - like which windows are opened carrying what data, which variables have which values etc.. and when user returns back, we generate the same application state for her.
Option 2. Have a browser pop-up window for payment gateway - We intend to provide a button which will open a small pop-up window carrying the transaction details, and in this pop-up window the entire payment gateway process will take place taking care of redirection and everything.
Option 1 is proving to be very cumbersome and complicated as maintaining the exact state is not getting feasible.
For Option 2, we are not sure if this is safe and possible?
Has anyone implemented such an approach earlier. Otherwise, what are the other options which we can go for?
Thanks for any help in advance.
I faced the problem and I implemented it using websocket/polling in the main application while a new window pops up for the payment.
After the payment is successful the main application will be notified.
That way each payment runs in it own sandbox totally unbound from the main application which makes maintenance quite easy. Note that our backend create a new session for each payment using the existing one.
I think it is not uncommon to open new windows for payment that's why I decided to go this.
I'd like to use the Notification API to create toast notifications for a Silverlight app designed to run both in and out of the browser, but the NotificationWindow class is only available OOB.
Does there exist anything that can replicate the behaviour inside the app? My idea is to have a container in the bottom right of the screen overlaying all other content. Then, create a wrapper which detects OOB-mode, passing params to the Notification API if possible, or populating and showing my own container if not. Is there anything that does this available?
It seems strange that MS chose not to implement something like this, as has been pointed out before.
Displaying a notification in browser is simple. You just need to use a popup and make it appear in the right place. See the following post as an example.
Now the difference with that approach is that the notification will show inside the browser. In OOB it shows outside the window and it's visible even if the windows is minimized. Due to security reasons it's not possible to directly do this.
Out of interest, Chrome Applications like Tweetdeck and Gmail, are able to display notifications outside of the browser. I think this might be a possiblity, but not exactly a Silverlight and cross browser solution.
This might not be possible but I thought I'd check with everyone.
Is it possible to load a WebBrowserTask on WP7 but to have the url entry box collapsed? I'd also like to set IsHitVisble to false?
The reason I want to do this is to load a url (through databinding) but ensure that the user can't browse to other links on the page. I also need to keep the phones share control in the tool bar so I can't just use a webbrowser control and set the source to the url.
Does anyone have any ideas?
Not possible. You can use a WebBrowserControl inside your own app, but it's not recommended.
Basically such odd/weird limitations as this, don't belong in any modern day craftsmanship. And thus why it isn't a possibility (thanks Microsoft!)
I want to have two separate interfaces to my website, one that is silverlight, and one that is normal html for people who don't have Silverlight, and for search engines. They would have exactly the same content, the Silverlight one would just be a richer experience.
If someone with Silverlight copies the URL to a certain page, it will have a '#' in it (app#page1). If they then want to link to that page on their blog or something, it will have the # in it, and a search engine probably wouldn't consider it as a separate page from app#page2.
Is there any way to make the navigation from within Silverlight update the URL with a '/' instead of a '#', without actually loading a separate page? This way the URLs in the address bar appear like a normal websites' URLs ('app/page1', 'app/page2').
Is there any way to make the navigation from within Silverlight update the URL with a '/' instead of a '#', without actually loading a separate page? This way the URLs in the address bar appear like a normal websites' URLs ('app/page1', 'app/page2').
Unfortunately, no. The reason that Silverlight navigation URLs use # is that you can move around within a page by moving to an anchor location. If you used a full URL with '/' separators, it would cause the browser to navigate to a new page, which would reload your Silverlight application. This would basically unload your Silverlight application, and load a new one with the new URL.
The reason they use the # sign is because this is interpreted by the browser as moving to a location in the page, otherwise would reload the page.
As far as search engine implications I'm not sure either way. Maybe someone more experienced with SEO can chime in on that.
However I'm sure you can get the behavior you're looking for, just may take some trickiness on your end. Another way pass information to the Silverlight client runtime is using Query String parameters. You can access query string params using the System.Windows.Browser.HtmlPage.Document.QueryString collection, you could then load the Page or User control with the content you desire based on that parameter.
As far as mimicking a folder structure using '/'s. I know there are ways to do this using custom web server settings / HTTPModules. I assume you're using IIS/ASP.Net, I would look into this from Guthrie:
http://weblogs.asp.net/scottgu/archive/2007/02/26/tip-trick-url-rewriting-with-asp-net.aspx
Takes a bit of hackery, but if you're really set on doing it I'm sure you could. You will also face the things the above poster mentioned, if you attempt to do use the same logic during a session. This may work though for just the deep linking aspect you're looking for.
I have a WPF webbrowser control which navigates the user to a registration site. After the user registers, a collection of headers are sent back alongwith the "finished registration" page.
I have tried the Navigated event, and tried accessing WebResponse property in the event arguments but it's always null.
Is there any other way to access the headers sent?
After quite a lot of reading, I figured out that WPF web browser actually wraps around the WinForm web browser which inturn wraps around a COM dll (which is even used by Internet Explorer).
Now this COM dll provides a lot of interfaces which are not exposed by any of the wrapper controls. So those who need more control need to implement these interfaces.
I found a browser which implements a lot of these interfaces and neatly provides a lot functionality. Used it and it's working fine. http://www.codeproject.com/KB/miscctrl/csEXWB.aspx
It talks about implemnting a PassthroughAPP package to get the response headers.
I dont think you can access headers like that, best thing to do is, either use Hidden Fields of the form or you can pass on your cookie ASP.NET_SessionID from your finished page to your WPF app, and inside WPF app you can make custom request to your url with same ASP.NET_SessionID cookie where you will continue same session and you will be able to query responses you desire throught WebResponse.