Comment Feed for Channel 9 - Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Sven — Sun, 28 Nov 2010 22:01:51 GMT

/appname;component/foldername/pagename doesn't work for me to navigate between pages.
What does work is simply /pagename (or /foldername/pagename for that matter). Perhaps they have updated that since you produced the vid..? (wouldn't be surprised if they did that in response to developers having a hard time with that unintuitive "/appname;component/" way with no assistance from VS whatsoever)

posted by Sven

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Clint — Fri, 03 Dec 2010 09:36:02 GMT

@Sven: You actually don't have to do it that way. There is a much easier way. For this example if you just had your NavigateUri="/View/Page1.xaml" you'd be fine. This also would work if you did NavigateService.

NavigationService.Navigate(new Uri("/Views/Page1.xaml", UriKind.Relative));

posted by Clint

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

jamesoneill — Thu, 09 Dec 2010 14:49:03 GMT

it is COLON not SEMI colon in the path. The video was just clear enough to see that although bob says semi colon it might be a colon and after an hour of messaging about thinking I had the terms in the path wrong, I tried /appname:folder/filename.xaml and it worked.

posted by jamesoneill

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

send2sev — Sun, 12 Dec 2010 21:27:31 GMT

Hi there

I just wanted to ask if "AppPhoneService.State["value"]" is the way to keep values like Sessions in asp.net or no. Is there anything else like Sessions here?

posted by send2sev

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Brendan — Sat, 18 Dec 2010 03:23:05 GMT

Like Sven the "/NavigatingBetweenP..." does not work (using VS2010 VB .NET) but simply "/folder/file" does work.

posted by Brendan

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Mintydog — Tue, 11 Jan 2011 21:04:57 GMT

I tried mine with colon : and it didnt work, then with semi colon ; and it didnt work. then all I did was changed the p in page1.xaml to a capital and it worked, then when I went back to the URI it was in lower case and it still worked. very strange. But cool video anyway

posted by Mintydog

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Jaguma — Sat, 05 Feb 2011 00:20:49 GMT

Brilliant. Thanks for this. I have been following your tutorials since the first one. They have been the BEST tutorials for any programming language I have found :)

posted by Jaguma

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

made_rdj — Tue, 22 Feb 2011 14:49:49 GMT

I have a question related to the final part of this tutorial where Bob overrode the navigate to/from methods. He did this in order to ensure that previous input was stored and displayed correctly after navigating back through the hyperlink button. He stated that he needed to do this as the hyperlink button caused a new instance of the mainpage to be created.

I am presuming that overriding the methods does not prevent the creation of a new main page instance but simply populates the new instance with the correct data.

Does this mean that the application will now have 2 instances of main page loaded in memory? If yes, How do you ensure that your navigation from a hyperlink returns to the already instantiated page?

You could possibly create an application with many means of navigating to a given page. Having multiple instance of the same page loaded into memory seems rather wasteful.

posted by made_rdj

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Sewoldt — Wed, 09 Mar 2011 06:42:00 GMT

@made_rdj Those were so interesting questions. I tried to guess some answers. I think that when you navigate away from a page, that instance of the page is always destroyed. It seems logical because the page is no longer shown, and when you navigate again into the page, another instance of the page is created, so, there is always only one instance of that page. When you navigate back to the page by using the back button, a new instance of the page is created, but is populated with data that Silverlight stored somewhere. I guess you're always getting a fresh instance of the page (populated with data or no depending on whether you are using the back button or a hyperlink) and there are no unreachable multiple instances of the page wasting the memory.

posted by Sewoldt

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

YanivC — Sat, 14 May 2011 19:57:13 GMT

Wondering why he went his route with vb.net when this works fine:
Dim str as String = String.Empty
NavigationContext.QueryString.TryGetValue("language", str)

posted by YanivC

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Mr_Smitty0 — Mon, 20 Jun 2011 23:10:33 GMT

Quick question if I may. When using the "NavigationService" class there is a method called... GoBack(). Is there a reason it was not covered in this video? Say... maybe can present some unwanted issues? Or is it just one of those "Well here is another way to achieve the same result"?

private void button1_Click(object sender, RoutedEventArgs e)
        {
            NavigationService.GoBack();
        }

Great videos guys!!!

posted by Mr_Smitty0

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Jeni — Mon, 01 Aug 2011 13:00:22 GMT

I have a question related to this video.
Should we use only hyperlink button to navigate between the pages?
cant we use button control? suppose if i want to go to next page after i click on the button,how can i do that? can anyone plsss tell me...

posted by Jeni

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Adi4champ — Tue, 02 Aug 2011 10:05:35 GMT

@Jeni.
u can use button in place of hyperlink.Code is like that:-

NavigationService.Navigate(new Uri("/AppName;component/Page.xaml", UriKind.Relative));

posted by Adi4champ

Re: Navigating and Passing Data between XAML Pages - Day 3 - Part 3

Nishant — Mon, 05 Sep 2011 01:42:28 GMT

If I may ask then have a look at this article which has defined all the techniques with samples to pass data among pages in WP7.

http://nishantcop.blogspot.com/2011/08/passing-data-between-pages-in-windows.html

Rgds
Nishant

posted by Nishant