Click on a datagrid column header impossible

I created a datagrid with dataGridTemplateColumn and I can't use the click on header to sort anymore. Here is a sample of my code :

       <DataGrid.Columns>
            <DataGridTemplateColumn Header="action id" Width="Auto">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>开发者_JAVA百科
                        <Label Content="{Binding id}" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>

Do you have an idea of what is going wrong? Is this because of the use of a template that the default sort is desactivated?

Thanks,

J.

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you should set the SortMemberPath property

<DataGridTemplateColumn SortMemberPath="id" Header="action id" Width="Auto">

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Try setting the property CanUserSortColumn = true for your DataGridTemplateColumn.