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POWPF ComboBox with CheckBox - Collapsed display value
 

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    <p>I have a <code>ComboBox</code> that has an <code>ItemTemplate</code> with a <code>CheckBox</code> in it (read Dropdown CheckBoxList). I basically want to have a separate binding for the text in the combobox (both when an item is selected, and if an item isn't selected). I've <a href="https://stackoverflow.com/a/6606691/861974">tried</a> a <a href="https://stackoverflow.com/a/6506600/861974">few</a> <a href="https://stackoverflow.com/questions/4672867/can-i-use-a-different-template-for-the-selected-item-in-a-wpf-combobox-than-for/4673269#4673269">different</a> <a href="https://stackoverflow.com/a/2277488/861974">methods</a> but either can't seem to get them to work with my setup, or can't find they have some issues. I've even tried a few mixes and matches of them. Usually I find they either don't work when an item isn't specifically selected (which could be possible if the user checks a few boxes then clicks out of the <code>ComboBox</code>), or aren't updating the text properly.</p> <p>My xaml is this (the items of focus are the <code>DataTemplates</code> with the <code>ComboBoxes</code> in them):</p> <pre><code>&lt;UserControl x:Class="BestClient.ucReportViewer" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:local="clr-namespace:BestClient" mc:Ignorable="d" d:DesignHeight="315" d:DesignWidth="388" Background="#FFD7DFEC"&gt; &lt;UserControl.Resources&gt; &lt;DataTemplate x:Key="datetime"&gt; &lt;StackPanel Orientation="Horizontal" Height="35"&gt; &lt;TextBlock Text="{Binding rfName}" Width="100" VerticalAlignment="Center" /&gt; &lt;DatePicker Tag="{Binding rfParameter}" SelectedDate="{Binding rfValues, Mode=TwoWay}" Width="200" VerticalAlignment="Center" /&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;DataTemplate x:Key="office"&gt; &lt;StackPanel Orientation="Horizontal" Height="35"&gt; &lt;TextBlock Text="{Binding rfName}" Width="100" VerticalAlignment="Center" /&gt; &lt;ComboBox x:Name="officeComboBox" Tag="{Binding rfParameter}" Width="200" ItemsSource="{Binding Path=DataContext.OfficeList, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Mode=TwoWay}" VerticalAlignment="Center"&gt; &lt;ComboBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;CheckBox Tag="{Binding id}" IsChecked="{Binding isSelected}" Width="200" Content="{Binding value}" Margin="2" x:Name="CheckBox" Checked="OfficeCheckBox_Checked"/&gt; &lt;/DataTemplate&gt; &lt;/ComboBox.ItemTemplate&gt; &lt;/ComboBox&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;DataTemplate x:Key="carrier"&gt; &lt;StackPanel Orientation="Horizontal" Height="35"&gt; &lt;TextBlock Text="{Binding rfName}" Width="100" VerticalAlignment="Center" /&gt; &lt;ComboBox Tag="{Binding rfParameter}" Width="200" ItemsSource="{Binding Path=DataContext.CarrierList, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Mode=TwoWay}" VerticalAlignment="Center"&gt; &lt;ComboBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;CheckBox Tag="{Binding id}" IsChecked="{Binding isSelected}" Width="200" Content="{Binding value}" Margin="2"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/ComboBox.ItemTemplate&gt; &lt;/ComboBox&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;DataTemplate x:Key="defaultTemplate"&gt; &lt;StackPanel Orientation="Horizontal" Height="35"&gt; &lt;TextBlock Text="{Binding rfName}" Width="100" VerticalAlignment="Center" /&gt; &lt;TextBox Tag="{Binding rfParameter}" Width="200" VerticalAlignment="Center" /&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;local:ReportFilterTemplateSelector x:Key="ReportFilterTemplateSelector" /&gt; &lt;/UserControl.Resources&gt; &lt;Grid x:Name="ReportViewer"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="1*"/&gt; &lt;ColumnDefinition Width="1*"/&gt; &lt;ColumnDefinition Width="1*"/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="45"/&gt; &lt;RowDefinition Height="*"/&gt; &lt;RowDefinition Height="45"/&gt; &lt;/Grid.RowDefinitions&gt; &lt;Viewbox Grid.Row="0" Grid.Column="0"&gt; &lt;TextBlock Margin="10" TextWrapping="Wrap" Text="Select a Report:"/&gt; &lt;/Viewbox&gt; &lt;ComboBox Grid.Column="1" Margin="10" Grid.ColumnSpan="2" ItemsSource="{Binding ReportList}" DisplayMemberPath="Value" SelectedValuePath="Key" SelectedItem="{Binding SelectedReport}" VerticalContentAlignment="Center" /&gt; &lt;ListView x:Name="FilterList" Margin="10,0" Grid.Row="1" Grid.ColumnSpan="3" ItemTemplateSelector="{StaticResource ReportFilterTemplateSelector}" ItemsSource="{Binding reportFilters, Mode=TwoWay}" /&gt; &lt;Button Command="{Binding OpenReport}" Content="Open Report" Grid.Column="2" Margin="10" Grid.Row="2" VerticalAlignment="Stretch"/&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <p>Ideally, I'd like to bind the display text of the combobox with the <code>OfficeListValues</code> method in my ViewModel.</p> <pre><code>{Binding Path=DataContext.OfficeListValues, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}} </code></pre> <p>Any help would be appreciated!</p>
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    1. COcould u post whole user control . think u do all right just make err on selecting AncestorType
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    2. CONo problem, I've updated the question with the whole xaml.
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