ASP.NET edit action will not save -

i have website used complete health , safety self assessments when go edit assessment not save edited data. 1 have , ideas?

this controller:

// get: /wsassessment/edit  public actionresult edit(int id = 0) {     wsassessment wsassessment = db.wsassessments.find(id);     if (wsassessment == null)     {         return httpnotfound();     }     var view = view(wsassessment);      view.viewbag.origin = "edit";      return view; }  // // post: /wsassessment/edit  [httppost] [validateantiforgerytoken] public actionresult edit(wsassessment wsassessment) {     modelstate.clear();       if (modelstate.isvalid)     {                       db.entry(wsassessment).state = entitystate.modified;         db.savechanges();         return redirecttoaction("index");     }     return view(wsassessment); } 

this view:

@model healthy_and_safety_website.models.wsassessment  @{     viewbag.title = "edit"; }  <h2>edit</h2>  @using (html.beginform()) {     @html.antiforgerytoken()     @html.validationsummary(true) <fieldset>     <legend>wsassessment</legend>       @html.hiddenfor(model => model.id)     @html.validationsummary(true)      <div class="editor-label">         @html.labelfor(model => model.username)     </div>     <div class="editor-field">         @html.editorfor(model => model.username)         @html.validationmessagefor(model => model.username)     </div>      <div class="editor-label">         @html.labelfor(model => model.date)     </div>     <div class="editor-field">         @html.editorfor(model => model.date)         @html.validationmessagefor(model => model.date)     </div>      <div class="editor-label">         @html.labelfor(model => model.workstation)     </div>     <div class="editor-field">         @html.editorfor(model => model.workstation)         @html.validationmessagefor(model => model.workstation)     </div>      <section id="editsection">         <table style="width:0%">             <tr>                 <th>question</th>                 <th>yes</th>                 <th>problem?</th>                 <th>suggested solution</th>                 <th>complete?</th>                 <th>completed by</th>                 <th>completion notes</th>             </tr>              <tr>                 <td>                     @html.editorfor(m => m.wsassessmentanswers)                 </td>             </tr>          </table>     </section>      <p>         <input type="submit" value="save" />     </p> </fieldset> }  <div>     @html.actionlink("back list", "index") </div> 

and wsassessmentanswer model:

@if (@viewbag.origin == "edit") {     <tr class="wsassessmenttablequestion">         <td>             @html.valuefor(model => model.wsassessmenttemplatequestion.question)         </td>         <td>             <div class="editor-field">@html.checkboxfor(model => model.answer)</div>         </td>          <td>             <div class="editor-field">@html.checkboxfor(model => model.problem)</div>         </td>         <td>             <div class="editor-field">@html.textareafor(model => model.actionrequired)</div>             @html.validationmessagefor(model => model.actionrequired)             @html.hiddenfor(model => model.wsassessmentquestionid)             @html.hiddenfor(model => model.question)             @html.hiddenfor(model => model.guidance)             @html.hiddenfor(model => model.wsassessmentid)             @html.hiddenfor(model => model.id)         </td>          <td class="wsassessmentadmincolumn">             <div class="editor-field">@html.checkboxfor(model => model.actioncomplete)</div>          </td>         <td class="wsassessmentadmincolumn">             <div class="editor-field">@html.editorfor(model => model.actioncompleteby)</div>         </td>         <td class="wsassessmentadmincolumn">             <div class="editor-field">@html.textareafor(model => model.actioncompletenotes)</div>         </td>      </tr> } 

i have figured out :)

if (modelstate.isvalid) {                   db.entry(wsassessment).state = entitystate.modified;     db.savechanges();     return redirecttoaction("index"); } return view(wsassessment); 

this part of code wrong wsassessmentanswers not being db.entry. here code works:

if (modelstate.isvalid)             {                 foreach (var item in wsassessment.wsassessmentanswers)                 {                     db.entry(item).state = entitystate.modified;                 }                  db.entry(wsassessment).state = entitystate.modified;                 db.savechanges();                 return redirecttoaction("index");             }             return view(wsassessment);