// Formats the OrderDate field's values using a long date pattern.
fieldOrderDate.ValueFormat.FormatType = DevExpress.Utils.FormatType.DateTime;
fieldOrderDate.ValueFormat.FormatString = "D";

// Formats the ExtendedPrice field's values as integer currency values.
fieldExtendedPrice.CellFormat.FormatType = DevExpress.Utils.FormatType.Numeric;
fieldExtendedPrice.CellFormat.FormatString = "c0";