HttpContext.Request.Form 有值，分配给变量时为 null

发布于 2024-11-15 18:54:17 字数 875 浏览 3 评论 0原文

我不知所措。我们有一个处理来自客户端操作的回调的类

jQuery.ajax({data: data, error: null, success: null, type: "POST", dataType: 'json', url: "/mylogger.axd"});.

，我将 HttpContext.Request.Form 分配给一个变量。尽管它是非空的，并且具有我期望的所有参数，但我分配给它的变量是空的。

public class MyLogger : IHttpHandler, IRequiresSessionState
{
    public void ProcessRequest(HttpContext context)
    {
        NameValueCollection formParams = context.Request.Form;

        if (formParams == null)
        { ...

如果我将 Visual Studio 附加到进程，当它被触发时， context.Request.Form 肯定有一个值：

{response=http%3a%2f%2fXXX.XXXcom%2fproduct%2f12345%2f13528311&event=MYEVENT&objid=13528311&objtype=2}  System.Collections.Specialized.NameObjectCollectionBase {System.Web.HttpValueCollection}

然而， formParams 为 null。

啊？一般来说，是否有任何原因导致该值不会被复制到变量中？

原文

I am at a loss. We have a class that handles callbacks from client-side actions

jQuery.ajax({data: data, error: null, success: null, type: "POST", dataType: 'json', url: "/mylogger.axd"});.

I assign HttpContext.Request.Form to a variable. Though it is non-null, and has all the parameters I expect, the variable I assigned it to is null.

public class MyLogger : IHttpHandler, IRequiresSessionState
{
    public void ProcessRequest(HttpContext context)
    {
        NameValueCollection formParams = context.Request.Form;

        if (formParams == null)
        { ...

If I attach Visual Studio to the process, when this gets fired, context.Request.Form definitely has a value:

{response=http%3a%2f%2fXXX.XXXcom%2fproduct%2f12345%2f13528311&event=MYEVENT&objid=13528311&objtype=2}  System.Collections.Specialized.NameObjectCollectionBase {System.Web.HttpValueCollection}

And yet, formParams is null.

Huh? In general, is there any reason why the value wouldn't be copied into the variable?

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