GridView条件格式 FormatConditions

在实战中，除了用GridView.RowStyle事件来实现如改变行的背景色外，还可以用GridView.FormatConditions来实现，如下面的代码所示，

using DevExpress.XtraGrid;

StyleFormatCondition condition1 = new DevExpress.XtraGrid.StyleFormatCondition();
condition1.Appearance.BackColor = Color.SeaShell;
condition1.Appearance.Options.UseBackColor = true;
condition1.Condition = FormatConditionEnum.Expression;
condition1.Expression = "[Region] != ?"; //region字段不为空
gridView1.FormatConditions.Add(condition1);