Html.HiddenFor with preset value

asp.net-mvc

Solution

The correct way to set a preset value is to pass it in via the model (MVC appears to ignore the "value" parameter if you set it). To accomplish what you're looking for, in your action:

public ActionResult MyAction() {
  var model = new MyModel {
    idv = myPresetId,
    etat = false
  };
  return View( model );
}

Then you don't have to do anything in your view except have:

<%: Html.HiddenFor( model => model.idv ) %>
<%: Html.HiddenFor( model => model.etat ) %>

Problem

This part was sloved thanks to `Ethan Brown` I want to set the value of my `Html.HiddenFor` helper with preset value This is my code : ``` <%: Html.HiddenFor(model => model.idv, new { @value = ViewBag.id })%> <%: Html.HiddenFor(model => model.etat, new { @value = "false" })%> ``` But when execute my code i get the error that model.idv and modele.etat are null. This is seconde part no sloved till now : This is my action : ``` public ActionResult Reserver(string id) { var model = new Models.rservation { idv = id, etat = false }; return View(model); } [HttpPost] public ActionResult Reserver(Models.rservation model) { if (ModelState.IsValid) { entity.AddTorservation(model); entity.SaveChanges(); return View(); } else { return View(model); } } ``` And this is my view page : ``` <% using (Html.BeginForm("Reserver", "Home", FormMethod.Post, new { @class = "search_form" })) { %> //some code textbox to fill <input type="submit" value="Create" /> <% } %> ``` So when i click on submit button the model.idv is set again on null value

Original source