How To Edit Nested List in Mvc

Problem - List binding gets null

My View

@model List
@{
ViewBag.Title = "Home Page";
int i = 0;
int j = 0;
}
@using (Html.BeginForm("Index", "Home", FormMethod.Post))
{
class="table">
@foreach (var item in Model)
{
@Html.Hidden("ItemSiteCosting.Index", (@i + 10))
@Html.TextBox("ItemSiteCosting[" + (@i + 10) + "].name", Model[i].name)
@item.name
class="table">
@{ j = 0;}
@foreach (var item2 in item.xyz.costing.Sitecosting)
{
@Html.TextBox("ItemSiteCosting[" + (@i + 10) + "].xyz.costing.Sitecosting[" + (@j + 10) + "].Amount", Model[i].xyz.costing.Sitecosting[j].Amount)
@item2.Amount
j = j + 1;
}
i = i + 1;
}
"submit" value="Submit" />
}

My models

public class Site
{
public string name { get; set; }
public BestPO xyz { get; set; }
}
public class BestPO
{
public BestPO()
{
costing = new SiteCost();
}
public string Cost { get; set; }
public SiteCost costing { get; set; }
}
public class SiteCost
{
public SiteCost()
{
Sitecosting = new List();
}
public string Name { get; set; }
public List Sitecosting {get;set;}
}
public class Money
{
public decimal? Amount { get; set; }
}

Hi Manoj,

Kindly note the following solution,

public class Product
{
public string Name { get; set; }
public List Clients { get; set; }
}

public class Client
{
public string Name { get; set; }
public string Number { get; set; }
}

public class HomeController : Controller
{
// GET: Home
public ActionResult Index()
{
List lstProducts = new List();
lstProducts.Add(
new Product()
{
Name = "Product A",
Clients =
new List() {
new Client() { Name = "Client A", Number = "123" },
new Client() { Name = "Client B", Number = "456" },
},
});
lstProducts.Add(
new Product()
{
Name = "Product B",
Clients =
new List() {
new Client() { Name = "Client C", Number = "852" },
new Client() { Name = "Client D", Number = "741" },
},
});
return View(lstProducts);
}
[HttpPost]
public ActionResult Update(List lst)
{
var data = lst;
return RedirectToAction("index");
}
}

@model List
@{
ViewBag.Title = "Index";
}
Index
@using (Html.BeginForm("Update", "Home"))
{
for (int i = 0; i < Model.Count; i++)
{
@Html.TextBoxFor(a => a[i].Name)
            @for (int t = 0; t < Model[i].Clients.Count; t++)
            {












            }


  @Html.TextBoxFor(c => c[i].Clients[t].Name)
  @Html.TextBoxFor(c => c[i].Clients[t].Number)
}
"submit" name="save" value="save" />
}

Good Luck.

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Mohammad Sbeeh8y ago
Accepted answer
Hi Manoj,

Kindly note the following solution,
public class Product
{
    public string Name { get; set; }
    public List Clients { get; set; }
}
public class Client
  {
      public string Name { get; set; }
      public string Number { get; set; }
  }
public class HomeController : Controller
{
     // GET: Home
     public ActionResult Index()
     {
         List lstProducts = new List();
         lstProducts.Add(
             new Product()
             {
                 Name = "Product A",
                 Clients =
             new List() {
                 new Client() { Name = "Client A", Number = "123" },
                 new Client() { Name = "Client B", Number = "456" },

             },
             });

         lstProducts.Add(
         new Product()
         {
             Name = "Product B",
             Clients =
         new List() {
             new Client() { Name = "Client C", Number = "852" },
             new Client() { Name = "Client D", Number = "741" },

         },

         });


         return View(lstProducts);
     }
     [HttpPost]
     public ActionResult Update(List lst)
     {
         var data = lst;

         return RedirectToAction("index");
     }
}

@model List
@{
    ViewBag.Title = "Index";
}

Index


@using (Html.BeginForm("Update", "Home"))
{


    for (int i = 0; i < Model.Count; i++)
    {
        @Html.TextBoxFor(a => a[i].Name)


            @for (int t = 0; t < Model[i].Clients.Count; t++)
            {












            }


  @Html.TextBoxFor(c => c[i].Clients[t].Name)
  @Html.TextBoxFor(c => c[i].Clients[t].Number)


    }

    "submit" name="save" value="save" />
}
Good Luck.

How To Edit Nested List in Mvc

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