WPF DataGrid DataGridTextColumn

Style设置时，无法绑定到数据，需要这样写

<DataGridTextColumn Header="呵呵"  Binding="{Binding ID}" >
                    <DataGridTextColumn.ElementStyle>
                        <Style TargetType="TextBlock">
                            <Setter Property="Visibility" Value="{Binding ElementName=WW,Path=DataContext.Visi}" />
                        </Style>
                    </DataGridTextColumn.ElementStyle>
                    <DataGridTextColumn.HeaderStyle>
                        <Style TargetType="DataGridColumnHeader">
                            <Setter Property="Visibility" Value="{Binding ElementName=WW,Path=DataContext.Visi}" />
                        </Style>
                    </DataGridTextColumn.HeaderStyle>
                    <DataGridTextColumn.CellStyle>
                        <Style TargetType="DataGridCell">
                            <Setter Property="Visibility" Value="{Binding ElementName=WW,Path=DataContext.Visi}" />
                        </Style>
                    </DataGridTextColumn.CellStyle>
                </DataGridTextColumn>

 另外有其他实现的例子：https://thomaslevesque.com/2011/03/21/wpf-how-to-bind-to-data-when-the-datacontext-is-not-inherited/