The problem I have is when I load a datagrid I want to set selected records based on a criteria, however I'm having trouble trying to do so using MVVM. I've attached a sample project were I was trying to preselect records based on sex when the datagrid loads. 

Hello,

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. Also as I said before your are not able to use a Converter and Style for the DataRecordPresenter in order to achive this functionality, becasue the IsSelected Property is set internally via code.

Thanks again.

I figured out a way to do it however, I would like to know is there a way I can use a converter to do the following code:

foreach (Record r in xamDataGrid1.Records)
            {
                DataRecord dr = r as DataRecord;
                if (dr.Cells["Sex"].Value.ToString() == "F")
                {
                    r.IsSelected = true;
                }
            }

I've attached an update sample project, to show my scenerio.