部分视图上的 MVC 4 自定义验证不显示错误消息?
MVC 4 Custom validation on Partial View don't show error message ?
当我点击索引页面上的提交按钮时,看到下图:
我的问题:
我只是自定义必需属性,为什么 ProductDescription 的错误消息不显示?
我的所有文件,请参阅以下部分:
ProductModel.cs
namespace TestCustomValidation.Models
{
public class ProductModel
{
[Required(ErrorMessage = "It's for test for ProductName")]
public string ProductName { get; set; }
[CustomRequired(ErrorMessage = "It's for test for ProductDescription")]
public string ProductDescription { get; set; }
}
}
index.cshtml
...
@{Html.RenderAction("Form");}
...
_FormPartial.cshtml
@model TestCustomValidation.Models.ProductModel
@using (Html.BeginForm("FormSubmit", "Home", new { @id = "form", @name = "form" }))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
<table cellpadding="0" cellspacing="0">
<tr>
<th colspan="2" align="center">Person Details</th>
</tr>
<tr>
<td>Name: </td>
<td>
@Html.TextBoxFor(m => m.ProductName)
</td>
<td>
@Html.ValidationMessageFor(m => m.ProductName)
</td>
</tr>
<tr>
<td>Description: </td>
<td>
@Html.TextBoxFor(m => m.ProductDescription)
</td>
<td>
@Html.ValidationMessageFor(m => m.ProductDescription)
</td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
}
HomeController.cs
public class HomeController : Controller
{
public ActionResult Index()
{
ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";
return View();
}
public PartialViewResult Form()
{
ProductModel model = new ProductModel();
return PartialView("_FormPartial", model);
}
[HttpPost]
public ActionResult FormSubmit(ProductModel model)
{
if (ModelState.IsValid)
{
string name = model.ProductName;
return RedirectToAction("About");
}
return PartialView("_FormPartial", model);
}
}
CustomRequiredAttribute.cs
namespace TestCustomValidation.CustomValidation
{
public class CustomRequiredAttribute : RequiredAttribute
{
}
}
感谢提前!
我敢打赌,您的页面中包含 jQuery 验证,但它实际上不会进入您的服务器,而是向您显示与该输入字段关联的消息作为客户端验证。
我的回答,供进一步参考:
在Global.asax.cs
protected void Application_Start()
{
// Add Custom Attribute
System.Web.Mvc.DataAnnotationsModelValidatorProvider.RegisterAdapter(
typeof(TestCustomValidation.CustomValidation.CustomRequiredAttribute),
typeof(System.Web.Mvc.RequiredAttributeAdapter));
}
当我点击索引页面上的提交按钮时,看到下图:
我的问题: 我只是自定义必需属性,为什么 ProductDescription 的错误消息不显示?
我的所有文件,请参阅以下部分:
ProductModel.cs
namespace TestCustomValidation.Models
{
public class ProductModel
{
[Required(ErrorMessage = "It's for test for ProductName")]
public string ProductName { get; set; }
[CustomRequired(ErrorMessage = "It's for test for ProductDescription")]
public string ProductDescription { get; set; }
}
}
index.cshtml
...
@{Html.RenderAction("Form");}
...
_FormPartial.cshtml
@model TestCustomValidation.Models.ProductModel
@using (Html.BeginForm("FormSubmit", "Home", new { @id = "form", @name = "form" }))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)
<table cellpadding="0" cellspacing="0">
<tr>
<th colspan="2" align="center">Person Details</th>
</tr>
<tr>
<td>Name: </td>
<td>
@Html.TextBoxFor(m => m.ProductName)
</td>
<td>
@Html.ValidationMessageFor(m => m.ProductName)
</td>
</tr>
<tr>
<td>Description: </td>
<td>
@Html.TextBoxFor(m => m.ProductDescription)
</td>
<td>
@Html.ValidationMessageFor(m => m.ProductDescription)
</td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="Submit" /></td>
</tr>
</table>
}
HomeController.cs
public class HomeController : Controller
{
public ActionResult Index()
{
ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";
return View();
}
public PartialViewResult Form()
{
ProductModel model = new ProductModel();
return PartialView("_FormPartial", model);
}
[HttpPost]
public ActionResult FormSubmit(ProductModel model)
{
if (ModelState.IsValid)
{
string name = model.ProductName;
return RedirectToAction("About");
}
return PartialView("_FormPartial", model);
}
}
CustomRequiredAttribute.cs
namespace TestCustomValidation.CustomValidation
{
public class CustomRequiredAttribute : RequiredAttribute
{
}
}
感谢提前!
我敢打赌,您的页面中包含 jQuery 验证,但它实际上不会进入您的服务器,而是向您显示与该输入字段关联的消息作为客户端验证。
我的回答,供进一步参考:
在Global.asax.cs
protected void Application_Start()
{
// Add Custom Attribute
System.Web.Mvc.DataAnnotationsModelValidatorProvider.RegisterAdapter(
typeof(TestCustomValidation.CustomValidation.CustomRequiredAttribute),
typeof(System.Web.Mvc.RequiredAttributeAdapter));
}