c# - How are treated nonpersistent data in DevExpress XAF? -


i need create queries , these queries used create graphs in dashboard. queries lot of calculations , nonpersistent classes.

first created class , have hperformance_listview , hperformance_detailview don't have data provider populate it. system tries populate ef context, not possible.

[navigationitem] [nonpersistent] public class hperformance {     public decimal valor { get; set; }     public decimal meta { get; set; }     public decimal percentual { get; set; } }

and query class

public class metasvendas {     public metasvendas()     {         fromdate = datetime.now.addmonths(-1);         todate = datetime.now;         revenda = 0;     }      public datetime fromdate { get; set; }     public datetime todate { get; set; }     public long revenda { get; set; }      public bindinglist<hperformance> _hperformance()     {         var r = _calculometaevalor();          var rr = r.groupby(g => true).select(s => new hperformance()         {             valor = s.sum(v => v.totalusacess + v.totalusradio),             meta = s.sum(v => v.meta),             percentual = s.sum(vv => vv.totalusacess + vv.totalusradio) / s.sum(vv => vv.meta)         });          return new bindinglist<hperformance>(rr.tolist());     }

in dashboard controller code don't know how handle. example doesn't work

public partial class dashboarddealergoalexecute : viewcontroller<dashboardview> {     void parametersviewitem_controlcreated(object sender, eventargs e)     {         dashboardviewitem viewitem = (dashboardviewitem)sender;          if (viewitem.id == "hperformance")         {             listview _hperformance = (listview)viewitem.innerview;              if (parameters != null && parameters.dealer != null)             {                 bindinglist<hperformance> hp =                     new metasvendas()                     {                         fromdate = parameters.fromdate,                         todate = parameters.todate,                         revenda = parameters.dealer.id                     }._hperformance();                 _hperformance.currentobject = hp;             }         }

hperformance dashboard item , connected hperformance class (1st code). how setup hperformance_listview populated _hperformance() method?

thanks, marco castro


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