Question

我想在上面的动作过滤器方法中使用动作参数。请帮帮我

Public Overrides Sub OnResultExecuted(filterContext As ResultExecutedContext)
   Dim actionParameter = filterContext.ActionParameters(parameterName)
 End Sub


 var params={};
 params.Comments=getvaluebyid("TxtComment");
 $.ajax({
         type: "POST",
         url: '/ControllerName/ActionName',
         async: true,
         data: $.toJSON(params),
         dataType: "json",
         contentType: 'application/json; charset=utf-8',

Answer 1

您可以通过以下方式获取Action参数：

    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
       var controllerActionDescriptor = filterContext.ActionDescriptor as System.Web.Mvc.ReflectedActionDescriptor;
       ParameterDescriptor[]pdes= controllerActionDescriptor.GetParameters();
       foreach (var item in pdes)
       {
           var parameterName = item.ParameterName;
           var parameterType=item.ParameterType;
       }
    }

要获取值，您可以这样做：

HttpContext.Current.Request.QueryString["Id"]// where "Id" is the key, you can use index here too.

希望它有所帮助！

Answer 2

我找到了解决这个问题的方法。找到以下解决方案以获取json结果。对于以下方法，我们需要传递请求。

private string GetJsonContents(System.Web.HttpRequestBase Request)
{
  string JsonContents = string.Empty;
  try
    {
     using (Stream receiveStream = Request.InputStream)
      {
      using (StreamReader readStream = new StreamReader(receiveStream))
      {
       receiveStream.Seek(0, System.IO.SeekOrigin.Begin);
       JsonContents = readStream.ReadToEnd();
      }
     }
    }
    catch
    {
     enter code here
    }
    return JsonContents;
}

Answer 3

我遇到了同样的问题！这是我的解决方法。

public override void OnActionExecuted(ActionExecutedContext filterContext)
    {   var myValue = ((MyClass)((JsonResult)filterContext.Result).Data).Value; }

我希望这有帮助！

如何在OnResultExecuted动作过滤器中获取ActionParameters

3 个答案: