StackOverflow2013

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18045992
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2013-08-04T18:11:05.697
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2013-08-16T18:24:43.827
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2013-08-16T18:24:43.827
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text
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<p>I think that link to <code>UINavigationController</code> (UI component) in <code>UITableViewSource</code> is a bit weird. I recommend to use event-based approach:</p> <ul> <li>Declare event in <code>UITableViewSource</code> and call it on row selection:</li> </ul> <pre class="lang-cs prettyprint-override"><code>public event Action<int> OnRowSelect; ... public override void RowSelected (UITableView tableView, NSIndexPath indexPath) { tableView.DeselectRow (indexPath, true); // normal iOS behaviour is to remove the blue highlight if (OnRowSelect != null) { OnRowSelect(indexPath.Row); } } </code></pre> <ul> <li>Then, handle event on <code>UIViewController</code> - push new <code>UIViewController</code>:</li> </ul> <pre class="lang-cs prettyprint-override"><code>var source = data.ToArray(); source.OnRowSelect += HandleOnRowSelect; HotelSearchTable.Source = new HotelTableSource(); HotelSearchTable.ReloadData(); ... void HandleOnRowSelect(int index) { var data = items[index]; // Pass data to new view controller and push it } </code></pre> <p>Tip to avoid memory leaks: don't forget to unsubscribe from OnRowSelect when you <code>Pop</code> this <code>UIViewController</code> or making new <code>UITableViewSource</code> instance. I.e:</p> <ul> <li>Declare <code>source</code> in as class member;</li> <li>Unsubscribe from it's event in, for example, <code>ViewWillDisappear</code>:</li> </ul> <pre class="lang-cs prettyprint-override"><code>source.OnRowSelect -= HandleOnRowSelect; </code></pre>
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1. This table or related slice is empty.
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1. POMONOTOUCH open a viewcontroller on tableview cell is clicked
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1. PTAnswer
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1. USMaxim Korobov
UserOwnerUserId
1. USMaxim Korobov
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Guidance

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.