Agfdhyk

I am beginner in Asp.Net core 2.1 razor page, and I am facing a trouble trying to use IFormFile in a form with fields from other model - I am using razor pages.

In the Post method, the IFormFile object come null. On the page, after select a file, looks like the object was filled up, but in the controller, his value was lost.

Below are the models I am using:

using System;

using System.ComponentModel.DataAnnotations;

using System.ComponentModel.DataAnnotations.Schema;



namespace PSD.Models

{

    public class Contractor

    {

        public int ContractorID { get; set; }



        public string RegisteredNumber { get; set; }



        public string Name { get; set; }



        public string Alias { get; set; }



        public string LogoBytes { get; set; }

    }

}



using Microsoft.AspNetCore.Http;

using System.ComponentModel.DataAnnotations;



namespace PSD.Models

{

    public class FileUpload

    {

        public string FileName { get; set; }



        public IFormFile UploadFile { get; set; }

    }

}

My page:

@page "{id:int?}"

@model PSD.Pages.Contractors.EditModel



@{

    ViewData["Title"] = "Contratante";

}



<div class="m-portlet__head">

    <div class="m-portlet__head-caption">

        <div class="m-portlet__head-title">

            <span class="m-portlet__head-icon m--hide">

                <i class="la la-gear"></i>

            </span>

            <h3 class="m-portlet__head-text">

                Cadastro de Contratante - Alteração

            </h3>

        </div>

    </div>

</div>

<form method="post" class="m-form" enctype="multipart/form-data">

    <div asp-validation-summary="ModelOnly" class="text-danger"></div>

    <input type="hidden" asp-for="Contractor.ContractorID" />

    <div class="m-portlet__body">

        <div class="m-form__section m-form__section--first">

            <div class="form-group m-form__group">

                <label asp-for="Contractor.RegisteredNumber" class="control-label"></label>

                <input asp-for="Contractor.RegisteredNumber" class="form-control" />

                <span asp-validation-for="Contractor.RegisteredNumber" class="text-danger"></span>

            </div>

            <div class="form-group m-form__group">

                <label asp-for="Contractor.Name" class="control-label"></label>

                <input asp-for="Contractor.Name" class="form-control" />

                <span asp-validation-for="Contractor.Name" class="text-danger"></span>

            </div>

            <div class="form-group m-form__group">

                <label asp-for="Contractor.Alias" class="control-label"></label>

                <input asp-for="Contractor.Alias" class="form-control" />

                <span asp-validation-for="Contractor.Alias" class="text-danger"></span>

            </div>

            <div class="form-group m-form__group">

                <label asp-for="Contractor.LogoBytes" class="control-label"></label>

            </div>

            <label for="file" class="btn btn-success m-btn m-btn--icon"><i class="la la-cloud-upload"></i> Upload</label>*@

            <input asp-for="FileUpload.UploadFile" type="file" class="form-control" style="height:auto" />

        </div>

    </div>

    <div class="m-portlet__foot m-portlet__foot--fit">

        <div class="m-form__actions m-form__actions">

            <input type="submit" name="answer" value="Gravar" class="btn btn-primary" />

            <a asp-page="./Index" class="btn btn-secondary">

                <span>

                    Cancelar

                </span>

            </a>

        </div>

    </div>

</form>



@section Scripts {

    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}

}

And the Controller:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

using Microsoft.AspNetCore.Mvc;

using Microsoft.AspNetCore.Mvc.RazorPages;

using Microsoft.AspNetCore.Mvc.Rendering;

using Microsoft.EntityFrameworkCore;

using PSD.Data;

using PSD.Models;

using PSD.Utilities;



namespace PSD.Pages.Contractors

{

    public class EditModel : PageModel

    {

        private readonly PSD.Data.PSDContext _context;



        public EditModel(PSD.Data.PSDContext context)

        {

            _context = context;

        }



        [BindProperty]

        public FileUpload FileUpload { get; set; }



        [BindProperty]

        public Contractor Contractor { get; set; }



        public async Task<IActionResult> OnGetAsync(int? id)

        {

            if (id == null)

            {

                return NotFound();

            }



            Contractor = await _context.Contractor.FirstOrDefaultAsync(m => m.ContractorID == id);



            if (Contractor == null)

            {

                return NotFound();

            }

            return Page();

        }



        public async Task<IActionResult> OnPostAsync(string answer)

        {

            if (!ModelState.IsValid || string.IsNullOrWhiteSpace(answer))

            {

                return Page();

            }



            _context.Attach(Contractor).State = EntityState.Modified;



            try

            {

                await _context.SaveChangesAsync();

            }

            catch (DbUpdateConcurrencyException)

            {

                if (!ContractorExists(Contractor.ContractorID))

                {

                     return NotFound();

                }

                else

                {

                    throw;

                }

            }

            return RedirectToPage("./Index");

        }



        private bool ContractorExists(int id)

        {

            return _context.Contractor.Any(e => e.ContractorID == id);

        }

    }

}

Please, could anybody help me.

Thanks