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POCannot find control in a ListView
 

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  1. POCannot find control in a ListView
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    <p>I have this ListView: </p> <pre><code> &lt;ListView Grid.Row="1" x:Name="ListLinePositions" ItemsSource="{Binding Source={StaticResource CollectionViewSource}}" SelectionChanged="ListLinePositions_SelectionChanged"&gt; &lt;ListView.GroupStyle&gt; &lt;GroupStyle&gt; &lt;GroupStyle.ContainerStyle&gt; &lt;Style TargetType="{x:Type GroupItem}"&gt; &lt;Setter Property="Margin" Value="0,0,0,5"/&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="{x:Type GroupItem}" x:Name="posTemplate"&gt; &lt;Grid Name="GridGroupItem"&gt; &lt;Border Name="BorderGroupItem" CornerRadius="3" BorderThickness="1" Padding="1,1,1,1" Focusable="True" FocusVisualStyle="{x:Null}" Background="{StaticResource {x:Static SystemColors.GradientInactiveCaptionBrushKey}}" BorderBrush="{StaticResource {x:Static SystemColors.InactiveBorderBrushKey}}" PreviewMouseDown="BorderGroupItem_PreviewMouseDown"&gt; &lt;Grid&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;/Grid.RowDefinitions&gt; &lt;Grid Name="GridHeader" Grid.Row="0" Margin="0,2,0,2"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition Width="100"/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;StackPanel Orientation="Horizontal" Grid.Column="0" Height="24"&gt; &lt;CheckBox x:Name="checkedHeader" VerticalAlignment="Center"/&gt; &lt;TextBlock Text="{Binding Name.Id, Mode=OneWay}" FontWeight="Bold" Margin="3,0,3,0" VerticalAlignment="Center" /&gt; &lt;Image Height="24" Width="24" Source ="{Binding Name.Partition.Sport.TypeEnum, Converter={StaticResource SportTypeToImageConverter}, Mode=OneWay}" VerticalAlignment="Center" /&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; &lt;/Grid&gt; &lt;/Border&gt; &lt;/Grid&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/GroupStyle.ContainerStyle&gt; &lt;/GroupStyle&gt; &lt;/ListView.GroupStyle&gt; &lt;ListView.View&gt; &lt;GridView x:Name="positionGrid"&gt; &lt;GridViewColumn Width="Auto" Header="check"&gt; &lt;GridViewColumn.CellTemplate&gt; &lt;DataTemplate&gt; &lt;CheckBox x:Name="checkedPosition" /&gt; &lt;/DataTemplate&gt; &lt;/GridViewColumn.CellTemplate&gt; &lt;/GridViewColumn&gt; &lt;/GridView&gt; &lt;/ListView.View&gt; &lt;/ListView&gt; </code></pre> <p>I need to access <code>&lt;CheckBox x:Name="checkedPosition" /&gt;</code> </p> <p>My ListView loads in new window. So when I try to access the the CheckBox like this</p> <pre><code>foreach (LinePosition item in this.ListLinePositions.Items) { CheckBox cb = FindByName("checkedPosition", (ListViewItem)this.ListLinePositions.ItemContainerGenerator.ContainerFromItem(item)) as CheckBox; } </code></pre> <p>I can't find anything although <code>ListLinePositions.Items.Count &gt; 0</code>. But after ShowDialog for my window I get checked positions and this code works! I don't know what to do in the first case. Please, help to find solution.</p> <p>I had something like that</p> <pre><code>public LineHeaderViewDocument() { InitializeComponent(); Title = GetTitle(_lineFilter);//изм ListLinePositions.ItemContainerGenerator.StatusChanged += ItemContainerGenerator_StatusChanged; } void ItemContainerGenerator_StatusChanged(object sender, EventArgs e) { if (ListLinePositions.ItemContainerGenerator.Status == System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated) { //... foreach (LinePosition item in this.ListLinePositions.Items) { CheckBox cb = FindByName("checkedPosition", (ListViewItem)this.ListLinePositions.ItemContainerGenerator.ContainerFromItem(item)) as CheckBox; } } } </code></pre> <p>But this doesn't work too. </p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USalgreat
    1. USalgreat
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COProblem Solved ... this shouldn't be the place for root cause analysis ... is there any issue with what's working
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      1. POCannot find control in a ListView
      1. USArpit
 

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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.

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