or
<telerik:RadDocumentPane x:Class="RadControlsWpfApp1.RadControlsScenario1"<br> xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"<br> xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"<br><span class="Apple-tab-span" style="white-space:pre"> </span>xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"<br> xmlns:d="http://schemas.microsoft.com/expression/blend/2008"<br> xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"<br> Header="RadControlsScenario1" mc:Ignorable="d" d:DesignHeight="288" d:DesignWidth="290"><br> <Grid><br> <TextBlock Text="Blah blah blah"/><br> </Grid><br></telerik:RadDocumentPane>How does one grab the binding in order to force an update on a RadComboBox control?
MyRadComboBox.ItemsSource = MyObservableCollectionOfACustomClass;
MyRadComboBox.DisplayMemberPath = "Description";
Then, I try to grab the binding in a different control's event.
var binding = BindingOperations.GetBindingExpression(MyRadComboBox, RadComboBox.ItemsSourceProperty);
if (binding == null) return; // This is always null
binding.UpdateTarget();


<telerik:RadListBox MinWidth="100" MaxHeight="250" x:Name="radListBox" Grid.ColumnSpan="2" Visibility="Collapsed" HorizontalAlignment="Left" VerticalAlignment="Top" CanAutocompleteSelectItems="True" IsTextSearchEnabled="True" TextSearchMode="Contains" TextPath="Name" ItemTemplate="{StaticResource AutoCompleteListBoxTemplate}" ItemsSource="{Binding autoCompleteListItems}" MouseDoubleClick="radListBox_MouseDoubleClick" MouseUp="radListBox_MouseUp"> <telerik:RadListBox.Effect> <DropShadowEffect ShadowDepth="10" Color="Gray" Opacity=".4" Direction="320" RenderingBias="Performance" /> </telerik:RadListBox.Effect></telerik:RadListBox><DataTemplate x:Key="AutoCompleteListBoxTemplate"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <Image Style="{StaticResource AutoCompleteListBoxIcon}" Width="10" Height="10" Margin="0,0,10,0" /> <TextBlock Text="{Binding Name}" Grid.Column="1" HorizontalAlignment="Stretch" /> <TextBlock Text="" Grid.Column="2" HorizontalAlignment="Right" Margin="5,0,5,0" /> </Grid></DataTemplate>private void radRichTextBox_Loaded(object sender, RoutedEventArgs e){ //Set Autocomplete ListBox itemssource radListBox.ItemsSource = autoCompleteListItems;}