Elmah将消息添加到通过调用Raise(e)记录的错误

Question

我对如何使用ELMAH以编程方式记录的错误添加消息感到困惑.

例如:

public ActionResult DoSomething(int id)
{
    try { ... }

    catch (Exception e)
    {
        // I want to include the 'id' param value here, and maybe some
        // other stuff, but how?
        ErrorSignal.FromCurrentContext().Raise(e);
    }
}

看来Elmah所能做的就是记录原始异常,我怎样才能记录自己的调试信息？

Answer 1

您可以抛出一个新的Exception设置原始内容作为内部异常,ELMAH将记录两者的消息:

catch(Exception e)
{
    Exception ex = new Exception("ID = 1", e);
    ErrorSignal.FromCurrentContext().Raise(ex);
}

将会呈现

System.Exception: ID = 1 ---> System.NullReferenceException: Object reference not set to an instance of an object.