跳过特定操作时，过滤器过滤的行动在全球范围内注册 [英] Skip Filter on particular Action when action filter is registered globally

问题描述

i'hv写我自己的行动过滤器，并在Global.asax文件中登记的，现在我的问题是我怎么跳
该过滤器的具体行动，我想过这个通过创建例如自定义属性 DontValidate
并将其放置在为此我想跳过验证行动，并在我的行动过滤器code我把一个条件，如果动作包含
DontValidate 属性，那么跳过验证。所以目前我没有得到如何
实现它：

低于code是我的验证措施筛选

 公共类ValidationActionFilter：ActionFilterAttribute
    {
        公共覆盖无效OnActionExecuting（HttpActionContext上下文）
        {
            如果（context.Request.Method.ToString（）==选项）回报;
            //布尔dontValidate = context.ActionDescriptor。 //这里即时通讯卡怎么办
            VAR的ModelState = context.ModelState;
            如果（！modelState.IsValid）
            {
                JsonValue误差=新的JSONObject（）;
                的foreach（在modelState.Keys VAR键）
                {
                    //一些东西
                }                context.Response = context.Request.CreateResponse＆LT; JsonValue＆GT;（的HTTPStatus code.BadRequest，错误）;
            }
        }
    }
 

解决方案

您可以获取被用来装饰从的 ActionDescriptor 属性控制器动作的属性列表背景：

 公共类ValidationActionFilter：ActionFilterAttribute
{
    公共覆盖无效OnActionExecuting（HttpActionContext上下文）
    {
        如果（context.ActionDescriptor.GetCustomAttributes＆LT; D​​ontValidateAttribute＆GT;（）任何（）。）
        {
            //控制器的动作与[DontValidate]装饰
            //自定义属性=＆GT;没有做任何事情。
            返回;
        }        如果（context.Request.Method.ToString（）==选项）回报;
        VAR的ModelState = context.ModelState;
        如果（！modelState.IsValid）
        {
            JsonValue误差=新的JSONObject（）;
            的foreach（在modelState.Keys VAR键）
            {
                //一些东西
            }            context.Response = context.Request.CreateResponse＆LT; JsonValue＆GT;（的HTTPStatus code.BadRequest，错误）;
        }
    }
}
 

i'hv written my own action filter and registered in global.asax file, now my problem is how do i skip this filter for specific actions, i thought about this by creating a custom attribute for e.g DontValidate and place it over the action for which i want to skip the validation, and in my action filter code i'll put a condition that if the action contains DontValidate attribute then skip the validation. So currently i'm not getting how to implement it:

below code is my validation action filter

   public class ValidationActionFilter : ActionFilterAttribute
    {
        public override void OnActionExecuting(HttpActionContext context)
        {
            if (context.Request.Method.ToString() == "OPTIONS") return;
            //bool dontValidate =  context.ActionDescriptor. // here im stuck how to do
            var modelState = context.ModelState;
            if (!modelState.IsValid)
            {
                JsonValue errors = new JsonObject();
                foreach (var key in modelState.Keys)
                {
                    // some stuff
                }

                context.Response  = context.Request.CreateResponse<JsonValue>(HttpStatusCode.BadRequest, errors);
            }
        }
    }

解决方案

You could get the list of attributes that were used to decorate the controller action from the ActionDescriptor property of the context:

public class ValidationActionFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(HttpActionContext context)
    {
        if (context.ActionDescriptor.GetCustomAttributes<DontValidateAttribute>().Any())
        {
            // The controller action is decorated with the [DontValidate]
            // custom attribute => don't do anything.
            return;
        }

        if (context.Request.Method.ToString() == "OPTIONS") return;
        var modelState = context.ModelState;
        if (!modelState.IsValid)
        {
            JsonValue errors = new JsonObject();
            foreach (var key in modelState.Keys)
            {
                // some stuff
            }

            context.Response = context.Request.CreateResponse<JsonValue>(HttpStatusCode.BadRequest, errors);
        }
    }
}

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