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The Way We Word: Merge That Mail Automatically!

Microsoft
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In last month's column, I went through the steps to create a Microsoft Word mail merge document using iSeries-based data. This month, I'll evolve that somewhat to create an automated, interactive process that users can execute so that they can get what they want by simply entering a few values.

As an example, I'll use the production of mailing labels from a customer master file. This seems to happen a lot where I work. We need labels for a catalog mailing, a flyer, or a given sales representative. Then comes the hard part: Using mail merge with an external data source is complicated enough that we wouldn't want to ask a user of average skills to try to do it. So we do it for them.

IT people like to provide a high level of customer service, but doing so often means we saddle ourselves with things that seem, well, inappropriate for us to be doing. We should be designing, configuring, and installing systems, not creating mailing labels.

Fortunately, it's easy enough in VBA to ask the user some questions, set a criteria, and execute a query.

I'll begin at the beginning. (I could begin from some other point, but that would be way too confusing). For this example, you have to access (or create) an ODBC data source, create a merge document, and insert VBA code.

Before Our Summer Break, We Covered...

To create an ODBC data source in the Windows environment, you must open the control panel (for 2000/XP it is necessary to open the Administrative Tools applet) and then open the ODBC data sources applet. When you open the ODBC data sources administrator, choose either the User DSN tab (to create a data source available only to the current user of the Windows machine) or the System DSN tab (to create a data source available to all users of the Windows machine). Click the Add button, choose the Client Access driver, and fill in the values as needed on the General and Server tabs.

For specific examples with illustrations, see last month's column. It is also possible to create the DSN in code, and I'll cover that in a later column.

With a DSN in place, you can create as many merge documents as you want to access the data it provides.

Starting Afresh: Setting Up a Document

In this example, you'll create a document to print mailing labels from the data source. As with last month, you'll start a new document and then use the Merge Wizard to help you set things up. So, start a new document and name it CustomerLabels.doc

Click on Tools and choose Mail Merge to start the Mail Merge Wizard. Note that this may vary depending on your version of Word. In 2002, you choose Letters/Mailings/Mail Merge from the tools menu. When the wizard comes up, click the Create button and choose Mailing Labels from the drop down list that the button presents. You will be prompted to either use the active document window or create a new main document. Choose the active document window.

Next, click the Get Data button and choose Create Data Source from the drop-down list. This brings up Word's Create Data Source dialog. In the bottom left corner is a button labeled MS Query. Click it. You'll use the MS Query tool (free with Office) to set up your document's data source.

When MS Query opens, it first asks you to choose a data source. This is where you pick the data source that you created earlier. Said data source points to a library on your iSeries, and that library contains the tables you want to use.

The next dialog is the Choose Columns dialog, which presents a list of tables. Each table can be expanded to show its fields. In this example, I've chosen the customer master table and picked the fields CNME, CAD1, CAD2, CAD3, CSTE, and CZIP, which you may have guessed contain the customer's name, address, city, state, and ZIP code. Please see Figure 1.

http://www.mcpressonline.com/articles/images/2002/mergetoword2V400.png

Figure 1: From this dialog, you choose columns for the merge.

Pressing Next takes you to the Filter Data dialog. Choose to include records whose ZIP code starts with 85253 (this way, you'll catch both the older 5-digit and newer ZIP+4 entries). Check Figure 2 for a look.

http://www.mcpressonline.com/articles/images/2002/mergetoword2V401.png

Figure 2: Here, you select records based on the ZIP code.

Having selected by ZIP code, you can also sort if you want. In Figure 3, I've chosen to sort by name. Sorting isn't necessary; you can include unsorted data or sort on multiple fields. In other words, make the data fit your need of the moment.

http://www.mcpressonline.com/articles/images/2002/mergetoword2V402.png

Figure 3: Sort it, don't sort it...whatevah!

When you press the Next button, you come to the Finish Dialog. In the upper right corner is a Save Query button. Push it and name the query MailingLabels, using the default extension of .dqy.

Then, click Finish to return your data to Microsoft Word. When you've done that, you'll be asked to "Finish setting up your document." This brings you to the Label Options dialog (Figure 4). Choose the label product and type, and click OK to go on to the Create Labels wizard (Figure 5).

http://www.mcpressonline.com/articles/images/2002/mergetoword2V403.png

Figure 4: Choose a label type.

In the Create Labels wizard, use the drop-down list to insert your merge fields into the sample label shown. Note that you've put the name, address lines, city, state, and ZIP into your label. Pressing OK will then set up the main document for labels and return us to the Mail Merge wizard (Figure 6).

http://www.mcpressonline.com/articles/images/2002/mergetoword2V404.png

Figure 5: Place fields on the sample label.

You've now completed your main document (see Figure 6 for a look). Note some attributes as reported by the Mail Merge wizard: The document type, the data source, and the merge options are all properties that belong to objects you'll be working with. Using these objects in code, you can affect things like your data source and document options.

http://www.mcpressonline.com/articles/images/2002/mergetoword2V405.png

Figure 6: The Merge wizard reports the settings for your document.

What you've done is set up a document ready to be merged. In Figure 7, you'll see a part of the document with the merge fields as placed by the wizard.

http://www.mcpressonline.com/articles/images/2002/mergetoword2V406.png

Figure 7: Here's the resulting mailing label document.

Now, you could just press Merge to New Document, get a new document with filled-out labels, and get on with your life.

But I won't let you.

The whole point is to start automating this process. Now that you've built the road, it's time for a car. Well, maybe a bicycle...

So start the Visual Basic Editor (press Alt+F11 or choose Visual Basic Editor from Tools/Merge) and add a module to your CustomerLabels project. By default, the module will be Module1, but rename it to AutoMerge.

In the AutoMerge module, create the following subroutine:

Sub GetZipandMerge()
Dim sZipCode As String
Dim bZipError As Boolean

sZipCode = InputBox("Enter the zip code for labels:", "MailMerge")
If sZipCode = "" Then Exit Sub

Do
   bZipError = False
   If Not IsNumeric(sZipCode) Then
      MsgBox "Zip Code must be a number!", vbOKOnly
      bZipError = True
      sZipCode = InputBox("Enter the zip code for labels:", "MailMerge")
      If sZipCode = "" Then Exit Sub
   End If
Loop While bZipError

On Error GoTo errorMain

ActiveDocument.MailMerge.DataSource.QueryString = _
  "SELECT RCML01.CNME, RCML01.CAD1, RCML01.CAD2, RCML01.CAD3, RCML01.CSTE, RCML01.CZIP " _
& "FROM ANTIGUA1.BPCS405CDF.RCML01 RCML01 " _
& "WHERE (RCML01.CZIP LIKE '" & sZipCode & "%') "
    

With ActiveDocument.MailMerge
    .Destination = wdSendToNewDocument
    .Execute
End With

Exit Sub

errorMain:
  MsgBox Err.Description & "  Perhaps you entered an invalid zip code?", vbOKOnly

End Sub


First, the variables: sZipCode is a string variable to contain the ZIP code you want to use for your query. Then, bZipError is a Boolean used to do some rudimentary error checking. If you read the code, you'll notice that the inputbox method gets a ZIP code from the user, and then there's some simple error checking to make sure the ZIP code is really a number.

Once you're satisfied that the value the user has given you is actually a ZIP code, you go on. First, you set yourself up to bail if an error occurs:

On Error GoTo errorMain


The errorMain label contains the following code:

errorMain:
  MsgBox Err.Description & "  Perhaps you entered an invalid zip code?", vbOKOnly


If an error occurs, you jump down here, display the description with the messagebox method, and add on the question "Perhaps you entered an invalid zip code?" In the code, you must include the space in front of the word "Perhaps" so that the resulting message looks properly formed. You can do this with confidence because you can be pretty sure that the only error you'll get is no records found.

Earlier, when you saved your query as MailingLabels.dqy, you associated it with your document. Now, all you do is change the SQL statement used by MailingLabels.dqy to return the value you want:

ActiveDocument.MailMerge.DataSource.QueryString = _
  "SELECT RCML01.CNME, RCML01.CAD1, RCML01.CAD2, RCML01.CAD3, RCML01.CSTE, RCML01.CZIP " _
& "FROM ANTIGUA1.BPCS405CDF.RCML01 RCML01 " _
& "WHERE (RCML01.CZIP LIKE '" & sZipCode & "%') "


Note that the field selection doesn't change; you just adjust the WHERE clause of the SQL statement, building it from the SELECT and FROM clauses and appending your ZIP code value. Note that you use LIKE and the % operator to indicate that you are looking for fields that start with the value in sZipCode. If you refer back to Figure 2, you'll see how you did this in the query wizard.

This, by the way, is the statement that will result in an error if the ZIP code provided doesn't return a recordset. That's why you establish your error handling right ahead of this statement.

With the query set up, you can execute the merge:

With ActiveDocument.MailMerge
    .Destination = wdSendToNewDocument
    .Execute
End With


This is where you control many attributes of the mail merge. For example, you could set the destination attribute to one of the following, with obvious results:

    .Destination = wdSendToEmail
    .Destination = wdSendToPrinter
    .Destination = wdSendToFax


So, you could fax it, email it, print it, right out of your macro. Kinda lights up the old idea bulb, doesn't it?

Next Steps

So you've successfully built a merge document and, to some degree, automated it. In my next column, I'll show you how to enhance your level of automation with a user form, giving you the opportunity to create a more complicated WHERE clause and a more independent application.

Chris Devous is the Director of IT Systems Development at The Antigua Group, Inc., a Peoria, Arizona, garment manufacturer. Chris has been in IT since '82 and lives Arizona with his wife, three children, a bird, two dogs, a cat, and various marine life forms. He can be reached by email at This email address is being protected from spambots. You need JavaScript enabled to view it..

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