C# IValidatableObject验证方法不工作
我在MVC3中使用了这个类 每个属性的验证属性都正常工作,但当调用Validate方法并返回任何结果时,它不会发回表单。 有人能帮忙吗C# IValidatableObject验证方法不工作,c#,asp.net-mvc-3,validation,ivalidatableobject,C#,Asp.net Mvc 3,Validation,Ivalidatableobject,我在MVC3中使用了这个类 每个属性的验证属性都正常工作,但当调用Validate方法并返回任何结果时,它不会发回表单。 有人能帮忙吗 public class Register : IValidatableObject { [DataType(DataType.Text)] [Display(Name = "District Name")] [Required(AllowEmptyStrings = false, ErrorMessage = "You must ent
public class Register : IValidatableObject
{
[DataType(DataType.Text)]
[Display(Name = "District Name")]
[Required(AllowEmptyStrings = false, ErrorMessage = "You must enter a District Name")]
[StringLength(40, MinimumLength = 1, ErrorMessage = "District Name must be between 1 and 40 characters")]
public string DistrictName { get; set; }
[DataType(DataType.Text)]
[Display(Name = "Url Quick Find")]
[Required(ErrorMessage = "You must provide a Quick Find Name")]
[StringLength(15, MinimumLength = 3, ErrorMessage = "Url Quick Find must be between 3 and 15 characters")]
public string QuickFind { get; set; }
[DataType(DataType.Text)]
[Display(Name = "User name")]
[Required(AllowEmptyStrings = false, ErrorMessage = "User name is requred")]
[StringLength(10, MinimumLength = 1, ErrorMessage = "Url Quick Find must be between 1 and 10 characters")]
public string Username { get; set; }
[DataType(DataType.Password)]
[Display(Name = "Password")]
[Required(AllowEmptyStrings = false, ErrorMessage = "Password is requred")]
public string Password { get; set; }
[DataType(DataType.Password)]
[Display(Name = "Re-Enter Password")]
[Required(AllowEmptyStrings = false, ErrorMessage = "You must re-enter your password to confirm you have entered it correctly")]
public string PasswordConfirm { get; set; }
[DataType(DataType.Text)]
[Display(Name = "Display Name")]
[Required(AllowEmptyStrings = false, ErrorMessage = "Display Name is requred")]
[StringLength(20, MinimumLength = 1, ErrorMessage = "Display Name must be between 1 and 20 characters")]
public string DisplayName { get; set; }
[DataType(DataType.EmailAddress)]
[Display(Name = "Email Address")]
[Required(AllowEmptyStrings = false, ErrorMessage = "Email Address is requred")]
[StringLength(50, MinimumLength = 4, ErrorMessage = "Email Address must be between 4 and 50 characters")]
public string EmailAddress { get; set; }
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
Regex lettersOnly = new Regex("^[a-zA-Z]*$");
if (!lettersOnly.IsMatch(QuickFind))
yield return new ValidationResult("Only letters A - Z are allowed in the Quick Find", new string[] { "QuickFind" });
if (!lettersOnly.IsMatch(QuickFind))
yield return new ValidationResult("Only letters A - Z are allowed for your User name", new string[] { "Username" });
if (Password != PasswordConfirm)
yield return new ValidationResult("Passwords do not match", new string[] { "Password", "PasswordConfirm" });
}
}
查看代码:
[HttpPost]
public ActionResult Index(Register registration)
{
try
{
User newUser = RegistrationManager.Register(registration);
RedirectToAction("Index", "District", newUser.ID);
}
catch (Exception ex)
{
ModelState.AddModelError("There has been an Error during Registration", ex.Message);
RedirectToAction("Details", "Error", ex);
}
return View();
}
@model PubGames.Data.Register
@{
ViewBag.Title = "Register";
}
<h2>
Register</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)
<div class="editor-label">
@Html.LabelFor(model => model.DistrictName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DistrictName)
@Html.ValidationMessageFor(model => model.DistrictName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.QuickFind)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.QuickFind)
@Html.ValidationMessageFor(model => model.QuickFind)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Username)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Username)
@Html.ValidationMessageFor(model => model.Username)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Password)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Password)
@Html.ValidationMessageFor(model => model.Password)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.PasswordConfirm)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.PasswordConfirm)
@Html.ValidationMessageFor(model => model.PasswordConfirm)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.DisplayName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DisplayName)
@Html.ValidationMessageFor(model => model.DisplayName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.EmailAddress)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.EmailAddress)
@Html.ValidationMessageFor(model => model.EmailAddress)
</div>
<p>
<input type="submit" value="Register" />
</p>
}
@model PubGames.Data.Register
@{
ViewBag.Title=“寄存器”;
}
登记
@使用(Html.BeginForm())
{
@Html.ValidationSummary(true)
@LabelFor(model=>model.DistrictName)
@EditorFor(model=>model.DistrictName)
@Html.ValidationMessageFor(model=>model.DistrictName)
@LabelFor(model=>model.QuickFind)
@EditorFor(model=>model.QuickFind)
@Html.ValidationMessageFor(model=>model.QuickFind)
@LabelFor(model=>model.Username)
@EditorFor(model=>model.Username)
@Html.ValidationMessageFor(model=>model.Username)
@LabelFor(model=>model.Password)
@EditorFor(model=>model.Password)
@Html.ValidationMessageFor(model=>model.Password)
@LabelFor(model=>model.PasswordConfirm)
@EditorFor(model=>model.PasswordConfirm)
@Html.ValidationMessageFor(model=>model.PasswordConfirm)
@LabelFor(model=>model.DisplayName)
@EditorFor(model=>model.DisplayName)
@Html.ValidationMessageFor(model=>model.DisplayName)
@LabelFor(model=>model.EmailAddress)
@EditorFor(model=>model.EmailAddress)
@Html.ValidationMessageFor(model=>model.EmailAddress)
}
你说的“不发回表单”是什么意思?你是说表单上的错误没有显示出来?
确保
您没有正确重定向。您必须返回重定向到操作:
[HttpPost]
public ActionResult Index(Register registration)
{
try
{
User newUser = RegistrationManager.Register(registration);
return RedirectToAction("Index", "District", newUser.ID);
}
catch (Exception ex)
{
ModelState.AddModelError("There has been an Error during Registration", ex.Message);
return RedirectToAction("Details", "Error", ex);
}
return View(registration);
}
此外,在异常情况下重定向时,您将丢失添加到modelstate的所有错误。太多问题
典型的操作方法如下所示:
public ActionResult DoSomething(MyModel model)
{
if (ModelState.IsValid)
{
return RedirectToAction("somethign");
}
return View(model);
}
这可以做几件事,但主要是在模型状态无效时将其返回给视图。您没有这样做,事实上您甚至没有将模型返回到视图。您没有检查状态是否有效,因此即使验证失败,它也会尝试调用register方法。您也没有返回您的操作结果,即RedirectToAction,您只是在调用它。您还需要向我们显示控制器和视图中的相关代码。添加控制器和视图代码仅供参考,对于代码示例中显示的验证,您真的不需要
IValidatableObject
;您可以单独使用数据注释获得相同的结果:[RegularExpression(@“^[a-zA-Z]*$”,ErrorMessage=“在{0}中只允许字母a-Z”)
和[Compare(“Password”,ErrorMessage=“Passwords not match.”]
。数据注释还提供客户端验证。