Passing Collection object from one page to another

Question

I have a two xaml page. I am trying to passing a list array of string from one page to another during navigation. I can easily pass the string object but not able to pass the collection object. Can anyone please help me. I have write the code as below.

First xaml

List<string> array = //contains the array of strings
NavigationService.Navigate(new Uri("/ListViewController.xaml?parameter="+array, UriKind.Relative));

Second xaml i.e ListViewController.xaml

protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
string msg;
if (NavigationContext.QueryString.TryGetValue("parameter",out msg))
{
foreach (char str in msg)
Debug.WriteLine("Data "+ str);
}
}

You can use string join method to separate the array. String.Join(",", array.ToArray());. Note : Query string limitation, refer : http://stackoverflow.com/questions/14718933/how-to-send-long-query-string-in-windows-phone-with-httpwebrequest In destination page, split query string parameter using separator. - var data= msg.Split(','); — Deepu Madhusoodanan, Jul 15 '13 at 04:55
This can be helpful: http://stackoverflow.com/questions/4953491/passing-data-from-page-to-page — anderZubi, Jul 15 '13 at 07:33

score 0 · Answer 1 · answered Nov 25 '13 at 06:35

0

You can try this

Pass non-string parameters between pages in Windows Phone 8 app

answered Nov 25 '13 at 06:35

Alen Lee

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score 0 · Answer 2 · answered Mar 15 '17 at 15:25

This work for ObservableCollection so I hope will work for List. You can pass collection by parametr of Navigate method:

    ObservableCollection<string> gifts = new ObservableCollection<string>();

    private void GoToMoreButton_Click(object sender, RoutedEventArgs e)
    {
         this.Frame.Navigate(typeof(MoreOptionPage), gifts);
    }

And get it in destination page:

protected override void OnNavigatedTo(NavigationEventArgs e)
{
     gifts2 = e.Parameter as ObservableCollection<string>;
}

Passing Collection object from one page to another

2 Answers2