从客户端的 ASP.NET PageMethods 获取异常详细信息

发布于 2024-07-22 17:46:45 字数 729 浏览 1 评论 0原文

我有一个 pagemethod，我可以从 JavaScript 调用它说

Pagemethods.MyMethod(MyParameter, onsucess, onfailure);

在后面的代码中，我有这样的内容：

[WebMethod]
public static void MyMethod(Param)
{
   try{
     //DoSomething..
   }
   catch(exception ex)
   {
      //Log the exception and rethrow
      throw new exception(ex.innerexception);
   }
}

现在我面临的问题是：

每当我确实遇到异常时，我从后面的代码中重新抛出异常

但是在 onfailure 方法中，我只是收到一条通用消息说 “服务器方法 MyMethod 因以下错误而失败：”

我似乎没有获取异常详细信息，而只获取通用异常，

我如何获取 JavaScript 上的异常详细信息，以便根据 UI/JavaScript 端处理它。

我已经验证，这不是 web.config 中自定义错误设置的问题。

有人可以告诉我这里发生了什么吗？

PS：我已经单步执行了每一行代码，并且记录后的异常会使用正确的异常详细信息（即消息）重新抛出。

原文

I am having a pagemethod to which i give a call from my JavaScript
say

Pagemethods.MyMethod(MyParameter, onsucess, onfailure);

In the Code behind, I have something like this:

[WebMethod]
public static void MyMethod(Param)
{
   try{
     //DoSomething..
   }
   catch(exception ex)
   {
      //Log the exception and rethrow
      throw new exception(ex.innerexception);
   }
}

Now the issue i face is :

Whenever i do get an exception,
i re throw the exception from code behind

But in the onfailure method, i just get a generic message saying that
"the server method MyMethod failed with following error: "

I don't seem to get the exception details and only that generic exception,

How can i get the exception details on JavaScript, in order to handle it according on the UI/JavaScript side.

I have verified, that it is not an issue with custom errors settings in web.config.

Can some one enlighten to me as to what is happening here?

PS: i have stepped through each and every line of code and the exception after being logged is rethrown with the proper exception details i.e. message.

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_失温 2024-07-29 17:46:45

据我了解，只要您

<customErrors mode="off" />

的 web.config 中包含该消息，该消息就会返回给客户端。你确定有这个设置吗？

要显示与错误相关的消息，您需要将函数名称作为页面方法调用的第三个参数：该函数可以简单如下：

function onfailure( result )
{
   alert( result.get_message() );
}

这就是我们所拥有的，并且工作正常

As far as I understand as long as you have

<customErrors mode="off" />

in your web.config, the message will be returned to client. Are you sure you have this setting ?

To display the message associated with error you need to have oassed the name of the function as the third parameter of the page method call : this function could be as simple as:

function onfailure( result )
{
   alert( result.get_message() );
}

That's what we have and it works OK

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呆° 2024-07-29 17:46:45

在 web.config 的部分设置后，尝试这些函数来获取所有PageMethod 的 onfailure 的异常详细信息：

function onfailure(error) {                
    alert("Error: " + error.get_message() + "; " + 
        "Stack Trace: " + error.get_stackTrace() + "; " + 
        "Status Code: " + error.get_statusCode() + "; " + 
        "Exception Type: " + error.get_exceptionType() + "; " + 
        "Timed Out: " + error.get_timedOut());
}

我发现错误的状态代码比错误消息本身更有帮助。

After you have set <customErrors mode="off" /> in the <system.web> section of the web.config, try these functions to get all of the exception details from the PageMethod's onfailure:

function onfailure(error) {                
    alert("Error: " + error.get_message() + "; " + 
        "Stack Trace: " + error.get_stackTrace() + "; " + 
        "Status Code: " + error.get_statusCode() + "; " + 
        "Exception Type: " + error.get_exceptionType() + "; " + 
        "Timed Out: " + error.get_timedOut());
}

I've found the error's status code to be far more helpful than the error message itself.

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