I'm trying to disable a column based on another column. Seems easy and works fine when the record is not a newly added record. I have 2 fields. For simplicity lets make the first a boolean - IsEnabled and the second a string - Result. Result should only be enabled when IsEnabled is True. Here's my Result column:

<igDP:Field Name="Result">

      <igDP:Field.Settings>

            <igDP:FieldSettings >

                  <igDP:FieldSettings.EditorStyle>

                        <Style TargetType="{x:Type igEditors:XamTextEditor}">

                              <Setter Property="IsEnabled" Value="{Binding Path=DataItem.IsEnabled}"/>

                        </Style>

                  </igDP:FieldSettings.EditorStyle>

            </igDP:FieldSettings>

      </igDP:Field.Settings>

</igDP:Field>

 The question is why doesn't this work in the Add New row (or any records added from the AddNew row). Is there something else I can access other than DataItem? We've seen the problem before for CellValuePresenters - to resolve that we added the following code to the RecordAdded event, but I'm not sure how to grab the Editor and I'd rather get to the root of the problem instead of working around it:

 void XamDataGrid1_RecordAdded(object sender, Infragistics.Windows.DataPresenter.Events.RecordAddedEventArgs e) {
    Cell periodCell;
    Style cellStyle;
    CellValuePresenter cellPresenter;
    periodCell = e.Record.Cells["Result"];
    if (periodCell != null) {
      if (periodCell.Field.HasSettings) {
        cellStyle = periodCell.Field.Settings.CellValuePresenterStyle;
        if (cellStyle != null) {
          cellPresenter = CellValuePresenter.FromRecordAndField(periodCell.Record, periodCell.Field);
          cellPresenter.DataContext = null;
          cellPresenter.DataContext = e.Record;
        }
      }
    }
}