For a string variable, it's easiest to use a query string parameter:
NavigationService.Navigate(new Uri("/newpage.xaml?key=value", Urikind.Relative));
Pick it up on the target page using NavigationContext.QueryString
:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (NavigationContext.QueryString.ContainsKey("key"))
{
string val = NavigationContext.QueryString["key"];
// etc ...
}
}
Note: if your string contains only alphanumeric characters, then the above will work without modification. But, if your string might have URL-reserved characters (eg, &
, ?
), then you'll have to URL-encode them. Use the helper methods Uri.EscapeDataString
and Uri.UnescapeDataString
for this.
To escape:
string encodedValue = Uri.EscapeDataString("R&R");
NavigationService.Navigate(new Uri("/newpage.xaml?key=" + encodedValue, Urikind.Relative));
To unescape:
string encodedValue = NavigationContext.QueryString["key"];
string val = Uri.UnescapeDataString(encodedValue);
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