[MVC4 AllowHtml无法与字典配合使用

Question

我有课

public class TemplateViewModel
{
    [AllowHtml]
    public string Template { get; set; }

    [AllowHtml]
    public Dictionary<string, string> LocalizedContents { get; set; }
}

当我为模板输入html代码时，就可以了。当我输入LocalizedContents的html代码时，它会提示错误

System.Web.HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (LocalizedContents[en-us]="...ate:
FB: <a href="www.faceboo...").
   at System.Web.HttpRequest.ValidateString(String value, String collectionKey, RequestValidationSource requestCollection)
   at System.Web.HttpValueCollection.EnsureKeyValidated(String key)
   at System.Web.HttpValueCollection.GetValues(String name)
   at System.Web.Mvc.NameValueCollectionValueProvider.ValueProviderResultPlaceholder.GetResultFromCollection(String key, NameValueCollection collection, CultureInfo culture)
   at System.Web.Mvc.NameValueCollectionValueProvider.GetValue(String key, Boolean skipValidation)
   at System.Web.Mvc.ValueProviderCollection.GetValue(String key, Boolean skipValidation)
   at System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
   at System.Web.Mvc.DefaultModelBinder.CreateEntryForModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Type valueType, IModelBinder valueBinder, String modelName, Object modelKey)
   at System.Web.Mvc.DefaultModelBinder.UpdateDictionary(ControllerContext controllerContext, ModelBindingContext bindingContext, Type keyType, Type valueType)
   at System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
   at System.Web.Mvc.DefaultModelBinder.GetPropertyValue(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor, IModelBinder propertyBinder)
   at System.Web.Mvc.DefaultModelBinder.BindProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor)
   at System.Web.Mvc.DefaultModelBinder.BindProperties(ControllerContext controllerContext, ModelBindingContext bindingContext)
   at System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Object model)
   at System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
   at System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
   at System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<BeginInvokeAction>b__19(AsyncCallback asyncCallback, Object asyncState)

[用于词典的[AllowHtml]的解决方案？

我不喜欢使用[ValidateInput(false)]，因为它会带来安全隐患

我也不想在我的Web配置中包含<httpRuntime requestValidationMode="2.0" />

Answer 1

实现此目的的另一种方法是为数据类型创建一个类，并为该类的属性分配[AllowHtml]。

public class LocalizedContents
{
    [AllowHtml]
    public string Key { get; set; }

    [AllowHtml]
    public string Value { get; set; }
}

然后将类作为LocalizedContents属性的数据类型

public class TemplateViewModel
{
    public string Template { get; set; }

    public List<LocalizedContents> LocalizedContents { get; set; }
}