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POWpf Listbox and Togglebutton
 

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    <p>Hi iam using a listbox to show a list of items. in the listbox i ahve an togglebutton on every item. When i click on the toggle button the state of the togglebutton is pressed. But when i am scrolling down in the listbox and scolls up again. The togglebutton state is not pressed. How can i prevent this please help.</p> <p>Heres my itemtemplate</p> <pre><code>&lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel Margin="0,3,0,0"&gt; &lt;Border BorderBrush="Black" BorderThickness="1,1,1,1"&gt; &lt;Border.Background&gt; &lt;LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0" MappingMode="RelativeToBoundingBox"&gt; &lt;GradientStop Color="#FFECECEC" Offset="1"/&gt; &lt;GradientStop Color="#FFE8E8E8"/&gt; &lt;GradientStop Color="#FFBDBDBD" Offset="0.153"/&gt; &lt;GradientStop Color="#FFE8E8E8" Offset="0.904"/&gt; &lt;/LinearGradientBrush&gt; &lt;/Border.Background&gt; &lt;Border.Style&gt; &lt;Style&gt; &lt;Style.Triggers&gt; &lt;DataTrigger Binding="{Binding Path=IsSelected, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBoxItem}}}" Value="True"&gt; &lt;Setter Property="Border.Height" Value="100"/&gt; &lt;Setter Property="Border.Background"&gt; &lt;Setter.Value&gt; &lt;LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0" MappingMode="RelativeToBoundingBox"&gt; &lt;GradientStop Color="DarkGray" Offset="1"/&gt; &lt;GradientStop Color="#FFE8E8E8"/&gt; &lt;GradientStop Color="#FFBDBDBD" Offset="0.153"/&gt; &lt;GradientStop Color="DarkGray" Offset="0.904"/&gt; &lt;/LinearGradientBrush&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/DataTrigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; &lt;/Border.Style&gt; &lt;StackPanel Orientation="Horizontal" VerticalAlignment="Center"&gt; &lt;Grid&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="500"/&gt; &lt;ColumnDefinition Width="100"/&gt; &lt;ColumnDefinition Width="55"/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;!--Pick number--&gt; &lt;StackPanel Grid.Column="0" VerticalAlignment="Center" Orientation="Vertical"&gt; &lt;TextBlock Text="{Binding Path=FtgNamn}" FontWeight="Bold" FontSize="22pt" FontFamily="Calibri"/&gt; &lt;TextBlock Text="{Binding Path=LevsAttBeskr}" FontSize="18pt" FontFamily="Calibri"/&gt; &lt;/StackPanel&gt; &lt;!--Pick Quantity--&gt; &lt;StackPanel Grid.Column="1" VerticalAlignment="Center"&gt; &lt;TextBlock Text="{Binding Path=Antal}" FontSize="44pt" FontFamily="Calibri"/&gt; &lt;/StackPanel&gt; &lt;!-- Checkbox--&gt; &lt;StackPanel Grid.Column="2" VerticalAlignment="Center" HorizontalAlignment="Center"&gt; &lt;ToggleButton Name="Check" Width="40" Height="40" Click="Check_Click" Tag="{Binding Path=Plocklista}"&gt; &lt;ToggleButton.Style&gt; &lt;Style TargetType="ToggleButton"&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="{x:Type ToggleButton}"&gt; &lt;Border x:Name="InnerBorder" Background="White" BorderBrush="Black" BorderThickness="1"/&gt; &lt;ControlTemplate.Triggers&gt; &lt;Trigger Property="IsChecked" Value="True"&gt; &lt;Setter TargetName="InnerBorder" Property="Background"&gt; &lt;Setter.Value&gt; &lt;ImageBrush ImageSource="/Images/button_ok.png"/&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;Setter TargetName="InnerBorder" Property="BorderThickness" Value="0"/&gt; &lt;/Trigger&gt; &lt;/ControlTemplate.Triggers&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/ToggleButton.Style&gt; &lt;/ToggleButton&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; &lt;Border BorderBrush="Darkgray" BorderThickness="0,0,1,0"&gt; &lt;/Border&gt; &lt;TextBlock Width="100" Text="{Binding Path=Quantity}" FontSize="44pt" FontFamily="Calibri"/&gt; &lt;CheckBox Width="78"/&gt; &lt;/StackPanel&gt; &lt;/Border&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; </code></pre> <p></p> <p>Heres the binding code</p> <pre><code> delegate void FillPickHeaderDelegate(PickHeaderDoc[] pickHeaderDocs); private void FillPickList(PickHeaderDoc[] pickHeaderDoc) { if(lbAllPickAssignments.Dispatcher.CheckAccess()) { lbAllPickAssignments.ItemsSource = pickHeaderDoc; lbAllPickAssignments.UnselectAll(); } else { lbAllPickAssignments.Dispatcher.Invoke(new FillPickHeaderDelegate(FillPickList), new object[] { pickHeaderDoc }); } } </code></pre> <p>And heres the Click event</p> <pre><code> private void Check_Click(object sender, RoutedEventArgs e) { ToggleButton btn = (ToggleButton) sender; if(btn.IsChecked.Value == true) { m_checkedList.Add(Convert.ToInt32(btn.Tag)); } else { m_checkedList.Remove(Convert.ToInt32(btn.Tag)); } txtblockPickCount.Text = m_checkedList.Count.ToString(); } </code></pre>
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    1. COmight want to edit the layout of your code (in VS press shift+tab when selecting all of the above text to indent it less)
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      1. USMichal Ciechan
    2. CODo you face the same problem with all those controltemplates and styles removed?
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      1. USAmsakanna
    3. COIt happens only when iam selecting an item then move down to the bottom of the list then scolls up again.
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      1. USTan
 

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