c# - Insert/Delete/Update inside a dynamic table name in mvc using Entity Framework -

i have jsonresult code each insert/update/delete below in controller. want ask possible if pass id , tablename update , delete tablename passed. can write insert query in way?

so jsonresult this:-

public jsonresult deletefromtable()     {         int idtodelete = convert.toint32(request.form["itemid"]);         string mytablename = convert.tostring(request.form["tblname"]);          try         {              type tabletype = typeof(coursedesc);             switch (mytablename)             {                 case "coursetbl":                     tabletype = typeof(coursetbl);                     break;                 case "coursedesctbl":                     tabletype = typeof(coursedesc);                     break;                 case "coursesubdesc":                     tabletype = typeof(coursesubdesc);                     break;                 case "interntbl":                     tabletype = typeof(internship);                     break;                 case "contacttbl":                     tabletype = typeof(contact);                     break;             }              using (ebcontext db = new ebcontext())             {                 // want add insert/update/delete code here.                   return new jsonresult { data = results, jsonrequestbehavior = jsonrequestbehavior.allowget };             }          }         catch(exception ex) {             string innermessage = (ex.innerexception != null) ? ex.innerexception.message : "";             return new jsonresult { data = "not found", jsonrequestbehavior = jsonrequestbehavior.allowget };         }     } 

what cannot figure out how write ef query insert/update/delete. please help!!

i have approach case: first create generic class :

    internal class utilitymethods<tentity, tid> tentity : class     {       public static bool insertentity(entities dbcontext, tentity entity)         {             dbcontext.entry(entity).state = entitystate.added;             dbcontext.set<tentity>().add(entity);              dbcontext.savechanges();              return true;         }     } 

then use static method based on class dealing like:

case "coursetbl":     results = utilitymethods<coursetbl, int>.insertentity(dbcontext, myobject); break;