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POWPF ListView with DataTemplateSelector: PropertyChanged always sets focus to ListView
 

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  1. POWPF ListView with DataTemplateSelector: PropertyChanged always sets focus to ListView
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    <p>i'm really frustrated with this problem, but maybe it is really trivial and i just can't see where the problem is. The situation is the following: I have a ListView that is bound to an ItemsSource. Depending on the type, the DataTemplateSelector decides which template to use.</p> <p>If i tab through the controls (textboxes) everything works fine. as soon as i enter a value in a textbox and tab out of the textbox propertychanged for this property gets called. my controls get updated. That all is working fine, but here comes the problem: While the controls get updated, the focus does not move to the next tabstop but jumps to the ListView. How can i disable that? How can i get it to move the focus like no data has been entered and property changed has not been raised?</p> <p>Thanks in advance</p> <p>Update: Part of the XAML, if you need further information please let me know</p> <p><strong>Update2:</strong> After setting Focusable=false on the ListView the focus now jumps out of the whole ListView control if PropertyChanged is raised</p> <p>ListView declaration:</p> <pre><code>&lt;ListView x:Name="ListViewFields" KeyboardNavigation.TabNavigation="Cycle" KeyboardNavigation.IsTabStop="False" ItemsSource="{Binding Path=Fields}" ItemTemplateSelector="{StaticResource ControlDataTemplateSelector}" ItemContainerStyle="{StaticResource ListViewItemStyle}" Template="{StaticResource listViewTemplate}" Grid.IsSharedSizeScope="true"&gt; &lt;/ListView&gt; </code></pre> <p>Example of an Template:</p> <pre><code>&lt;DataTemplate x:Key="singleLineOfTextTemplate"&gt; &lt;Grid Style="{StaticResource GridStyle}"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition SharedSizeGroup="MyFirstColumn" /&gt; &lt;ColumnDefinition SharedSizeGroup="MySecondColumn" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Label Grid.Column="0" IsTabStop="False" Content="{Binding Path=Name}" /&gt; &lt;TextBox Grid.Column="1" x:Name="inputControl" IsTabStop="True" Text="{Binding Path=Value, Mode=TwoWay}" MinWidth="150"/&gt; &lt;/Grid&gt; &lt;/DataTemplate&gt; </code></pre> <p><strong>Update 3:</strong> In the focus lost event of the ListViewItems I can see that focus is sometimes set to the DisconnectedItem (see <a href="https://stackoverflow.com/questions/14282894/wpf-listbox-virtualization-creates-disconnecteditems">DisconnectedItem on SO</a>, may be this is a reason why I have this behavior.</p> <p>I fixed my issue now by restoring the focus manually. In the ListViewItem GotFocus and LostFocus Events I store the selected ListViewItem and set a flag if restoring focus is neccessary, which then can be done in the ItemContainerGenerator.StatusChanged event.</p> <p>This solution seems very ugly to me - any other suggestions or ways to fix this would still be nice.</p>
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    1. COpost your XAML and code. Im too lazy to read your entire explanation.
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      1. USFederico Berasategui
    2. COtry setting CanFocus=false in your ListView
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      1. USd.moncada
    3. CObecause ListView does not seem to have a CanFocus property I tried it with Focusable=false. Result: ListView does not get the focus anymore but instead focus is set completely out of the ListView and its elements and jumps to next control outside my ListView
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