Devexpress GridView 数据格式化显示

gridView1.CustomColumnDisplayText += gridView1_CustomColumnDisplayText;
 void gridView1_CustomColumnDisplayText(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDisplayTextEventArgs e)
        {
            if (e.Column.FieldName == "State")
            {
                switch (e.DisplayText)
                {
                    case "0":
                        e.DisplayText = "有效";
                        break;
                    case "1":
                        e.DisplayText = "无效";
       
                        break;
                }
            }
        }