Error when calling webservice with wrong url

elwin68

Hello,

I have a problem when calling a webservice out off NAV 2009 SP1.
The following lines are used.

XmlHttpLaut.open('POST', VarURL, FALSE);
XmlHttpLaut.setRequestHeader('Content-type','text/xml; charset=utf-16');
XmlHttpLaut.setRequestHeader('SOAPAction', VarSoapaction);
XmlHttpLaut.setRequestHeader('Timeout','100000');
XmlHttpLaut.send(XmlDocLaut);

VarURL is a variable with the url of the webservice.
When VarURL has the correct url everything is working well.
When VarURL has the wrong url an error occures for the method Open.

Is it possible to catch this error in NAV so I can generate an error myself?

Thanks in advance.

ufuk

Why do you want to catch error in Navision? If you catch the exception (outside Navision) then you can simply send this Exception message to NAV, format it as you want and return back.

elwin68

Hello ufuk,

The following error occures which is not clear for a user.

This message is for C/AL programmers.

An exeption occured with the method Open.
....
....

So it would be nice I can catch this error when calling the XmlHttpLaut.open method.

And I have no code outside NAV.

ufuk

In Navision you won't have additional information to handle this Exception. So it doesn't matter if you implement error handling in Navision or on an external platform. (In fact it will be more difficult.)
Why don't you use switch statements based on Error Codes that display user friendly messages?

elwin68

Thanks for your answer.

I'm quite new in calling webservices out of NAV.
Is there an example so I can see how this works?

Thanks in advance.

ufuk

If the error raises from Navision, Exception.Message already includes Navision error.
If not, you can play with the InnerException and Source properties of the Exception class.

kriki

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