سوال: مشکل در سفارشی کردن کنترل دیتا گرید

public class DataGridControl : DataGrid

    {

        static DataGridControl()

        {

            DefaultStyleKeyProperty.OverrideMetadata(typeof(Da  taGridControl), new FrameworkPropertyMetadata(typeof(DataGridControl))  );

        }

    }

<Style TargetType="{x:Type CustomControl:DataGridControl}">



        <Setter Property="RowHeaderStyle">

            <Setter.Value>

                <Style TargetType="{x:Type DataGridRowHeader}">

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

                </Style>

            </Setter.Value>

        </Setter>



        <Setter Property="CellStyle">

            <Setter.Value>

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

                    <Style.Triggers>

                        <Trigger Property="IsSelected" Value="True">

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

                        </Trigger>

                    </Style.Triggers>

                </Style>

            </Setter.Value>

        </Setter>



        <Setter Property="RowStyle">

            <Setter.Value>

                <Style TargetType="{x:Type DataGridRowHeader}">

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

                </Style>

            </Setter.Value>

        </Setter>



        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="{x:Type CustomControl:DataGridControl}">

                    <Border Background="{TemplateBinding Background}"

                            BorderBrush="{TemplateBinding BorderBrush}"

                            BorderThickness="{TemplateBinding BorderThickness}">

                    </Border>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

<CustomControl:DataGridControl x:Name="DG" Grid.Row="1"  Grid.RowSpan="2">

                   <DataGrid.Columns>

                <DataGridTextColumn Header="Story" Binding="{Binding Story}" Width="auto"/>

                <DataGridTextColumn Header="Diaphragm" Binding="{Binding ...}" Width="auto"/>

                <DataGridTextColumn Header="Load Case" Binding="{Binding ...}" Width="auto"/>

                <DataGridTextColumn Header="Ux (CM)" Binding="{Binding .., Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Uy (CM)" Binding="{Binding ..., Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Point" Binding="{Binding Point}" Width="auto"/>

                <DataGridTextColumn Header="X (CM)" Binding="{Binding X, Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Y (CM)" Binding="{Binding Y, Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Z (CM)" Binding="{Binding Z, Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Drift(X)" Binding="{Binding ..., Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

                <DataGridTextColumn Header="Drift(Y)" Binding="{Binding ..., Converter={StaticResource decimalPrecisionConverter}}" Width="auto"/>

            </DataGrid.Columns>



        </CustomControl:DataGridControl>