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我目前經歷的MVC教程書呆子晚餐使用MVS 2010我已經起身到第7步，但我剛纔注意到，當我現在去造屏，這是不完全正確。MVC書呆子晚餐CreateView的不顯示EVENTDATE
- 標題輸入框似乎包含
ViewBag.Title而不是作爲空白。 - 的
EventDate輸入框爲空時，它應該從現在起被自動設置爲7天。
我不記得它是這樣的教程早些時候。
下面是從DinnersController.cs中的這段，處理創建：
//
// GET: /Dinners/Create
public ActionResult Create()
{
Dinner dinner = new Dinner()
{
EventDate = DateTime.Now.AddDays(7)
};
return View(new DinnerFormViewModel(dinner));
}
//
// POST: /Dinners/Create
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(Dinner dinner)
{
if (ModelState.IsValid)
{
try
{
dinner.HostedBy = "SomeUser";
dinnerRepository.Add(dinner);
dinnerRepository.Save();
return RedirectToAction("Details", new { id = dinner.DinnerID });
}
catch
{
ModelState.AddModelErrors(dinner.GetRuleViolations());
}
}
return View(new DinnerFormViewModel(dinner));
}
這裏是查看Create.cshtml
@model NerdDinner.Models.DinnerFormViewModel
@{
ViewBag.Title = "Host a Dinner";
}
<h2>Host a Dinner</h2>
@Html.ValidationSummary("Please correct the errors and try again")
@using (Html.BeginForm()) {
<fieldset>
<p>
@Html.LabelFor(model => Model.Dinner.Title)
<br />
@Html.TextBox("Title")
@Html.ValidationMessage("Title", "*")
</p>
<p>
@Html.LabelFor(model => Model.Dinner.EventDate)
<br />
@Html.TextBox("EventDate")
@Html.ValidationMessage("EventDate", "*")
</p>
<p>
@Html.LabelFor(model => Model.Dinner.Description)
<br />
@Html.TextArea("Description")
@Html.ValidationMessage("Description", "*")
</p>
<p>
@Html.LabelFor(model => Model.Dinner.Address)
<br />
@Html.TextBox("Address")
@Html.ValidationMessage("Address", "*")
</p>
<p>
@Html.LabelFor(model => Model.Countries)
<br />
@Html.DropDownList("Country", Model.Countries)
@Html.ValidationMessage("Country", "*")
</p>
<p>
@Html.LabelFor(model => Model.Dinner.ContactPhone)
<br />
@Html.TextBox("ContactPhone")
@Html.ValidationMessage("ContactPhone", "*")
</p>
<p>
@Html.LabelFor(model => Model.Dinner.Latitude)
<br />
@Html.TextBox("Latitude")
@Html.ValidationMessage("Latitude", "*")
</p>
<p>
<label for="Longitude">Longitude:</label>
<br />
@Html.TextBox("Longitude")
@Html.ValidationMessage("Longitude", "*")
</p>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
最後這裏是在瀏覽器中輸出：
任何人都知道WH我失蹤了？
編輯 - 添加了晚餐型號
using System;
using System.Collections.Generic;
using System.Data.Linq;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Text; //added this - not in tut
using System.Text.RegularExpressions; //added this - not in tut
namespace NerdDinner.Models
{
[Bind(Include = "Title,Description,EventDate,Address,Country,ContactPhone,Latitude,Longitude")]
public partial class Dinner
{
public bool IsValid
{
get { return (GetRuleViolations().Count() == 0); }
}
public IEnumerable<RuleViolation> GetRuleViolations()
{
if (String.IsNullOrEmpty(Title))
yield return new RuleViolation("Title required", "Title");
if (String.IsNullOrEmpty(Description))
yield return new RuleViolation("Description required", "Description");
if (String.IsNullOrEmpty(HostedBy))
yield return new RuleViolation("HostedBy required", "HostedBy");
if (String.IsNullOrEmpty(Address))
yield return new RuleViolation("Address required", "Address");
if (String.IsNullOrEmpty(Country))
yield return new RuleViolation("Country required", "Country");
if (String.IsNullOrEmpty(ContactPhone))
{
yield return new RuleViolation("ContactPhone required", "ContactPhone");
}
else
{
if (!PhoneValidator.IsValidNumber(ContactPhone, Country))
yield return new RuleViolation("Phone# does not match country", "ContactPhone");
}
yield break;
}
partial void OnValidate(ChangeAction action)
{
if (!IsValid)
throw new ApplicationException("Rule voilations prevent saving");
}
}
public class RuleViolation
{
public string ErrorMessage { get; private set; }
public string PropertyName { get; private set; }
public RuleViolation(string errorMessage, string propertyName)
{
ErrorMessage = errorMessage;
PropertyName = propertyName;
}
}
public class PhoneValidator
{
static IDictionary<string, Regex> countryRegex = new Dictionary<string, Regex>()
{
{ "USA", new Regex("^[2-9]\\d{2}-\\d{3}-\\d{4}$")},
{ "UK", new Regex("(^1300\\d{6}$)|(^1800|1900|1902\\d{6}$)|(^0[2|3|7|8]{1}[0-9]{8}$)|(^04\\decimal{2,3}\\decimal{6}$)")},
{ "Netherlands", new Regex("(^\\+[0-9]{2}|^\\+[0-9]{2}\\(0\\)|^\\(\\+[0-9]{2}\\)\\(0\\)|^00[0-9]{2}|^0)([0-9]{9}$|[0-9\\-\\s]{10}$)")},
};
public static bool IsValidNumber(string phoneNumber, string country)
{
if (country != null && countryRegex.ContainsKey(country))
return countryRegex[country].IsMatch(phoneNumber);
else
return false;
}
public static IEnumerable<string> Countries
{
get
{
return countryRegex.Keys;
}
}
}
public class DinnerFormViewModel
{
// Properties
public Dinner Dinner { get; private set; }
public SelectList Countries { get; private set; }
// Contructor
public DinnerFormViewModel(Dinner dinner)
{
Dinner = dinner;
Countries = new SelectList(PhoneValidator.Countries, dinner.Country);
}
}
}
對於視圖中的所有TextBox和ValidationMessage實例是否相同？ –
是的，你明白了！我剛剛更新了一些更詳細的答案，但是，一般來說，你應該使用@ Html。*對於幫助者處理強類型視圖 – Tommy
好吧，這似乎解決了原來的問題，但現在我已經取代了所有'@ Html.TextBox（）用於'@ Html.TextBoxFor'，同樣用於'@ Html.ValidationMessage'在處理錯誤時不再將紅色astrix應用於輸入框或紅色hi-light到輸入框iteself，儘管它仍然在頁面頂部顯示錯誤。 –