c# - 是否有任何属性可以避免验证模型？

Question

我的 Controller 中有以下操作:

[HttpGet]
public ActionResult Office(GestionOffice model)
{
    ModelState.Clear();
    model.Initialize();
    return View(model);
}

我不需要通过 GET 进行操作，进行验证。这将帮助我执行 GET 调用。

这将是我的理想情况:

[HttpGet]
[NotValidateModel]
public ActionResult Office(GestionOffice model)
{
    model.Initialize();
    return View(model);
}

谢谢。

编辑

NotValidateModel 阐明了不存在，将归因于大小写以避免验证。

移动模型的原因是MOCK模型

编辑二

我有我的 POST Action ，我需要通过 GET 接收我的 Action ，没有验证的模型，以成功完成 Controller 中 Action 的测试

[HttpGet]
[NotValidateModel]
public ActionResult Office(GestionOffice model)
{
    model.Initialize();
    return View(model);
}

[HttpPost]
[ActionName("Office")]
[NotValidateModel]
public ActionResult OfficePost(GestionOffice model)
{
    if(ModelState.IsValid)
    {
        model.Save();
        return RedirectToAction("List");
    }

    model.Initialize();
    return View(model);
}

@Mark解决方案版

在我看来，我有一些 Action 调用，我必须用 Action 和 Controller 创建一个键。

自定义模型元数据

public class CustomModelMetaData : ModelMetadata
{
    public CustomModelMetaData(ModelMetadataProvider provider, Type containerType, Func<object> modelAccessor, Type modelType, string propertyName)
        : base(provider, containerType, modelAccessor, modelType, propertyName)
    {
    }

    public override IEnumerable<ModelValidator> GetValidators(ControllerContext context)
    {
        var itemKey = this.CreateKey(context.RouteData);
        if (context.HttpContext.Items[itemKey] != null && bool.Parse(context.HttpContext.Items[itemKey].ToString()) == true)
        {
            return Enumerable.Empty<ModelValidator>();
        }

        return base.GetValidators(context);
    }

    private string CreateKey(RouteData routeData)
    {
        var action = (routeData.Values["action"] ?? null).ToString().ToLower();
        var controller = (routeData.Values["controller"] ?? null).ToString().ToLower();
        return string.Format("NoValidation_{0}_{1}", controller, action);
    }
}

过滤器

public class NoValidationAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        var itemKey = this.CreateKey(filterContext.ActionDescriptor);
        filterContext.HttpContext.Items.Add(itemKey, true);
    }

    private string CreateKey(ActionDescriptor actionDescriptor)
    {
        var action = actionDescriptor.ActionName.ToLower();
        var controller = actionDescriptor.ControllerDescriptor.ControllerName.ToLower();
        return string.Format("NoValidation_{0}_{1}", controller, action);
    }
}

编辑过滤器

可能会出现这样的情况，在主视图中有一个foreach来调用属性为NoValidation的几个分部 View 。在本例中，包括一个检查 key 的控件。由于在key中包含了controller的名字和action，这个key几乎是唯一的，只能在描述的情况下重复

public class NoValidationAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
        var itemKey = this.CreateKey(filterContext.ActionDescriptor);
        if (!filterContext.HttpContext.Items.Contains(itemKey))
        {
            filterContext.HttpContext.Items.Add(itemKey, true);
        }
    }

    private string CreateKey(ActionDescriptor actionDescriptor)
    {
        var action = actionDescriptor.ActionName.ToLower();
        var controller = actionDescriptor.ControllerDescriptor.ControllerName.ToLower();
        return string.Format("NoValidation_{0}_{1}", controller, action);
    }
}

Answer 1

[查看下面的更新以及@ANDRES 在问题中提到的编辑]

您尝试做的事情并不难实现，我不确定您为什么要这么做。我试图通过自定义 ModelMetaData 和过滤器(未完全测试)来完成。

我们无法从模型绑定(bind)器或元数据提供程序中读取装饰在操作上的属性，因此我们需要一个过滤器。过滤器在 HttpContext.Items 中放置了一些值，我们可以从自定义元数据提供程序 (http://stackoverflow.com/questions/6198155/asp-net-mvc-modelbinder -getting-action-method).

过滤器

public class NoValidationAttribute : FilterAttribute, IAuthorizationFilter
{
    public void OnAuthorization(AuthorizationContext filterContext)
    {
      // please see the edits in question to see the key generation
      filterContext.HttpContext.Items.Add("NoValidation", true);
    }
}

自定义模型元数据

public class CustomModelMetaData : ModelMetadata
{
    public CustomModelMetaData(ModelMetadataProvider provider, Type containerType, Func<object> modelAccessor, Type modelType, string propertyName) :
      base(provider, containerType, modelAccessor, modelType, propertyName)
    {
    }

    public override System.Collections.Generic.IEnumerable<ModelValidator> GetValidators(ControllerContext context)
    {
      if (context.HttpContext.Items["NoValidation"] != null && bool.Parse(context.HttpContext.Items["NoValidation"].ToString()) == true)
        return Enumerable.Empty<ModelValidator>();

      return base.GetValidators(context);
    }
}

自定义模型元数据提供者

public class CustomModelMetaDataProvider : DataAnnotationsModelMetadataProvider
{
    protected override ModelMetadata CreateMetadata(System.Collections.Generic.IEnumerable<Attribute> attributes,
      Type containerType, Func<object> modelAccessor,
      Type modelType,
      string propertyName)
    {
      return new CustomModelMetaData(this, containerType, modelAccessor, modelType, 
         propertyName); 
    }
}

Global.asax.cs

ModelMetadataProviders.Current = new CustomModelMetaDataProvider();

用法

[HttpGet]
[NoValidation]
public ActionResult Office(GestionOffice model)
{
   ...
}

=================================更新 ====== ===============================

与其通过继承 ModelMetadata 创建 CustomModelMetaData，我认为继承 DataAnnotationsModelMetadata 会更好。

public class CustomModelMetaData : DataAnnotationsModelMetadata
{
    public CustomModelMetaData(DataAnnotationsModelMetadataProvider provider, Type containerType,   
            Func<object> modelAccessor, Type modelType, string propertyName,            
            DisplayColumnAttribute displayColumnAttribute) :            
    base(provider, containerType, modelAccessor, modelType, propertyName, displayColumnAttribute)
    {
    }

    public override IEnumerable<ModelValidator> GetValidators(ControllerContext context)
    {
        var itemKey = this.CreateKey(context.RouteData);

        if (context.HttpContext.Items[itemKey] != null && 
           bool.Parse(context.HttpContext.Items[itemKey].ToString()) == true)
        {
             return Enumerable.Empty<ModelValidator>();
        }

        return base.GetValidators(context);
    }

    private string CreateKey(RouteData routeData)
    {
       var action = (routeData.Values["action"] ?? null).ToString().ToLower();
       var controller = (routeData.Values["controller"] ?? null).ToString().ToLower();
       return string.Format("NoValidation_{0}_{1}", controller, action);
    }
}

在 CustomModelMetaDataProvider 中，您必须设置一些属性。

public class CustomModelMetaDataProvider : DataAnnotationsModelMetadataProvider
{
    protected override ModelMetadata CreateMetadata(IEnumerable<Attribute> attributes,
      Type containerType, Func<object> modelAccessor, Type modelType, string propertyName)
    {
      var displayColumnAttribute = new List<Attribute>(attributes).OfType<DisplayColumnAttribute>().FirstOrDefault();

      var baseMetaData = base.CreateMetadata(attributes, containerType, modelAccessor, modelType, propertyName);

      // is there any other good strategy to copy the properties?
      return new CustomModelMetaData(this, containerType, modelAccessor, modelType,  propertyName, displayColumnAttribute)
      {
        TemplateHint = baseMetaData.TemplateHint,
        HideSurroundingHtml = baseMetaData.HideSurroundingHtml,
        DataTypeName = baseMetaData.DataTypeName,
        IsReadOnly = baseMetaData.IsReadOnly,
        NullDisplayText = baseMetaData.NullDisplayText,
        DisplayFormatString = baseMetaData.DisplayFormatString,
        ConvertEmptyStringToNull = baseMetaData.ConvertEmptyStringToNull,
        EditFormatString = baseMetaData.EditFormatString,
        ShowForDisplay = baseMetaData.ShowForDisplay,
        ShowForEdit = baseMetaData.ShowForEdit,
        Description = baseMetaData.Description,
        ShortDisplayName = baseMetaData.ShortDisplayName,
        Watermark = baseMetaData.Watermark,
        Order = baseMetaData.Order,
        DisplayName = baseMetaData.DisplayName,
        IsRequired = baseMetaData.IsRequired
      };
    }
}