Checkbox in WPF

STYLE  

<Style x:Key="ChkCellStyle1" TargetType="{x:Type dg:DataGridCell}">

                <Style.Triggers>

                    <Trigger Property="dg:DataGridCell.IsSelected" Value="True">

                        <Setter Property="BorderThickness" Value="0" />                       

                    Trigger>

                Style.Triggers>

                <Setter Property="Template">

                    <Setter.Value>

                        <ControlTemplate TargetType="{x:Type dg:DataGridCell}">

                            <Grid Background="{TemplateBinding Background}">

                                <ContentPresenter HorizontalAlignment="Center"

                                                  VerticalAlignment="Center"

                                                  FocusVisualStyle="{x:Null}"

                                                  >

                                ContentPresenter>

                            Grid>

                        ControlTemplate>

                    Setter.Value>

                Setter>             

                <EventSetter Event="PreviewMouseLeftButtonDown" Handler="DataGridCell_PreviewMouseLeftButtonDown" />               

            Style>

CHECKBOX EVENT

  <dg:DataGridCheckBoxColumn 

                                                x:Name="CellCompleted"

                                                CellStyle="{StaticResource ChkCellStyle1}"                    

                                                Width="150"

                                                Binding="{Binding CB_Complete, Mode=TwoWay}"

                                               IsReadOnly="True"

                                                HeaderStyle="{StaticResource ColumnHeaderStyle}">

                                <dg:DataGridCheckBoxColumn.Header>

                                    <TextBlock x:Name="Completed"/>

                                dg:DataGridCheckBoxColumn.Header>

                            dg:DataGridCheckBoxColumn>

Hope this helps.....

With Regards

P.Krishna Prasad