I made a small project to understand the answer from Stephen Muecke here: Submit same Partial View called multiple times data to controller?
Almost everything works. The javascript adds new fields from the Partial View, and I can tell they're bound to the model by the "temp" values inserted by the controller method for the partial view.
However, when I submit the new fields the AddRecord() method throws an exception showing that the model isn't getting passed in ("Object reference not set to an instance of an object").
Also, when I view the page source, the BeginCollectionItem helper is inserting a hidden tag as it should around the table in the main view that displays pre-existing records, but not around the new fields that the javascript adds.
What am I doing wrong? I'm pretty new at this so thanks for your patience!
My main view:
@model IEnumerable<DynamicForm.Models.CashRecipient>
@using (Html.BeginForm("AddDetail", "CashRecipients", FormMethod.Post))
{
@Html.AntiForgeryToken()
<div id="CSQGroup">
</div>
}
<div>
<input type="button" value="Add Field" id="addField" onclick="addFieldss()" />
</div>
<script>
function addFieldss()
{
//alert("ajax call");
$.ajax({
url: '@Url.Content("~/CashRecipients/RecipientForm")',
type: 'GET',
success:function(result) {
//alert("Success");
var newDiv = document.createElement("div");
var newContent = document.createTextNode("Hi there and greetings!");
newDiv.appendChild(newContent);
newDiv.innerHTML = result;
var currentDiv = document.getElementById("div1");
document.getElementById("CSQGroup").appendChild(newDiv);
},
error: function(result) {
alert("Failure");
}
});
}
</script>
My Partial View:
@model DynamicForm.Models.CashRecipient
@using HtmlHelpers.BeginCollectionItem
@using (Html.BeginCollectionItem("recipients"))
{
<div class="editor-field">
@Html.LabelFor(model => model.Id)
@Html.LabelFor(model => model.cashAmount)
@Html.TextBoxFor(model => model.cashAmount)
@Html.LabelFor(model => model.recipientName)
@Html.TextBoxFor(model => model.recipientName)
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Save" class="btn btn-default" />
</div>
</div>
}
My model:
public class CashRecipient
{
public int Id { get; set; }
public string cashAmount { get; set; }
public string recipientName { get; set; }
}
In my controller:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult AddDetail([Bind(Include = "Id,cashAmount,recpientName")] IEnumerable<CashRecipient> cashRecipient)
{
if (ModelState.IsValid)
{
foreach (CashRecipient p in cashRecipient) {
db.CashRecipients.Add(p);
}
db.SaveChanges();
return RedirectToAction("Index");
}
return View(cashRecipient);
}
public ActionResult RecipientForm()
{
var data = new CashRecipient();
data.cashAmount = "temp";
data.recipientName = "temp";
return PartialView(data);
}
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