在自定义筛选器属性更改ActionExecutingContext值 [英] Changing ActionExecutingContext values in Custom Filter Attribute

问题描述

我有我想要使用某些ActionResults来看看正在尝试的数据和设置，其中一些规则被违反值自定义过滤器的属性。

I have a custom filter attribute that I want to use on certain ActionResults to look at the data being attempted and to set values where certain rules are violated.

所以;

public class SpecialActionFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        foreach (string value in filterContext.Controller.ValueProvider.Keys)
        {
            string h = filterContext.Controller.ValueProvider[value].AttemptedValue;

            if (h == "1")
            {
                //set the value of the key to be say "one".    
            }
        }

        base.OnActionExecuting(filterContext);
    }

}

这可能吗？

推荐答案

您可以检查或修改将要传递给操作的参数 - 看到 ActionExecutingContext.ActionParameters 此属性。这是一个非常通用的解决方案，虽然。如果你能提供你想要做的事情多一点的背景下，我们也许能够提供更多的相关建议。

You can inspect or modify the parameters that will be passed to the action - see the ActionExecutingContext.ActionParameters property for this. This is a very general solution, though. If you could provide a little more context on what exactly you're trying to do, we might be able to provide more relevant suggestions.

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