Help forming error handling email! - KeithP

I have an orchestration that is set up to receives routed error
messages from my other biztalk applications.  In this error handling
orchestration, I receive the routed error as an xmldocument
(msg_Error), then create an email message (msg_Email) in an assignment
shape using the code I've copied at the bottom of this post.  My
problem is that sometimes I encounter an error that does not seem to
have a value for the ReceivePortName or the InbountTransportLocation -
this causes my error handling to blow up in the expression shape.  Is
there a way that I can test for these values and only try to access
them if they exist?  I thought of using an custom class library to to
put the stringbuilder together inside a try/catch - but I don't know
how to pass the error message (msg_Error) to the class with the
ErrorReport values in tact.  Can anyone help????


EXPRESSION SHAPE CODE:
stMsgBody = new System.Text.StringBuilder();
stMsgBody.AppendLine("");
stMsgBody.AppendLine("Desc:" + msg_Error(ErrorReport.Description));
stMsgBody.AppendLine("Type:" + msg_Error(ErrorReport.ErrorType) + "<br/
stMsgBody.AppendLine("Receive Port Name:" +
msg_Error(ErrorReport.ReceivePortName) + "<br/>");
stMsgBody.AppendLine("Receive Location:" +
msg_Error(ErrorReport.InboundTransportLocation));
stMsgBody.AppendLine("");

msg_Email.EmailBody = new
DOC.BizTalk.CustomComponents.XlangCustomFormatters.RawString(stMsgBody.ToString());
msg_Email.EmailBody(Microsoft.XLANGs.BaseTypes.ContentType) = "text/
html";

msg_Email.OriginalMessage = msg_Error;
msg_Email(SMTP.Subject) = "BizTalk Routed Error Notification";
msg_Email(SMTP.EmailBodyFileCharset) = "UTF-8";
msg_Email(SMTP.MessagePartsAttachments) = 2;

Help forming error handling email! - RichardSerote

In similar situations I've had a helper component that took in the
distinguished field as a (object) parameter, and the component checks for
empty or null values before returning a formatted response.
--
Richard Seroter
http://seroter.wordpress.com

Help forming error handling email! - KeithP

that sounds like what I would like to do, but I'm not sure how to pass
field you are interested in as a seperate parameter or is there a way
to pass an object that contains them all?

Thanks so much for your help.

Help forming error handling email! - RichardSerote

In my case, I just created a static method like so ...

public static string ExtractValue(object distValue)
{
//check for null, or empty
}

and called it for each item that I needed handled.  Not sure how I'd pass
the whole distinguished field property bag in, unless you want your operation
to accept the XLangMessage itself ...
--
Richard Seroter
http://seroter.wordpress.com

Help forming error handling email! - Jan Eliasen

in your expression shape:
exists <property> <message>
it returns a boolean describing whether the property exists.

--
eliasen, representing himself and not the company he works for.

Private blog: http://blog.eliasen.dk

Private email: jan@eliasen.dk