我正在关注[ASP.NET MVC 3入门] [1]。而且我无法添加/编辑Price = 9.99或9,99的值。它说:“值9.99对价格无效。”和“字段价格必须是数字。”
如何解决这个问题?
型号:
public class Movie
{
public int ID { get; set; }
public string Title { get; set; }
public DateTime ReleaseDate { get; set; }
public string Genre { get; set; }
public decimal Price { get; set; }
}
public class MovieDbContext : DbContext
{
public DbSet<Movie> Movies { get; set; }
}
Controller :
public class MovieController : Controller
{
private MovieDbContext db = new MovieDbContext();
//
// GET: /Movie/
public ViewResult Index()
{
var movie = from m in db.Movies
where m.ReleaseDate > new DateTime(1984, 6, 1)
select m;
return View(movie.ToList());
}
//
// GET: /Movie/Details/5
public ViewResult Details(int id)
{
Movie movie = db.Movies.Find(id);
return View(movie);
}
//
// GET: /Movie/Create
public ActionResult Create()
{
return View();
}
//
// POST: /Movie/Create
[HttpPost]
public ActionResult Create(Movie movie)
{
if (ModelState.IsValid)
{
db.Movies.Add(movie);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(movie);
}
//
// GET: /Movie/Edit/5
public ActionResult Edit(int id)
{
Movie movie = db.Movies.Find(id);
return View(movie);
}
//
// POST: /Movie/Edit/5
[HttpPost]
public ActionResult Edit(Movie movie)
{
if (ModelState.IsValid)
{
db.Entry(movie).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(movie);
}
//
// GET: /Movie/Delete/5
public ActionResult Delete(int id)
{
Movie movie = db.Movies.Find(id);
return View(movie);
}
//
// POST: /Movie/Delete/5
[HttpPost, ActionName("Delete")]
public ActionResult DeleteConfirmed(int id)
{
Movie movie = db.Movies.Find(id);
db.Movies.Remove(movie);
db.SaveChanges();
return RedirectToAction("Index");
}
protected override void Dispose(bool disposing)
{
db.Dispose();
base.Dispose(disposing);
}
}
}
View :
@model MvcMovies.Models.Movie
@{
ViewBag.Title = "Create";
}
<h2>Create</h2>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"> </script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<legend>Movie</legend>
<div class="editor-label">
@Html.LabelFor(model => model.Title)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.ReleaseDate)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.ReleaseDate)
@Html.ValidationMessageFor(model => model.ReleaseDate)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Genre)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Genre)
@Html.ValidationMessageFor(model => model.Genre)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Price)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Price)
@Html.ValidationMessageFor(model => model.Price)
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
public DbSet<Movie> Movies { get; set; }
}
最佳答案
2年后,我再次跌倒了。我以为ASP.NET MVC 5解决了这个问题,但事实并非如此。因此,这里介绍如何解决问题...
创建一个名为DecimalModelBinder
的类,如下所示,并将其添加到项目的根目录中:
using System;
using System.Globalization;
using System.Web.Mvc;
namespace YourNamespace
{
public class DecimalModelBinder : IModelBinder
{
public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
ValueProviderResult valueResult = bindingContext.ValueProvider
.GetValue(bindingContext.ModelName);
ModelState modelState = new ModelState { Value = valueResult };
object actualValue = null;
if(valueResult.AttemptedValue != string.Empty)
{
try
{
actualValue = Convert.ToDecimal(valueResult.AttemptedValue, CultureInfo.CurrentCulture);
}
catch(FormatException e)
{
modelState.Errors.Add(e);
}
}
bindingContext.ModelState.Add(bindingContext.ModelName, modelState);
return actualValue;
}
}
}
在
Global.asax.cs,
内部,可以在Application_Start()
中使用它,如下所示:ModelBinders.Binders.Add(typeof(decimal?), new DecimalModelBinder());
关于asp.net-mvc - mvc3中的十进制错误-该值对于字段无效,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11822480/