Data transfer in page navigation

[somnathbanik]

Hi,
I have just started WP7. And trying to create some sample app. As I am very poor in C# so finding difficult to understand the examples.

1. I am trying to parse XML and display the content in list box
2. when i click on any of the list item I should see its detail in a new page.


I could do the first part , but not able to do the second one.
I can generate the client event but not able to pass the data to the second page to display.


Could you put some light on this please.

[somnathbanik]

I have checked and found that when I am assigning value to the {get; set;} property fro another class, its not assigning any value and thus i am getting an null exception.
Could any one please show me how can I assign value from one class to another using get, set property

[somnathbanik]

actually in one word, i am trying to get the values of the selected item in the listbox and display those values into an another page.
Please suggest how can i proceed.

[symbianyucca]

you could check chapter 6 from: http://www.microsoft.com/download/en....aspx?id=24519 basically you could store the data in application class and access it anywhere.. Basically the application class is accessible by any place of the application, similarly as the AppUI is with Symbian applications.

[somnathbanik]

you could check chapter 6 from: http://www.microsoft.com/download/en....aspx?id=24519 basically you could store the data in application class and access it anywhere.. Basically the application class is accessible by any place of the application, similarly as the AppUI is with Symbian applications.

Thank you Yucca, I got your point, and I must appreciate the way to explained me the application class comparing with the Symbian, so can I treat the Application class of WP7 as that of the Symbian Appui.cpp, I mean can I add code there and use it as a controller class, as I do I symbian?

As you know I am new to C# so I need to make the basic. But going through the whole C# language will take lot of time, so if you could share any link, tutorial, or articles that are needed for WP7, would be a great help for me.

[symbianyucca]

I would consider myself a novice on WP programming as well as C#, anyway best way to learn is to actually do programming.. Would not know best examples, would simply suggest searching for specific problems, and once you find any sites that you find usefull, then bookmark them..

For the controller question, according to my current knowledge (as limited as it is), the application class could indeed be used pretty much as AppUi class in this case.

[kamaljaiswal]

Hi,
As u have a list:
then u could
1: capture the tap event and get the selected index:
example:
private void ListBox_Tap(object sender, System.Windows.Input.GestureEventArgs e)
{
int selectedIndex = Storelistbox.SelectedIndex;

//the accordin to the selevcted index u could navigate to thjat respective xaml view.
// using pass on the message.
NavigationService.Navigate(new Uri( string.Format("/SecondPage.xaml?val={0}", ValueTextBox.Text), UriKind.Relative));

//similarly for going back u can use
NavigationService.GoBack();

}
Check the msdn doc:
http://create.msdn.com/en-us/education/documentation

Hope this helps

[Chris.Nicol]

As Kamal has mentioned you can use the Navigation URI. Basically just think of it like any normal URL with a QueryString. If you have a larger set of data, then use the IsolatedStorage to store it and then retrieve it once you've navigated to the next page.

[dheeraj_pk@hotmail.com]

Normally u can do this in multiple way
1) Passing as in URI
2) Set data to Controller class(just model class for data share b/w pages)

Create a class and name it as Controller.cs and a Property Keyword. Please make sure class should be SingleTone(Create static Property of same instance).
Just assign listbox selected item to Controller class keyword prop and access to anywhere.
Thanks