Hi

I'm using the shared version. With your suggested code I get a null value.

My code:

<UserControl x:Class="PrestImmo.Infrastructure.CustomControls.LabelComboEditor"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:ig="http://schemas.infragistics.com/xaml"
             x:Name="LCE">

    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>

        <TextBlock x:Name="tbl" Text="{Binding ElementName=LCE, Path=LabelText}" Height="{Binding ElementName=LCE, Path=LabelHeight}" Width="{Binding ElementName=LCE, Path=LabelWidth}" VerticalAlignment="Center"/>
        <ig:XamComboEditor x:Name="xce" Grid.Column="1" Height="{Binding ElementName=LCE, Path=ComboBoxHeight}" Width="{Binding ElementName=LCE, Path=ComboBoxWidth}"
                           HorizontalContentAlignment="{Binding ElementName=LCE, Path=HorizontalContentAlignment}" VerticalAlignment="Center" ItemTemplate="{Binding ElementName=LCE, Path=ItemTemplate}"
                           ItemsSource="{Binding ElementName=LCE, Path=ItemsSource}" DisplayMemberPath="{Binding ElementName=LCE, Path=DisplayMemberPath}" SelectedValuePath="{Binding ElementName=LCE, Path=SelectedValuePath}"
         SelectedValue="{Binding ElementName=LCE, Path=SelectedValue, Mode=TwoWay}"/>
    </Grid>
</UserControl>

Constructor:

public LabelComboEditor()
{
 InitializeComponent();
 var s = (SpecializedTextBox)Infragistics.Windows.Utilities.GetDescendantFromType(xce, typeof(SpecializedTextBox), false);
}

Hello,

Do you have any other questions on this matter?

Sincerely,
Valerie
Developer Support Supervisor - XAML
Infragistics, Inc
www.infragistics.com/support

Hi mheusser,

You should use that code inside the Loaded event.  If you do it right after InitializeComponent, there is no guarantee that all the components inside the XamComboEditor will have been created.  The reason you are getting null is probably because the TextBox hasn't been created yet.  Handle the Loaded event on your UserControl and try it there.