我创建了自定义ASP.Net MVC模型验证,如下所示:
internal class LocalizedRequiredAttribute : RequiredAttribute, IClientValidatable
{
public List<string> DependentProperties { get; private set; }
public List<string> DependentValues { get; private set; }
public string Props { get; private set; }
public string Vals { get; private set; }
public string RequiredFieldValue { get; private set; }
public LocalizedRequiredAttribute(string resourceId = "")
{
if (string.IsNullOrEmpty(resourceId))
ErrorMessage = ResourcesHelper.GetMessageFromResource("RequiredValidationErrorMessage");
else
ErrorMessage = ResourcesHelper.GetMessageFromResource(resourceId);
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
string msg = FormatErrorMessage(metadata.GetDisplayName());
yield return new ModelClientValidationRequiredRule(msg); //Exception
}
}
internal class LocalizedNumericRegularExpressionAttribute : RegularExpressionAttribute, IClientValidatable
{
public LocalizedNumericRegularExpressionAttribute(string resourceId = "") : base(@"^\d+$")
{
if (string.IsNullOrEmpty(resourceId))
ErrorMessage = ResourcesHelper.GetMessageFromResource("NumberRequiredValidationErrorMessage");
else
ErrorMessage = ResourcesHelper.GetMessageFromResource(resourceId);
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
string msg = FormatErrorMessage(metadata.GetDisplayName());
yield return new ModelClientValidationRequiredRule(msg); //Exception
}
}
以下是我的模特:
public class MyModel
{
[LocalizedRequired]
[LocalizedNumericRegularExpression]
public int Emp_No { get; set; }
}
每当我使用上面的模型导航到表单时,就会发生以下异常。
Validation type names in unobtrusive client validation rules must be unique. The following validation type was seen more than once: required
如果删除IClientValidatable
,上面的代码就可以,但客户端验证不起作用。
我的代码出了什么问题?
答案 0 :(得分:2)
我找到了解决方案,我们必须在global.asax
中的Application_Start中添加以下代码DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(LocalizedRequiredAttribute), typeof(RequiredAttributeAdapter));
DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(LocalizedNumericRegularExpressionAttribute), typeof(RegularExpressionAttributeAdapter));
答案 1 :(得分:0)
您将ValidationType的值与MVC自动验证相同。因此,您必须更改ValidationType =&#34; name unique&#34;的值。在ModelClientValidationRule或其派生类中。名称应该避免MVC自动生成名称,例如&#39; date&#39;,&#39; required&#39; ... 其他解决方案是通过将这些代码放在app start
来关闭自动验证DataAnnotationsModelValidatorProvider.AddImplicitRequiredAttributeForValueTypes = false;