WPF Datagrid RowDetailsTemplate可视性绑定到属性

I am using a WPF Datagrid with a RowDetails panel where the RowDetailsVisibilityMode is set to "VisibleWhenSelected" and the SelectionMode="Extended" so that multiple rows can be selected and hence display RowDetails, as below:I am using a WPF Datagrid with a RowDetails pan