System.Web.HttpCompileException extends System.Web.HttpException, which
extends System.Runtime.InteropServices.ExternalException. Neither
HttpCompileException nor HttpException set their Message property. The only
constructor for HttpCompileException runs through the default constructors
for the two base types mentioned above, so the first time a Message setter
is hit is the default constructor for ExternalException, which sets it to
the text you see in the exception details.
HTH,
Nicole
"Plat" <Plat@discussions.microsoft.com> wrote in message
news:763EC775-D392-4FCE-8E15-3D22D34A091A@microsoft.com...[color=blue]
> Very cool. You're my hero! :)
>
> I was able to cast Server.GetLastError().GetBaseException() to a
> System.Web.HttpCompileException in these cases, and pull the error details
> from it, as you suggested (MSDN's doc examples were very helpful here).
> Thanks for the help!
>
> Out of curiosity, what's the reason why we see the "External component has
> thrown an exception" error by default instead of something more detailed?
>
> Thanks again.
>
>
> "Nicole Calinoiu" wrote:
>[color=green]
>> If you cast the Exception to an HttpCompileException (assuming the cast
>> is
>> possible <g>), it should be possible to read the error details (including
>> line numbers) from the Errors collection of the CompilerResults object
>> exposed via the exception's Results property.
>>
>> HTH,
>> Nicole
>>
>>
>>
>> "Plat" <Plat@discussions.microsoft.com> wrote in message
>> news:C7DB2043-0892-469D-8945-B3FC6AC4508E@microsoft.com...[color=darkred]
>> > I've Googled this for a while, to no avail. Hopefully someone can help
>> > me.
>> > Maybe I'm using the wrong terminology.
>> >
>> > Here's the scoop! Let's say I've got a simple *.ASPX page that has a
>> > syntax
>> > error. For example, broken.aspx might only contain the following line
>> > of
>> > code:
>> >
>> > <% Dim x as %>
>> >
>> > When I visit this page from my Web browser, I see all the helpful
>> > ASP.NET
>> > Server Error information, including:
>> >
>> > Compilation Error
>> > Compiler Error Message: BC30182: Type expected.
>> > Source Error: Line 1: <% Dim x as %>
>> > Source File: c:\inetpub\mysite\broken.aspx
>> >
>> > This is great information; exactly what I need to troubleshoot the
>> > problem!
>> > However on my site, I trap the Exception in my Global.asax.vb's
>> > Application_Error handler so that I'm notified when an error occurs.
>> > Usually
>> > I'm able to cull useful information from the Exception, but in the
>> > event
>> > of a
>> > Compilation Error, here's all I can see:
>> >
>> > System.Web.HttpException: External component has thrown an
>> > exception.
>> > ---> System.Web.HttpCompileException: External component has thrown an
>> > exception.
>> > at
>> > System.Web.Compilation.BaseCompiler.ThrowIfCompile rErrors(CompilerResults
>> > results, CodeDomProvider codeProvider, CodeCompileUnit sourceData,
>> > String
>> > sourceFile, String sourceString)
>> > at System.Web.Compilation.BaseCompiler.GetCompiledTyp e()
>> > at System.Web.UI.PageParser.CompileIntoType()
>> > at
>> > System.Web.UI.TemplateParser.GetParserCacheItemThr oughCompilation()
>> > --- End of inner exception stack trace ---
>> > at System.Web.UI.TemplateParser.GetParserCacheItemInt ernal(Boolean
>> > fCreateIfNotFound)
>> > at System.Web.UI.TemplateParser.GetParserCacheItemWit hNewConfigPath()
>> > at System.Web.UI.TemplateParser.GetParserCacheItem()
>> > at
>> > System.Web.UI.TemplateControlParser.CompileAndGetP arserCacheItem(String
>> > virtualPath, String inputFile, HttpContext context)
>> > at System.Web.UI.TemplateControlParser.GetCompiledIns tance(String
>> > virtualPath, String inputFile, HttpContext context)
>> > at System.Web.UI.PageParser.GetCompiledPageInstanceIn ternal(String
>> > virtualPath, String inputFile, HttpContext context)
>> > at System.Web.UI.PageHandlerFactory.GetHandler(HttpCo ntext context,
>> > String requestType, String url, String path)
>> > at System.Web.HttpApplication.MapHttpHandler(HttpCont ext context,
>> > String
>> > requestType, String path, String pathTranslated, Boolean useAppConfig)
>> > at
>> > System.Web.MapHandlerExecutionStep.System.Web.Http Application+IExecutionStep.Execute()
>> > at System.Web.HttpApplication.ExecuteStep(IExecutionS tep step,
>> > Boolean&
>> > completedSynchronously)
>> >
>> > The above is the result of "Server.GetLastError().ToString()" in my
>> > Application_Error code.
>> >
>> > So now I'm wondering, how can I *programmatically* learn the same
>> > information shown in the first example output, when Application_Error
>> > event
>> > handler executes?
>> >
>> > I'm using the .NET Framework 1.1 SP 1.
>> >
>> > Thanks for your help![/color]
>>
>>
>>
>>[/color][/color]
