Persisting Data To SQL Server via ASP.NET MVC - sql-server

Question

I am trying to persist the information in the 'auction' variable, to the table 'Auction', which has not been created yet. Entity framework is supposed to create it for me I understand. As you see, my program has made it to the point where the form data is contained in the 'auction' variable. But as you can see the debugger is stopped on 'db.Auction.Add(auction)'.
Why won't the program proceed by letting the db add the data in the 'auction' variable, to the Auction table?
I'd appreciate it.
Thanks,
CM
Thank you for replying so far but the suggestions are not working. I've written in my code as well as shown the error message again which is the same message I had that started this thread.
The View
#model MvcAuction.Models.Auction
#{
ViewBag.Title = "CreateAuctionItem";
}
<h2>#ViewBag.Title.</h2>
<div id="createAuctionItemSection">
#using (Html.BeginForm("Create", "Auctions", FormMethod.Post,
new { #class = "form-horizontal", #id =
"registerForm", role = "form" }))
{
#Html.AntiForgeryToken()
<h4>Create An Item For Auction.</h4>
<hr />
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.Title, new { #class = "col-md-2 control-
label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.Title, new { #class = "form-control", #id = "title" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.StartDate, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(model => model.StartDate, "{0:yyyy-MM-dd}", new { type = "date" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.EndDate, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(model => model.EndDate, "{0:yyyy-MM-dd}", new { type = "date" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.DeliveryCost, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.DeliveryCost, new { #class = "form-control", #id = "deliveryCost" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.StartBid, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.StartBid, new { #class = "form-control", #id = "startBid" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.BuyNowPrice, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.BuyNowPrice, new { #class = "form-control", #id = "buyNowPrice" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.BuyNowEnabled, new { #Value = "Show Buy Now Price?", #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.CheckBoxFor(m => m.BuyNowEnabled, new { #class = "form-control", #id = "buyNowEnabled" })
</div>
</div>
#Html.ValidationSummary("", new { #class = "text-danger" })
<div class="form-group">
#Html.LabelFor(m => m.Description, new { #class = "col-md-2 control-label" })
<div class="col-md-10">
#Html.TextBoxFor(m => m.Description, new { #class = "form-control", #id = "description" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" class="btn btn-default" value="Create Item" />
</div>
</div>
}
<img src="~/Content/Images/progress.gif" id="progress" style="display:none;" />
<h3>#ViewBag.TheMessage</h3>
</div><!--End createAuctionItemSection-->
The Model
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Web;
namespace MvcAuction.Models
{
public class Auction
{
public long Id { get; set; }
[Required]
[Column(TypeName = "varchar")]
[Display(Name = "Title")]
public String Title { get; set; }
public string ImageURL { get; set; }
[Required]
[Column(TypeName = "date")]
[Display(Name = "Start Date")]
public DateTime StartDate { get; set; }
[Required]
[Column(TypeName = "date")]
[Display(Name = "End Date")]
public DateTime EndDate { get; set; }
[Required]
[Column(TypeName = "decimal")]
[Display(Name = "Delivery Cost")]
public decimal DeliveryCost { get; set; }
[Required]
[Column(TypeName = "decimal")]
[Display(Name = "Start Bid")]
public decimal StartBid { get; set; }
[Column(TypeName = "decimal")]
[Display(Name = "Buy Now Price")]
public decimal BuyNowPrice { get; set; }
[Column(TypeName = "bool")]
[Display(Name = "Buy Now Enabled")]
public Boolean BuyNowEnabled { get; set; }
[Column(TypeName = "varchar")]
[Display(Name = "Description")]
public String Description { get; set; }
[Column(TypeName = "int")]
[Display(Name = "View Count")]
public int ViewCount = 0;
public decimal? getCurrentTopBid()
{
return StartBid;
}
}
}
The Controller Action
[HttpPost]
public ActionResult Create(Auction auction )
{
if (ModelState.IsValid)
{
var db = new AuctionsDataContext();
db.Auction.Add(auction);
db.SaveChanges();
return RedirectToAction("Index");
}
return View();
}

Answer 1

Action is already apart of the DbContext class as a DbSet. Also the view already sends the Model information back you don't need that as an overloaded parameter. Change your create post to
public class AuctionsController : Controller
{
private readonly AuctionsDataContext_context;
public AuctionsController(AuctionsDataContext context)
{
_context = context;
}
public ActionResult Create ( Bind[("Id,Title,StartDate,EndDate,DeliveryCost,StartBid,BuyNowPrice,BuyNowEnabled,Description")] Auction auction)
{
if (ModelState.IsValid)
{
_context.Add(auction);
await _context.SaveChangesAsync();
return RedirectToAction("Index");
}
return View();
}