I have my view models :
public class POReceiptViewModel
{
public virtual int PONumber { get; set; }
public virtual string VendorCode { get; set; }
public virtual IList<POReceiptItemViewModel> POReceiptItems { get; set; }
public POReceiptViewModel()
{
POReceiptItems = new List<POReceiptItemViewModel>();
}
}
public class POReceiptItemViewModel
{
public virtual string ItemCode { get; set; }
public virtual string ItemDesription { get; set; }
public virtual decimal OrderedQuantity { get; set; }
public virtual decimal ReceivedQuantity { get; set; }
public virtual DateTime ReceivedDate { get; set; }
public POReceiptItemViewModel()
{
ReceivedDate = DateTime.Now;
}
}
Then my controller has two actions, one get and one post:
public ActionResult CreatePOReceipt(int poNumber)
{
PurchaseOrder po = PurchasingService.GetPurchaseOrder(poNumber);
POReceiptViewModel poReceiptViewModel = ModelBuilder.POToPOReceiptViewModel(po);
return View("CreatePOReceipt", poReceiptViewModel);
}
[HttpPost]
public ActionResult CreatePOReceipt(POReceiptViewModel poReceiptViewModel)
{
// Here the problem goes. The items in the poReceiptViewModel.POReceiptItems has lost. the count became zero.
return View("Index");
}
And in my View, I can display the model properly and by using @Html.HiddenFor<> I can persist view model data as I wanted to. But not on the List<> navigation property.
@model POReceiptViewModel
@using (Html.BeginForm())
{
<fieldset>
<legend>Purchase Order</legend>
<label>For PO # :</label>
@Html.HiddenFor(m => m.PONumber)
@Html.DisplayTextFor(m => m.PONumber)
<label>Vendor Code :</label>
@Html.HiddenFor(m => m.VendorCode)
@Html.DisplayTextFor(m => m.VendorCode)
</fieldset>
<fieldset>
<legend>Received Items</legend>
<table class="tbl" id="tbl">
<thead>
<tr>
<th>Item Code</th><th>Item Description</th><th>OrderedQuantity</th><th>Received Quantity</th><th>Received Date</th>
</tr>
</thead>
<tbody>
@Html.HiddenFor(m => m.POReceiptItems) // I'm not really sure if this is valid
@if (Model.POReceiptItems.Count > 0)
{
foreach (var item in Model.POReceiptItems)
{
<tr>
<td>@Html.DisplayTextFor(i => item.ItemCode)</td>@Html.HiddenFor(i => item.ItemCode)
<td>@Html.DisplayTextFor(i => item.ItemDesription)</td>@Html.HiddenFor(i => item.ItemDesription)
<td>@Html.DisplayTextFor(i => item.OrderedQuantity)</td>@Html.HiddenFor(i => item.OrderedQuantity)
<td>@Html.TextBoxFor(i => item.ReceivedQuantity)</td>
<td>@Html.TextBoxFor(i => item.ReceivedDate)</td>
</tr>
}
}
</tbody>
</table>
</fieldset>
<input type="submit" name="Received" value="Received" />
}
PROBLEM: POReceiptItems lost when the form submitted. As much as possible I don't want to use TempData["POReceiptItems"] = Model.POReceiptItems but even if I use it, the value entered into ReceivedQuantity and ReceivedDate are not save into the TempData.
Thanks in advance!
try
@for (int i = 0; i < Model.POReceiptItems.Count(); i++)
{
<tr>
<td>@Html.DisplayTextFor(m => m.POReceiptItems[i].ItemCode)</td>@Html.HiddenFor(m => m.POReceiptItems[i].ItemCode)
<td>@Html.DisplayTextFor(m => m.POReceiptItems[i].ItemDesription)</td>@Html.HiddenFor(m => m.POReceiptItems.ItemDesription) <td>@Html.DisplayTextFor(m => m.POReceiptItems[i].OrderedQuantity)</td>@Html.HiddenFor(m => m.POReceiptItems[i].OrderedQuantity)
<td>@Html.TextBoxFor(m => m.POReceiptItems[i].ReceivedQuantity)</td>
<td>@Html.TextBoxFor(m => m.POReceiptItems[i].ReceivedDate)</td>
</tr>
}
also read this blog post to understand how model binding to a list works
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