DataGrid模板中控件的宽度怎的与列的宽度绑定

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！
[解决办法]

                <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>

[解决办法]
支持1楼，单纯的设置TextBlock的HorizontalAlignment是不行的

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