Hello Alex,

Thanks For reply.

Sorry I didn’t get your point as I am binding ComboBox with a ObservableCollection.

I tell you in detail.................................

I am using a xamDatagrid and that grid is having one of the Cell as a xamComboEditor which is bound to DataContext.JobFunctionList.

JobFunctionList is coming from lookup Values which is combionation of two fields

1.  RefGeneralValueId

2.  RefGeneralValueDescLong

So ValuePath="RefGeneralValueId" and DisplayMemberPath="RefGeneralValueDescLong"

1.  I have bound “Value” to PersonFunctionId(one of the field from another table). This may be one of  the Id in RefGeneralValueId. As I want to show “RefGeneralValueDescLong” with respect to the  PersonFunctionId at editing time so I have bound “Value” to PersonFunctionId.

Code for Datagrid :

<GroupBox Header="Job Function" Grid.Row="8" Grid.ColumnSpan="5" Margin="10">

                        <Controls1:LipperGrid   Theme="Office2k7Silver" x:Name="grdContactAssociation" ScrollViewer.VerticalScrollBarVisibility="Auto"   DataSource="{Binding ContactJobFunctionList}" ContextMenu="{StaticResource ContactAssociationMenu}"  MinHeight="100" Margin="5" SelectedItemsChanged="grdContactAssociation_SelectedItemsChanged">

                            <DataPresenter:LipperGrid.FieldLayoutSettings>

                                <DataPresenter:FieldLayoutSettings AutoGenerateFields="False"  />

                            </DataPresenter:XamDataGrid.FieldLayoutSettings>

                            <DataPresenter:XamDataGrid.FieldSettings>

                                <DataPresenter:FieldSettings LabelClickAction="Nothing" ></DataPresenter:FieldSettings>

                            </DataPresenter:XamDataGrid.FieldSettings>

                            <DataPresenter:XamDataGrid.FieldLayouts>

                                <DataPresenter:FieldLayout>

                                    <DataPresenter:FieldLayout.Fields>

                                        <DataPresenter:Field Name="PersonFunctionId" Label="Select Job Function" >

                                            <DataPresenter:Field.Settings>

                                                <DataPresenter:FieldSettings AllowEdit="True"  AllowGroupBy="True" CellWidth="150" CellValuePresenterStyle="{StaticResource ComboJobFunction}"/>

                                            </DataPresenter:Field.Settings>

                                        </DataPresenter:Field>

                                        <DataPresenter:Field Name="IsMain" Label="Primary Job Function" >

                                            <DataPresenter:Field.Settings>

                                                <DataPresenter:FieldSettings AllowEdit="False"  AllowGroupBy="True" CellWidth="150" CellValuePresenterStyle="{StaticResource CheckBoxPrimaryJobFunction}"/>

                                            </DataPresenter:Field.Settings>

                                        </DataPresenter:Field>

                                    </DataPresenter:FieldLayout.Fields>

                                </DataPresenter:FieldLayout>

                            </DataPresenter:XamDataGrid.FieldLayouts>                           

                        </DataPresenter:XamDataGrid>

                    </GroupBox>

2.  I tried using DataTrigger like this       

 <Style x:Key="ComboJobFunction" TargetType="{x:Type DataPresenter:CellValuePresenter}">

            <Setter Property="Template">

                <Setter.Value>

                    <ControlTemplate TargetType="{x:Type DataPresenter:CellValuePresenter}" >

                        <igEditors:XamComboEditor Margin="0" x:Name="cboJobFunction" Value="{Binding Path=DataItem.PersonFunctionId}"

                                                  ValuePath="RefGeneralValueId" DisplayMemberPath="RefGeneralValueDescLong"

                                                  ItemsSource="{Binding Path=DataContext.JobFunctionList, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}"

                                                  SelectedItemChanged="cboJobFunction_SelectedItemChanged"  >

                        </igEditors:XamComboEditor >

                        <ControlTemplate.Triggers>

                            <DataTrigger   Binding="{Binding Path=ComboBoxDataItem, RelativeSource={RelativeSource Self}, Value="-1" >

                                <Setter Property="Background" Value="Red"></Setter>

                            </DataTrigger>

                        </ControlTemplate.Triggers>

                    </ControlTemplate> 

                </Setter.Value>              

            </Setter>

        </Style>

 Might be I am missing something Please help me.

Hello,

You can create a style for the ComboBoxDataItem and bind to its value property with a DataTrigger and set the FontSize,FontWeight or Margin to indent.

Hope this helps.