<infra:XamDataGrid  

Name="ssnNameDatagrid" <infra:FieldLayout.Fields>                        

<infra:Field                            

Name="SocialSecurityNumber"                            

Width="Auto"                            

Label="{Localize socialSecurityNumber}">                            

<infra:Field.Settings>                                

<infra:FieldSettings                                    

LabelClickAction="Nothing"                                    

EditorType="{x:Type infraEditor:XamComboEditor}">                                    

 <infra:FieldSettings.EditorStyle>                                        

<Style                                            

TargetType="{x:Type infraEditor:XamComboEditor}">                                            

<Setter                                                

Property="ItemsProvider"                                                

Value="{Binding Path=DataContext.ListOfSSNItemsProvider,RelativeSource={RelativeSource Mode=FindAncestor,AncestorLevel=1, AncestorType={x:Type UserControl}} }" />                                            

<Setter                                                

 Property="IsEditable"                                                

 Value="True" />

  <EventSetter                                                

Event="infraEditor:ValueEditor.ValueChanged"                                                

Handler="OnValueChanged" />                                            

<Setter                                                

Property="DropDownButtonDisplayMode"                                                

Value="Always" />