How to automate mail merge to Word using OLE and ODBC

Summary

This article demonstrates how to use OLE automation to create a mail merge in Microsoft Office Word 2003 using data from a Visual FoxPro (VFP) for Windows table.

More Information

Below is the Visual FoxPro for Windows code using the Word.Application object model that performs the mail merge using an ODBC data source to an existing Visual FoxPro table. This code can use an existing data source name (DSN), created in the ODBC Driver Manager, or it can create one on the fly utilizing an API call to add and use the DSN. In the example below, "Visual FoxPro Tables" is the DSN created in the ODBC Driver Manager and points to the \Samples\Data folder in the VFP home folder. These paths will most likely have to be changed to reflect the users' paths.


Note This code was tested with the Service release-1 (SR-1) for Word 97 and Microsoft Office Word 2003. Using prior versions of Word 97 causes a Type Mismatch and other OLE errors.


Create a program and enter the following code:
  ***/ Begin program code /***
* Code to create a new data source to a VFP table.
*
* Use the Declare DLL function to prototype the
* SQLConfigDataSource function.
* Using SQLConfigDataSource prevents having to go into
* the ODBC Driver Manager and create the DSN.

***


IF VAL(SUBSTR(VERSION(4),2,1))>7
lthemes=_screen.Themes
_screen.Themes=.f.
ENDIF

DECLARE Integer SQLConfigDataSource in odbccp32.dll Integer, ;
Integer, String, String

***
* Create a string containing the settings appropriate to the driver.
* The following is an example for the Microsoft VFP ODBC driver
* accessing the Customer.dbf file.
***

*** Change the path below to point to the Customer table ***
*** in the \Samples\Data folder. ***
settings="DSN=visual foxpro tables"+chr(0)+;
"Description=VFP ODBC Driver"+chr(0)+;
"SourceDB=e:\vfp7\samples\data"+chr(0)+;
"SourceType=DBF"
=SQLConfigDataSource(0,1,"Microsoft Visual FoxPro Driver",settings)

* NOTE: Ensure there are no spaces on either side of the equal sign (=).

ON ERROR DO errhand WITH ERROR(), MESSAGE(), MESSAGE(1), PROGRAM( ),
LINENO( ) && Trap OLE & other errors.

* Initialize variables passed to Word to create form letter.
intro1="Congratulations! You are one of our best customers since you have ;
purchased $"
intro2=" each month from us. "
intro3="As a result, your maximum order amount has been increased by ;
$2500.00. If you have any questions, please feel free to contact us."

oWord = CREATEOBJECT("Word.Application")
WITH oWord
* Assign values to variables
dsname="e:\VFP7\SAMPLES\DATA\customer.DBF"
wformat=0
wconfirmconv=0
wreadonly=0
wlinktosource=0
waddtofilelist=0
wpassworddoc=""
wpasswordtemp=""
wrevert=0
wprotectdoc=""
wprotecttemp=""
wconn="DSN=visual foxpro tables;uid=;pwd=;"+;
"sourcedb=e:\vfp7\samples\data;sourcetype=dbf"+;
"exclusive=no;backgroundfetch=yes;collate=machine;"
wsqlstatement="SELECT contact,company,title,address,city,;
postalcode,STR(maxordamt,12,2) as maxordamt FROM customer ;
WHERE (customer.maxordamt>$100000)"

.Visible=.T. && Make Word visible.
.WindowState = 2 && Minimize Word.


.Documents.Add && Add new document.
.Selection.InsertParagraphAfter

.ActiveDocument.MailMerge.OpenDataSource;
(dsname,wformat,wconfirmconv,wreadonly,wlinktosource,;
waddtofilelist,wpassworddoc,wpasswordtemp,wrevert,;
wprotectdoc,wprotecttemp,wconn,wsqlstatement)
.ActiveDocument.MailMerge.EditMainDocument
.Selection.InsertDateTime("dddd, MMMM dd, yyyy", 1)
.Selection.MoveRight
.Selection.InsertParagraphAfter
.Selection.MoveDown
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"contact")
.Selection.InsertParagraphAfter
.Selection.MoveDown
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"company")
.Selection.InsertParagraphAfter
.Selection.MoveDown
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"title")
.Selection.InsertParagraphAfter
.Selection.MoveDown
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"address")
.Selection.InsertAfter(", ")
.Selection.MoveRight
.ActiveDocument.MailMerge.Fields.Add(oWord.Selection.Range,"city")
.Selection.InsertAfter(" ")
.Selection.MoveRight
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"postalcode")
.Selection.MoveRight
.Selection.InsertParagraphAfter
.Selection.InsertParagraphAfter
.Selection.InsertAfter("Dear ")
.Selection.MoveRight
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"contact")
.Selection.MoveRight
.Selection.InsertAfter(":")
.Selection.MoveRight
.Selection.InsertParagraphAfter
.Selection.InsertParagraphAfter
.Selection.MoveDown
.Selection.InsertAfter(intro1)
.Selection.MoveRight
.ActiveDocument.MailMerge.Fields.Add;
(oWord.Selection.Range,"maxordamt")
.Selection.MoveRight
.Selection.InsertAfter(intro2)
.Selection.MoveRight
.Selection.InsertAfter(intro3)
.Selection.MoveRight
.Selection.InsertParagraphAfter
.Selection.InsertParagraphAfter
.Selection.MoveDown
.Selection.InsertAfter("Thank you,")
.Selection.MoveRight
.Selection.InsertParagraphAfter
.Selection.InsertParagraphAfter
.Selection.MoveDown
.Selection.Fields.Add(oWord.Selection.Range,-1,"author")
.ActiveDocument.MailMerge.Destination = 0 && new document.
.ActiveDocument.MailMerge.Execute && Run the merge.
nanswer = MESSAGEBOX("Would you like to view the finished ;
document?",36,"Switch to Word")
DO CASE
CASE nanswer = 6
.ActiveWindow.View.Type = 3 && Page layout view.
.Visible = .T.
.Application.Activate && Bring Word forward.
.WindowState = 0 && Word in normal state.
=INKEY(5) && Wait 5 seconds then bring VFP back.
.WindowState = 2 && Then minimize Word.
ENDCASE
nanswer = MESSAGEBOX("Print the document?",36,;
"Print the merged document.")
DO CASE
CASE nanswer = 6 && Yes
.ActiveDocument.PrintOut && Print the merged form letter.
ENDCASE

nanswer = MESSAGEBOX("Save the document?",36,;
"Enter the name to save the merged document.")
DO CASE
CASE nanswer = 6 && Yes
cbaddoc=SPACE(25)
DO WHILE .T.
DEFINE WINDOW getname FROM 1,1 TO 15,60 ;
FONT 'COURIER NEW',10 FLOAT GROW ZOOM
ACTIVATE WINDOW getname
cdoc=SPACE(25)
mquit = SPACE(1)
IF !EMPTY(cbaddoc)
@2,1 SAY "Existing file name: "+cbaddoc COLOR R+/w
ENDIF
@4,1 SAY "Enter a name for the Word document."
@5,1 GET cdoc color b/w VALID emptyChk(cdoc)
@7,25 GET mquit FUNCTION '*T Save' SIZE 2,10
READ CYCLE
CLEAR WINDOW getname
cdoc=ALLTRIM(cdoc)
cpath= .Options.DefaultFilePath(0) && Get Word's
&& default document path.
IF FILE(cpath+"\"+cdoc+".doc")
WAIT WINDOW "Document already exists! Enter another ;
file name." TIME 1
cbaddoc=cdoc
LOOP
ELSE
.ActiveDocument.SaveAs(cdoc)
ENDIF
.Documents.Close(0)
.Application.Quit
EXIT
ENDDO
CASE nanswer = 7 && No
.Documents.Close(0)
.Application.Quit
ENDCASE
ENDWITH

ON ERROR && Restore system error handler.
IF VAL(SUBSTR(VERSION(4),2,1))>7
_screen.Themes=lthemes
endif

PROCEDURE emptychk
PARAMETER pcdoc
IF !EMPTY(pcdoc)
RETURN .T.
ELSE
WAIT WINDOW "Enter a name for the Word Document"
RETURN 0
ENDIF

PROCEDURE errhand
PARAMETER merror, mess, mess1, mprog, mlineno
CLEAR
IF merror=1426
mlineno=LTRIM(STR(LINENO()))
merror=LTRIM(STR(merror))
=MESSAGEBOX("You have an OLE error. Usually this is caused by
quitting Word or canceling out of a dialog box in Word. "+CHR(13)+;
"The error message is "+mess)
ELSE
mlineno=LTRIM(STR(LINENO()))
merror=LTRIM(STR(merror))
=MESSAGEBOX("An error occured on line "+mlineno+;
". The error message is "+mess+" The error number is "+merror)
ENDIF
ON ERROR
RETURN
***/ End program code /***

References

For additional information about how to obtain Word for Windows 97 Service release 1 (SR-1), click the following article number to view the article in the Microsoft Knowledge Base:

172475 How to obtain and install MS Office 97 SR-1

Microsoft Visual Basic for Applications Help (Word '97); search on "OLE"
Propriétés

ID d'article : 181926 - Dernière mise à jour : 20 juin 2008 - Révision : 1

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