Could you offer a suggestion as to how I could arrange for overdue records to be automatically fixed?

Hello Phillip,

Thank you for your feedback. I am glad that you resolved your issue and I believe that other community members may benefit from this as well.

Thanks again.

Thank you.

By responding to the InitializeRecord, and calling RefreshSortPosition(), the records are arranged as desired.

    private void Grid_InitializeRecord(object sender, Infragistics.Windows.DataPresenter.Events.InitializeRecordEventArgs e)
    {
        var data = e.Record as DataRecord;
        if (data == null)
            return;

        var model = data.DataItem as RecordViewModel;
        if (model == null)
            return;

        Grid.ExecuteCommand(model.Status == RecordStatus.Overdue ? DataPresenterCommands.FixRecordTop : DataPresenterCommands.UnfixRecord, data);
        data.RefreshSortPosition();
    }