STORED PROCEDURES in visual C#.net

Generation barcode data matrix in visual C#.net STORED PROCEDURES

As you can see from Figure 3-19, overriding targets has the same behavior as overriding properties. When a target is defined, it will take precedence over any previously defined target with the same name. Now, you are not likely to override a property or target within the same file, so you are probably wondering why we are discussing this. The reason is that you may run into this situation when your project imports other MSBuild project files. Let s talk about what happens when you import another MSBuild project file into yours. When MSBuild starts processing a project file, it will do this in a node-by-node manner, from the top of your project file to the bottom. When an Import element is encountered, these steps then take place: 1. The working directory is changed to that of the imported project file. 2. Project element attributes are processed. 3. Project element nodes are processed. 4. The working directory returns to importing the previous value. The first step is to change the working directory to that of the imported project file assuming that it has a different working directory from the current project file, that is. This is necessary to properly handle any relatively defined import statements, or to resolve locations of assemblies when the UsingTask element is inserted, within that project file. This change is not used for item declarations. Let s move on to the following step. The next thing after that is for the Project element attributes to be processed. Possible attributes are DefaultTargets and InitialTargets. If a value is already assigned to DefaultTargets, then this is ignored; otherwise, it becomes the value of DefaultTargets. If the InitialTargets attribute is present, then that list of targets will be appended to the current list of InitialTargets. As mentioned, the DefaultTargets attribute is a list of targets to execute if no target is specified; this can be valued from only one project file. The InitialTargets attribute is a list of targets to be executed before any other targets. The value from InitialTargets can be from many different source project files. Following the Project element attribute processing, the child nodes are processed. The same processing is performed if those nodes were immediate children in the importing file. Finally, for the last step after processing the child nodes, the directory is changed to its previous value, and processing on the original file continues. When you import a project file, it is as if you actually took that file and injected its contents inside of the file that was importing it. This is true with the exception of the Project element itself, which was previously discussed, and with issues related to the working directory, which also were previously discussed. How does this affect reusing elements across project files

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Summary

This recipe s solution described how to configure a receive port to perform inbound mapping transformation. Remember that when you re using a receive port, the inbound message must be in an XML format. If inbound mapping is configured, the message must also conform to the schema of that specified in the inbound format of the map in question. If the message does not match, the message will fail in the map, and the message interchange will be marked for exception processing. Another key concept to keep in mind when configuring receive port maps is that more than one map can be specified on a receive port. Multiple XML schemas can be accepted by the receive port; it is not tied to one specific schema. For example, if you have three purchase order document formats arriving from external entities, you could transform each format to a common (canonical) format via port maps on the receive port. This process is commonly referred to as document normalization. In this instance, you could have three maps to support each format and a single receive port to satisfy the solution. This scenario is demonstrated in Figure 4 4. A key consideration when applying receive port maps is how you plan to handle exceptions, such as an XML message that does not conform to a map, invalid XML received, and data enrichment required during or before transformation. All of these exceptions could be handled within a port map or receive location, or with downstream BizTalk orchestration functionality.