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Using Microsoft .NET in WebSphere Message Broker V8: Part 3: Integrating with Microsoft Excel

Ben Thompson (bthomps@uk.ibm.com), Consulting IT Specialist, IBM
Author photo
Ben Thompson is a Consulting IT Specialist working on the WebSphere Message Broker development team at the IBM Hursley Software Lab in the UK. He is currently working on the design and implementation of .NET support in Message Broker. In the past, he has worked for IBM Software Services for WebSphere designing and implementing WebSphere solutions for IBM customers worldwide. You can contact Ben at bthomps@uk.ibm.com.
(An IBM developerWorks Contributing Author)
Matthew Golby-Kirk (mgk@uk.ibm.com), Software Developer, IBM
Matthew Golby-Kirk photo
Matthew Golby-Kirk is a software developer working on the WebSphere Message Broker development team at the IBM Hursley Software Lab in the UK. He works on the design and implementation of the HTTP and Web services support, along with the ESQL language run time in WebSphere Message Broker. You can contact Matthew at mgk@uk.ibm.com.

Summary:  This series of four tutorials demonstrates the new support for Microsoft .NET in WebSphere Message Broker V8. Part 3 describes integration with Microsoft Excel. Readers should be familiar with either Microsoft .NET or WebSphere Message Broker but need not be familiar with both.

View more content in this series

Date:  01 Feb 2012
Level:  Intermediate

Comments:  

Testing the scenario

  1. If you have not yet done so, you can download the zip file at the bottom of the article. The zip file contains the spreadsheet file (Test.xlsx) that the message flow opens and updates, and an xml input file (TestData.xml) that you can use to test the flow. Extract the zip file to the directory C:\student\DOTNET\lab_msexcel. Here is the directory, which by this stage of the tutorial should also contain the subdirectories shown below:

    Test Directory
  2. Before running data through the scenario, open the spreadsheet template file Test.xlsx. When successfully executed, the scenario adds data into this spreadsheet. The tutorial was written this way, rather than creating the spreadsheet from scratch, to simplify the C# code. The template spreadsheet should look like this:

    Spreadsheet Template
  3. Close Microsoft Excel, which must be done before running the scenario to allow the message flow to open the file.
  4. Copy the xml file TestData.xml into the input subdirectory C:\student\DOTNET\lab_msexcel\input. The XML data in the provided input file is shown below:

    Listing 9. xml file test data: TestData.xml
    
    <ns1:ElementA xmlns:ns1="www.ibm.com/one">
     <ns2:ElementB xmlns:ns2="www.ibm.com/two">
      <ElementC AttrD="This is an attribute value">
       This element has no namespace and contains this string value
      </ElementC>
     </ns2:ElementB>
    </ns1:ElementA>
    

  5. After a few seconds, the message flow reads the input data and copies it into an output file of the same name, which is then saved into the output directory C:\student\DOTNET\lab_msexcel\output. Check that the output file has successfully appeared, and then navigate to the directory C:\student\DOTNET\lab_msexcel. The spreadsheet should have a recent Date modified property. Open Test.xlsx using Microsoft Excel. The columns should be populated with information from the logical message tree, which represents the xml file data as it passes through the message flow:

    Output Spreadsheet

You have completed Part 3 of the tutorial, and learned how to combine the WebSphere Message Broker .NETCompute node with C# code and the Open XML SDK V2 API to access Microsoft Excel. You can continue on to the download links, resource links, and author information by clicking Next below, or you can go on to Part 4 of the tutorial.

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