Sort Asp.net Data Tables

Front-endCode:

<Asp: hiddenfield runat = "  Server  " Id = "  Descing  " /> <Asp: hiddenfield runat = "  Server  " Id = "  DT  " /> <Asp: button runat = " Server  " Id = "  Sortbtn  " Onclick = "  Lvvehicle_pagepropertieschanged  " Style = "  Display: none;  " /> <TD Class = "  Tcenter  " Width =85 Onclick = "  Sort (3)  " > Input date </TD> Jquery code: function sort (FID ){  If ($ ( "  # Sortfield  " ). Val () = FID ){  If ($ ( "  # Descing  " ). Val () ="  ASC  "  ) {$ (  "  # Descing  " ). Val ( "  Desc  "  );}  Else  {$ (  "  # Descing  " ). Val ( " ASC  "  );}}  Else  {$ (  "  # Sortfield  "  ). Val (FID); $ (  "  # Descing  " ). Val ( "  ASC  "  );} Document. getelementbyid ( "  Sortbtn  "  ). Click ();  Return   False  ;} 

Background code:

 
Protected VoidLvvehicle_pagepropertieschanged (ObjectSender, eventargs e ){//The page is displayed, and data is rebound.}
 

 Data Source binding: lvvehicle. datasource = Bllcehicl. getallvehiclelist ( "" ,"" , Convert. toint32 (checkint (sortfield. value, 0  ), Descing. value );  //  Mark of the order  Writing the Dal layer:  Public Iqueryable getallvehiclelist ( "" , Int Sortfield, String  Descing) {XXXX xx = New  XXXX ();  VaR Query = XX. xxx.Where  (.....);  Switch  (Sortfield ){  //  Default submission date                  Case   0  :  Default  : Query = Query. orderbydescending (qu => Qu. subdate );  Break  ; Case   1  :  //  License plate number                      If (( "  Desc  "  ). Equals (descing) {Query = Query. orderby (qu => Qu. base_tabletnumber );}  Else  {Query = Query. orderbydescending (qu =>Qu. base_tabletnumber );}  Break  ;  Case   2  :  //  Category                      If (( "  Desc  "  ). Equals (descing) {Query = Query. orderby (qu =>Qu. inftype );}  Else  {Query = Query. orderbydescending (qu => Qu. inftype );}  Break  ;  //  .......  }  Return  Query ;} 

 

Summary: