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POCollectionViewSource.Filter doesn't work
 

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    <p>I have a window in my application with following resources:</p> <pre><code> &lt;Window.Resources&gt; &lt;ResourceDictionary&gt; &lt;Data:IssueRecords x:Key="DataSource"/&gt; &lt;CollectionViewSource x:Key="DataCollection" Source="{StaticResource DataSource}" Filter="CollectionViewSource_Filter"&gt; &lt;/CollectionViewSource&gt; &lt;/ResourceDictionary&gt; &lt;/Window.Resources&gt; </code></pre> <p>There is a standard event handler - a method, called CollectionViewSource_Filter and DataGrid, to apply filter to. After my window loads, everything works perfectly, including filters.</p> <p>For applying filters, I call a ReloadGrid method...</p> <pre><code> private void ReloadGrid(object sender, RoutedEventArgs e) { CollectionViewSource.GetDefaultView(GridData.ItemsSource).Refresh(); } </code></pre> <p>But, when user does any action, which makes changes to my database (delete, modify or create new), I need to reload those data sources, so I call...</p> <pre><code> private void ReloadDataSources() { var dataSource = this.FindResource("DataSource") as IStockRecords; dataSource.ReloadData(); var dataCollection = this.FindResource("DataCollection") as CollectionViewSource; dataCollection = new CollectionViewSource() { Source = dataSource }; dataCollection.Filter += new FilterEventHandler(CollectionViewSource_Filter); Binding binding = new Binding() { Source = dataCollection }; BindingOperations.SetBinding(GridData, DataGrid.ItemsSourceProperty, binding); } </code></pre> <p>I think, I do everything, what is needed to read actual data from database and reload the datasources in my window. But when I use any filter, after I call ReloadDataSources(), the filter event is not being used anymore. I debugged a source code and Refresh method doesn't invoke CollectionViewSource_Filter, even when I set FilterEventHandler...</p> <p>Am i missing anything? Thanks, JiKra</p>
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    1. USJiKra
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    1. COHave you tried updating the source and database rather than refreshing the source. I know it seems like a hassle but that is what I do do for scalability.
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      1. USpaparazzo
    2. COI update database via insert, update, or delete. Then I call dataSource.ReloadData(), which calls sql select to retrieve actual data.
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      1. USJiKra
    3. COI understand that is what you do. I am suggesting you update both rather than just the database and reload.
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      1. USpaparazzo
 

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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.

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