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Copyright © 2008-2016 Paula DiTallo

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January 2008 Entries


Why do I get a "load file or assembly" error?

If you are getting an error when attempting to access your ASP .NET application that looks like: Parser Error Message: Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad36... or one of its dependencies. The system cannot find the file specified. You are probably missing AJAX v1.0 ......

What is a "splitter pattern" in BizTalk?

Overall, when an incoming XML message contains multiple potential single messages, the extraction process needed to separate the messages out is thought of as "splitting " or "shredding" the message. The splitter pattern then, is a reliable, uniform way to address splitting/shredding throughout your applications. An example for why your application might need to split messages would be something like a single input XML message with multple pension fund benefits for multiple persons which require ......

What is a "jar" file?

Simply, JAR stands for Java ARchive. It's like a ZIP (Windows) or TAR (Unix/Linux) file with multiple other files contained within it. So, in the case of the *.jar files--what you're compressing are classes that your application/framework needs. ...now...that was the very short version... if you're looking for a much richer explanation... jump over to Behrouz Fallahi's page... (http://www.devx.com/tips/T... ......

What is "Hungarian Notation" ?

During the heyday of Microsoft's Visual C++ development (read: late 80's - early 90's) this naming convention was talked about a lot. In essence the naming convention prefixes each variable name with letters that denote the data type + a shortened description name -- with each word of the description beginning with a capital letter. Let's say you needed to create a variable that would contain the string value of a book title. You might choose a name like: strBookTitle or maybe just strTitle. Today, ......

Why do I get: System.Byte[] for a String?

There are several circumstances which will display this output (or exception in some cases) in .NET, however the primary reason is because there is a mismatch between the expected format and the casting taking place in your application. An example would be attributes which are bound to LDAP that do not readily cast to string. Here is a quick solution (that has its roots in vc++) for successfully casting this datatype to string: byte[] myByteArray = (byte[])result.Properties["... ......

Why can't I test my web service anymore?

If you are getting the message: The test form is only available for requests from the local machine it is because you are probably testing the web service from the remote box you just migrated the web service to! The quick solution to that is to follow the advice of Juan Ignacio Gelos... (http://geekswithblogs.net/... ...and do the following: 1. Edit the web.config file for your web service application. Add or Edit: <configuration> <system.web> <webServices> ......

Mining Stored Procedures to Develop Business Rules

I am currently working on a manuscript about business rule engines; their purpose in large scale enterprise integration projects; their role in SOA architectures--and their untapped capability in enriching data warehouse-based intelligence delivery. Today, I am outlining the criteria for comparing two divergent products: TIBCO's iProcess Decisions (part of the BPM product suite) and Microsoft's Business Rule Engine (BRE) (installed with BizTalk Server). For the nuts and bolts of this first comparison, ......