c# - ASP.NET MVC multiple parameters and models -

description: have model workorder contains workorderform model (start_date, end_date, organization), list of models (the actual orders) , page parameters (page, page_size, page_count). main idea display work orders, , because there large amount of them have filter data; work orders pulled database server (not local). on initial view prompt start_date , end_date, use datatype.date , organization use string, information get's stored in model pass in httppost. extracts data , displays it. now, because there lot of orders, made costume pages sort data, , use 2 variables, page , page_size, displayed , can set on view after valid workorderform submitted.

problem: problem facing right can't seem pass 2 parameters page , page_size, view controller @ same time. both of them work seem reset each other, example: on page 4, set page_size 20 50, , resets page 1, 1 alright, main on when chose page, reset page_size default (20). submitting has happen inside html.beginform() otherwise lose information stored in model.

edit: using pagedlist.

new problem: when select page calls [httpget], resetting model , page size. tried implement in index, failed miserably.

workorder:

 public class workorder {     [key]     public int id { get; set; }      public ipagedlist<mymodel> view_list { get; set; }     public workorderform work_form { get; set; } } 

controller:

[httpget]     public actionresult index(workorder model)     {         var list = new list<mymodel>();         model.view_list = list.topagedlist(1,1);         return view(model);     }       [httppost]     public actionresult index(workorder model, int? page, int? page_size, string start_date, string end_date, string org)     {         var list = new list<mymodel>();          if (modelstate.isvalid)         {             using (oracledbctx ctx = new oracledbctx())             {                 //database stuff                  int pagenumber = (page ?? 1);                 int pagesize = (page_size ?? 20);                   model.view_list = list.topagedlist(pagenumber, pagesize);                  return view(model);             }         }         modelstate.addmodelerror("", "incorrect information submitted");         return view();     } 

page info submission in view:

 @:page @(model.view_list.pagecount < model.view_list.pagenumber ? 0 : model.view_list.pagenumber) of @model.view_list.pagecount @html.pagedlistpager(model.view_list, page => url.action("index", "workorder",             new { page, viewbag.page_size, start_date = model.work_form.start_date, end_date = model.work_form.end_date, org = model.work_form.org })); 

question: how go passing both of parameters view , @ same time keep model information, if choosing update 1 parameter? if have suggestions on possible work around's happy hear ideas, pointing me in direction appreciated. if there might missing please say.

new question: how ether pagedlist call [httppost] index, or whats best way implement in default index controller?

following implementation of index in controller worked

public actionresult index(workorder model, int? page, int? page_size, string start_date, string end_date, string org)         {             if (model.work_form == null)             {                 if (start_date != null && end_date != null && org != null)                 {                     var form = new workorderform                     {                         start_date = start_date,                         end_date = end_date,                         org = org                     };                     model.work_form = form;                 }             }              if (model.work_form != null)             {                 using (oracledbctx ctx = new oracledbctx())                 {                     //do database stuff                     //var list = database(query).tolist()                      int pagenumber = (page ?? 1);                     int pagesize = (page_size ?? 20);                     int count = list.count;                     if (pagenumber - 1 > count / page_size)                     {                         pagenumber = 1;                     }                       model.view_list = list.topagedlist(pagenumber, pagesize);                      return view(model);                 }             }              return view();         }