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    <p>If you want only to pass a variable you can use NavigationService to pass it - for example do it like this:<BR> On the first page, when Navigating (I assume your Q is the variable you want to pass):</p> <pre><code>string myQ = Q.ToString(); NavigationService.Navigate(new Uri("/secondPage.xaml?Q=" + myQ, UriKind.Relative)); </code></pre> <p>On the second page, in OnNavigatingTo() read that variable:</p> <pre><code>string myQ; NavigationContext.QueryString.TryGetValue("myQ", out myQ); // it's string so you probably need to for example Q = int.Parse(myQ); </code></pre> <p>If you want to send more complex objects you can do it like <a href="http://www.kunal-chowdhury.com/2013/10/passing-object-to-wp-navigation-service.html" rel="nofollow noreferrer">here</a> - you can write an extension:</p> <pre><code>public static class Extensions { private static object Data; public static void Navigate(this NavigationService navigationService, Uri source, object data) { Data = data; navigationService.Navigate(source); } public static object GetNavigationData(this NavigationService service) { return Data; } } </code></pre> <p>Usage:</p> <pre><code>NavigationService.Navigate(new Uri("/Page2.xaml", UriKind.RelativeOrAbsolute), ErrorCorrectionLevel.H); </code></pre> <p>Then after Navigating you use:</p> <pre><code>object myQ = NavigationService.GetNavigationData(); ErrorCorrection fromPreviousPage = (ZXing.QrCode.Internal.ErrorCorrectionLevel)myQ; </code></pre> <p>You can also read some more <a href="https://stackoverflow.com/questions/20004086/is-there-a-typesafe-way-of-navigating-between-screens-in-windows-phone">here</a>.</p>
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    1. COErrorCorrectionLevel.H is a class ZXing.QrCode.Internal.ErrorCorrectionLevel so it's not my variable. After ErrorCorrectionLevel. I have a choice of four option (Q, M, H, L).
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    2. CO@user2962457 You can play with strings which you pass to the next page, and then depending on which string you can choose your CorrectionLevel. Or you can pas this ErrorCorrection as complex object - I've edited post above. I think you should figure out how to do it.
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    3. COCan you look to my first post ? I have edited and had error;
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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