WPF telerik:RadComboBox set SelectedItem not working

[JC]

Hi All,
I'm trying the different ways to Set the SelectedItem to WPF telerik:RadComboBox after load the data and this is still showing  the default option empty.
I'm loading the data from my ViewModel (MVVM). Any ideas?

<telerik:RadComboBox x:Name="ActionList" DisplayMemberPath="Name" Grid.Column="1" Grid.Row="0"
                                         ItemsSource="{Binding ActionList, UpdateSourceTrigger=PropertyChanged}"
                                         SelectedItem="{Binding SelectedAction, Mode=TwoWay}"
                                         IsEditable="True" IsReadOnly="True" telerik:TextSearch.TextPath="Name"
                                         MinWidth="120" />
View Model:
private ActionModel _selectedAction;
public AtionModel SelectedAction
{
get { return _selectedAction; }
set { _selectedAction = value; NotifyOfPropertyChange(() => SelectedAction); }
}
 

[Stenly]

Hello Jose Carlos,

I have created a sample project, using the provided code snippet, and this behavior was only present when the property, that is bound to the SelectedItem property, was not set to a specific value from the ActionList collection. After setting the SelectedAction property to an item from the mentioned collection, the item became visible as soon as the application was loaded. However, if this approach was already tested and it was not working correctly on your end, could you modify the attached project, so that this behavior is also present in it?

Regards,
Stenly
Progress Telerik