ASP.Net Core Post a Collection

Question

Hi,

I'm bringing the data into the html table. This data also has more than one row. Then I want to save this data in database. But it seems empty.

What is the solution to this?

Classes

public class DusumDto  
   {  
       public string BeyannameNO { get; set; }  
       public string StokKodu { get; set; }  
       public string ArtikelName { get; set; }  
       public string TicariTanim { get; set; }  
       public string Karisim { get; set; }  
       public decimal Agirlik { get; set; }  
       public string Mensei { get; set; }  
       public string GtipNo { get; set; }  
       public string Marka { get; set; }  
       public string Artikel { get; set; }  
       public string KumasKodu { get; set; }  
       public decimal BirimFiyat { get; set; }  
       public decimal ToplamFiyat { get; set; }  
       public int Adet { get; set; }  
       public int KoliAdet { get; set; }  
       public double? BrutKg { get; set; }  
       public double? NetKg { get; set; }  
   }  
   
   public class VM_Dusum : DusumDto  
   {  
       public List<DusumDto> Dusumler { get; set; }  
   }  

View

<form asp-controller="Dusum" asp-action="DusumAdd">  
   
    <div class="col-md-12">  
   
        <div class="table-responsive">  
            <div class="table-responsive">  
   
                <table class="table table-bordered mb-0">  
                    <thead>  
                        <tr>  
   
                            <th>Stok Kodu</th>  
                            <th>Artikel Adı</th>  
                            <th>Beyanname No</th>  
                            <th>Ticari Tanım</th>  
                            <th>Karışım</th>  
                            <th>Ağırlık</th>  
   
                            <th>Menşei</th>  
                            <th>Gtip No</th>  
                            <th>Marka</th>  
                            <th>Artikel</th>  
                            <th>Kumaş Kodu</th>  
                            <th>Birim Fiyat</th>  
   
                            <th>Toplam Fiyat</th>  
                            <th>Adet</th>  
                            <th>Koli Adet</th>  
                        </tr>  
                    </thead>  
                    <tbody>  
   
                        @if (Model != null)  
                        {  
   
   
   
                            @foreach (var item in Model.Dusumler)  
                            {  
   
   
                                <tr class="bg-dark text-white">  
   
   
                                    <td>  
                                        @item.StokKodu  
                                    </td>  
                                    <td>  
                                        @item.ArtikelName  
                                    </td>  
   
                                    <td>@item.BeyannameNO</td>  
                                    <td>@item.TicariTanim</td>  
                                    <td>@item.Karisim</td>  
                                    <td>@item.Agirlik</td>  
   
                                    <td>@item.Mensei</td>  
                                    <td>@item.GtipNo</td>  
                                    <td>@item.Marka</td>  
   
                                    <td>@item.Artikel</td>  
                                    <td>@item.KumasKodu</td>  
                                    <td>@item.BirimFiyat</td>  
   
                                    <td>@item.ToplamFiyat</td>  
                                    <td>@item.Adet</td>  
                                    <td>@item.KoliAdet</td>  
                                </tr>  
   
   
                                <input hidden asp-for="@item.StokKodu" type="text">  
                                <input hidden asp-for="@item.ArtikelName" type="text">  
                                <input hidden asp-for="@item.BeyannameNO" type="text">  
                                <input hidden asp-for="@item.TicariTanim" type="text">  
                                <input hidden asp-for="@item.Karisim" type="text">  
                                <input hidden asp-for="@item.Agirlik" type="text">  
                                <input hidden asp-for="@item.Mensei" type="text">  
                                <input hidden asp-for="@item.GtipNo" type="text">  
                                <input hidden asp-for="@item.Marka" type="text">  
   
                                <input hidden asp-for="@item.Artikel" type="text">  
                                <input hidden asp-for="@item.KumasKodu" type="text">  
                                <input hidden asp-for="@item.BirimFiyat" type="text">  
                                <input hidden asp-for="@item.ToplamFiyat" type="text">  
                                <input hidden asp-for="@item.Adet" type="text">  
                                <input hidden asp-for="@item.KoliAdet" type="text">  
                                 
   
                            }  
   
   
                        }  
                    </tbody>  
                </table>  
            </div>  
        </div>  
   
    </div>  
   
    <div class="form-group ">  
        <button type="submit" style="float:right" class="text-right btn btn-primary">Düşüm Ekle</button>  
    </div>  
</form>  

Controller

public IActionResult DusumAdd(VM_Dusum vM_Dusum)  
      {       
   
          return View();  
      }  

Answer 1

The field names must be indexed otherwise the model binder does not know a collection is passed. Please see the following blog.

Binding Complex Collections

Answer 2

Hi,

First of all, thanks. It happened as follows. But how do I do it if I need to do it with foreach. I was wondering about him.

  for (int i = 0; i < Model.Dusumler.Count; i++)  
                                        {  
                                            <tr class="bg-dark text-white">  
  
                                                <td>  
                                                 
                                                    <input value="@Model.Dusumler[i].StokKodu" name="[@i].StokKodu" type="text">  
                                                </td>  
                                                <td>  
                                                     
                                                    <input value="@Model.Dusumler[i].ArtikelName" name="[@i].ArtikelName" type="text">  
                                                </td>  
  
  
                                            </tr>