c# - MVC Just populate viewbag once, between page default action result and httppost -

let's populate viewbag object in page action result this

public actionresult miemployeedetails() {     var employees = _db.geo_employees.select(x => new selectlistitem     {         value = x.name,         text = x.name     }).tolist();     viewbag.employees = employees;     return view(); } 

and populate in view such

<%= html.dropdownlist("employees") %> 

that's fine when hit submit button , goes httppost action result i.e.

[httppost] public actionresult miemployeedetails(formcollection fc) {     return view(); } 

i null reference exception on viewbag option. in httppost action result need reset viewbag object created in original page load action result ?

each request independent. need reinitialize view data if call view again post. exemption data sent client during post