C＃asp.net问题在表单上具有文件类型和文本

Question

I'm going straight to the point here guys,

I have a form. when I save the form... it only gets the firstname, middlename and lastname.. it doesn't get the files... however, if I only get the photo and comment out other inputs... the photo is captured on my model.. I dunno why it behaves like this.. I'm really new to asp.net mvc.. so please bear with me..

@model Impulse.ViewModels.AgentViewModel

@{
    ViewBag.Title = "AgentForm";
    Layout = "~/Views/Shared/_SiteLayout.cshtml";
}

<div class="custom-container">
    <h1 class="title"><strong>Add New Agent</strong></h1>
    <hr />
   @using (Html.BeginForm("Save", "Agent", FormMethod.Post, new { enctype = "multipart/form-data" }))
   {

    <div class="row">
        <div class="col-md-3">
            <div id="preview">
                <img src="~/Content/Assets/no-image.png" id="profile_image" class="img-thumbnail" />
            </div>
            <div class="form-group">
                <label>Profile Picture</label>
                <input type="file" name="photo" id="photo" />
            </div>
        </div>
        <div class="col-md-9">
            <div class="row">
                <div class="col-md-4">
                    <div class="form-group">
                        @Html.LabelFor(m => m.Agent.FirstName)
                        @Html.TextBoxFor(m => m.Agent.FirstName, new { @class = "form-control" })
                        @Html.ValidationMessageFor(m => m.Agent.FirstName)
                    </div>
                </div>
            </div>
            <div class="row">
                <div class="col-md-4">
                    <div class="form-group">
                        @Html.LabelFor(m => m.Agent.MiddleName)
                        @Html.TextBoxFor(m => m.Agent.MiddleName, new { @class = "form-control" })
                        @Html.ValidationMessageFor(m => m.Agent.MiddleName)
                    </div>
                </div>
            </div>

            <div class="row">
                <div class="col-md-4">
                    <div class="form-group">
                        @Html.LabelFor(m => m.Agent.LastName)
                        @Html.TextBoxFor(m => m.Agent.LastName, new { @class = "form-control" })
                        @Html.ValidationMessageFor(m => m.Agent.LastName)
                    </div>
                </div>
            </div>
        </div>
    </div>


    <input type="submit" class="btn btn-primary" value="Save" />
   }


</div>

Controller

   [HttpPost]
    public ActionResult Save(AgentModel agent)
    {
        //I debug here to see the data passed by my view
        return Content("Sample");
    }

Model

public class AgentModel
{
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string MiddleName { get; set; }
        [FileSize(10240)]
        [FileTypes("jpg,jpeg,png")]
        public HttpPostedFileBase photo { get; set; }

    }

Answer 1

you can try like this

Model

public class UploadFileModel 
{
    public UploadFileModel()
    {
        Files = new List<HttpPostedFileBase>();
    }

    public List<HttpPostedFileBase> Files { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string MiddleName { get; set; }
}

View

@using (Html.BeginForm("UploadData", "Home", FormMethod.Post, new { encType="multipart/form-data" }))
{
    @Html.TextBoxFor(m => m.FirstName)
    <br /><br />

    @Html.TextBoxFor(m => m.Files, new { type = "file", name = "Files" })<br /><br />
    <input type="submit" value="submit" name="submit" id="submit" />
}

Controller

public ActionResult UploadData(UploadFileModel model)
{
    var file = model.Files[0];
    return View(model);
}

Answer 2

1. you are binding to view to AgentViewModel so you will get AgentViewModel when you post server. so the parameter to action save should be viewmodel. Or Else change view to bind to AgentModel.
2. The file control that you have used is html input type. try using below code.

@Html.TextBoxFor(m => Model.File, new { type = "file" , accept=".pdf"}) @Html.ValidationMessageFor(m => Model.File)