c# - MVC post form return null -

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• how pass ienumerable list controller in mvc including checkbox state? 1 answer

i'm trying make dynamic form tests. problem when submit from, in post method in controller list gq null, im expecting filled data filled in form. can guess have @html.editorformodel() , data binding, dont understand how works. idea? thank you

model:

public class generatedquestions {     public int generatedquestionsid { get; set; }      public string questiontext { get; set; }     public list<studentanswer> questionanswers { get; set; }      public int studenttestsid { get; set; }      public virtual studenttest studenttests { get; set; } } 

view:

@model ienumerable<project.models.generatedquestions>  @{     viewbag.title = "starttest"; }  @using (html.beginform()) {    @html.editorformodel()      foreach (var question in model)     {         <br />         <h1>@question.questiontext</h1>          foreach (var answer in question.questionanswers)         {             @html.checkboxfor(x => answer.waschecked)             @html.displayfor(x => answer.answertext)             @html.hiddenfor(x => answer.generatedquestionsid)             <br />         }     }     <input type="submit" value="submit" /> } 

controller:

public actionresult starttest(int id) {     list<generatedquestions> generatedquestions = db.studenttests.find(id).generatedquetions.tolist();     return view(generatedquestions); }   [httppost] public actionresult starttest(list<generatedquestions> gq) {     //stuff     return redirecttoaction("index"); } 

as seen on here:

asp.net mvc 4 - loop posts model collection properties foreach not

mvc helpers hate foreach loops. go for loop , should work fine.

write both loop , inspect them using web developer tools see difference in 'id' , 'name' attribute.