DataGrid模板中控件的宽度怎么与列的宽度绑定

DataGrid模板中控件的宽度怎样与列的宽度绑定

<DataGrid Grid.Row="1"  x:Name="dg_TimeTable" ColumnHeaderStyle="{DynamicResource DataGridColumnHeaderStyle}"

				 		Style="{DynamicResource DataGridStyle}" RowStyle="{DynamicResource DataGridRowStyle}" CellStyle="{DynamicResource DataGridCellStyle}" AlternationCount="2" Margin="5" IsReadOnly="True">

				 		<DataGrid.Columns>

                            <DataGridTemplateColumn Header="名     称"  Width="*">

                                <DataGridTemplateColumn.CellTemplate>

                                    <DataTemplate >

                                        <TextBlock Text="{Binding Name}" Tag="{Binding IsEdit}" TextAlignment="Center" Width="{Binding}" MouseLeftButtonDown="TextBlock_MouseLeftButtonDown"></TextBlock>

                                    </DataTemplate>

                                </DataGridTemplateColumn.CellTemplate>

                            </DataGridTemplateColumn>

                            <DataGridTextColumn Header="GlobalID" Binding="{Binding GlobalID}" Visibility="Hidden"></DataGridTextColumn>

                        </DataGrid.Columns>                                

				 	</DataGrid>

如上前台xaml代码，我想让TextBlock的Width与它所在列的实际显示宽度ActualWidth绑定，如何写绑定代码，只在前台写！
------解决方案--------------------

                <DataGridTemplateColumn Header="名     称"  Width="*" x:Name="dataGridTemplateColumn1">

                    <DataGridTemplateColumn.CellTemplate>

                        <DataTemplate >

                            <TextBlock Text="{Binding Name}" Tag="{Binding IsEdit}" TextAlignment="Center" Width="{Binding ActualWidth, ElementName=dataGridTemplateColumn1, Mode=OneWay}" MouseLeftButtonDown="TextBlock_MouseLeftButtonDown"></TextBlock>

                        </DataTemplate>

                    </DataGridTemplateColumn.CellTemplate>

                </DataGridTemplateColumn>

------解决方案--------------------
支持1楼，单纯的设置TextBlock的HorizontalAlignment是不行的