is there any event which is raised when mouse is click on a record or cell? I am familiar with record activating/activated event, but it does not solve my purpose. I am looking for a mouse event.

I used PreviewMouseDown event as below, but does not help when I mouse click on deactive records.

protected internal virtual void LookupGrid_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
                   DependencyObject source = e.OriginalSource as DependencyObject;
                    if (source == null) return;

                    DataRecordPresenter drp = Infragistics.Windows.Utilities.GetAncestorFromType(source,typeof(DataRecordPresenter), true, this.LookupDataGrid) as DataRecordPresenter;
                   
                    if (drp != null)
                    {
                          //--drp is not NULL when clicked any where in xmlDataGrid
                         if(drp.IsActive)
                         {
                               // - when clicked on the active record but not on other records
                        }
                     }
 }