m_dsDetail = m_fields.GetDetailCtrl
        PrepareDetailColumns()
        dgDetail.Rows.DataMember = m_dsDetail.Tables(0).TableName
        dgDetail.Rows.DataSource = m_dsDetail
        dgDetail_NodeSelectedChanging(Nothing, Nothing)
        dgDetail_NodeSelectedChange(Nothing, Nothing)

[C#]
private void DeleteCurrentRow(FlyGrid flyGrid)
{
  int currentRow = -1;
  try
  {
    flyGrid.BeginInit();
    try
    {
      NodeBase node = flyGrid.Selected;
      if (node != null)
      {
        currentRow = node.Index;
        DataRowView dr = node.Value as DataRowView;
        dr.Delete();
      }
    }
    finally
    {
      flyGrid.EndInit();  
    }
  }
  finally
  {
    //focus new node
    int newFocused = currentRow != -1 && currentRow < flyGrid.ActivePort.RowCount ? currentRow : flyGrid.ActivePort.RowCount - 1;
    flyGrid.Selected = flyGrid.ActivePort.Rows.Items[newFocused];
  }
}