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Old 12-04-2013, 11:31 AM
rossjp rossjp is offline Use formula in "Age" field to calculate age Windows XP Use formula in "Age" field to calculate age Office 2007
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In a word 2007 document that I use as a form Ihave a DOB field, A current date field and an Age field. I need a formula in the Age field to calculate a person's age based on the other two field dates. Any help appreciated?
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Old 12-04-2013, 01:07 PM
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To see how to do this and just about everything else you might want to do with dates in Word, check out my Microsoft Word Date Calculation Tutorial in the 'Sticky' thread at the top of this forum:
Microsoft Word Date Calculation Tutorial
In particular, look at the item titled Interactively Calculate A Person’s Age. Do read the document's introductory material.
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Old 12-12-2013, 09:28 AM
rossjp rossjp is offline Use formula in "Age" field to calculate age Windows XP Use formula in "Age" field to calculate age Office 2007
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I have tried =DateDiff("yyyy",DOB,ReviewDate)+Int(Format(DOB,"m mdd").Format(ReviewDate,"mmdd")) This formula was tried in a field identified as Age but did not return anything. DOB and ReviewDate are other fields in the document both identifies as such in their properties.
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Old 12-12-2013, 02:14 PM
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macropod macropod is offline Use formula in "Age" field to calculate age Windows 7 32bit Use formula in "Age" field to calculate age Office 2010 32bit
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Have you even read the tutorial? It contains nothing like the code you're trying to use. Aside from the fact Word doesn't have a DateDiff field function, your formula looks like something you've copied & pasted from Excel.
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Old 12-13-2013, 07:20 AM
rossjp rossjp is offline Use formula in "Age" field to calculate age Windows XP Use formula in "Age" field to calculate age Office 2007
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Yes but I must not be as sharp as I thought because I can't figure out exactly what to enter into the "Age" field as a formula to give me a person's age by subtracting the "DOB" field date from the CurrentDate" field.
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Old 12-13-2013, 09:03 AM
Charles Kenyon Charles Kenyon is offline Use formula in "Age" field to calculate age Windows 7 64bit Use formula in "Age" field to calculate age Office 2013
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Quote:
Originally Posted by rossjp View Post
I have tried =DateDiff("yyyy",DOB,ReviewDate)+Int(Format(DOB,"m mdd").Format(ReviewDate,"mmdd")) This formula was tried in a field identified as Age but did not return anything. DOB and ReviewDate are other fields in the document both identifies as such in their properties.
This looks like an Excel formula rather than a field calculation, to me. Field date math looks a lot more complex.

The basic field, on page 11 of Paul's tutorial, is:
{QUOTE{ASK BirthDate "What is the Birthdate?"}{SET by {BirthDate \@ yyyy}}{SET bm {BirthDate \@ M}}{SET bd {BirthDate \@ d}}{SET yy {DATE \@ yyyy}}{SET mm {DATE \@ M}}{SET dd {DATE \@ d}}{SET md{=IF((mm=2),28+(mm=2)*((MOD(yy,4)=0)+(MOD(yy,400 )=0)-(MOD(yy,100)=0)),31-((mm=4)+(mm=6)+(mm=9)+(mm=11)))}}{Set Years{=yy-by-(mm<bm)-(mm=bm)*(dd<bd) \# 0}}{Set Months{=MOD(12+mm-bm-(dd<bd),12) \# 0}}{Set Days{=MOD(md+dd-bd,md) \# 0}}{IF{={IF{={BirthDate \@ "dddd"}}= "!*" 0 1}+{IF{={BirthDate \@ "MMMM"}}= "!*" 0 1}+{IF{by}= "!*" 1 0}+{IF{BirthDate \@ yyyyMMdd}<{DATE \@ yyyyMMdd} 0 1}}= 0 "If your Date of Birth was {Birthdate \@ "d MMMM yyyy"}, then your age is {Years} Year{IF{Years}= 1 "" s}, {Months} Month{IF{Months}= 1 "" s} and {Days} Day{IF{Days}= 1 "" s}." "Data entry error!"}}

That one uses an Ask field to query for the date.
The next field looks for the birthdate in a bookmark and may be what you are looking for.

{QUOTE{SET by {BirthDate \@ yyyy}}{SET bm {BirthDate \@ M}}{SET bd {BirthDate \@ d}}{SET yy {DATE \@ yyyy}}{SET mm {DATE \@ M}}{SET dd {DATE \@ d}}{SET md{=IF((mm=2),28+(mm=2)*((MOD(yy,4)=0)+(MOD(yy,400 )=0)-(MOD(yy,100)=0)),31-((mm=4)+(mm=6)+(mm=9)+(mm=11)))}}{Set Years{=yy-by-(mm<bm)-(mm=bm)*(dd<bd) \# 0}}{Set Months{=MOD(12+mm-bm-(dd<bd),12) \# 0}}{Set Days{=MOD(md+dd-bd,md) \# 0}}"Your age is {Years} Year{IF{Years}= 1 "" s}, {Months} Month{IF{Months}= 1 "" s} and {Days} Day{IF{Days}= 1 "" s}."}

You can see these field by using the Alt-F9 toggle to display field codes.

This isn't rocket science but seems a bit like alchemy because of the complexities of the calendar as well as the assumptions built into Word and Windows. These fields do not work for dates before January 1, 1901.

Read the tutorial, including the introductory part. Paul's tutorial is the best explanation of this stuff that I know, anywhere. You won't find it in books, and I don't think you'll find it on the Microsoft site.

Using Fields in Microsoft Word
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Old 12-13-2013, 02:23 PM
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macropod macropod is offline Use formula in &quot;Age&quot; field to calculate age Windows 7 32bit Use formula in &quot;Age&quot; field to calculate age Office 2010 32bit
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Quote:
Originally Posted by rossjp View Post
Yes but I must not be as sharp as I thought because I can't figure out exactly what to enter into the "Age" field as a formula to give me a person's age by subtracting the "DOB" field date from the CurrentDate" field.
As you'll see from Charles' reply and from the tutorial, it's a whole lot more complicated than that..
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Old 12-20-2013, 10:02 AM
rossjp rossjp is offline Use formula in &quot;Age&quot; field to calculate age Windows XP Use formula in &quot;Age&quot; field to calculate age Office 2007
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Thanks for the enlightenment regarding Word. I've gone back to good old reliable Excel for this.
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Old 12-20-2013, 03:48 PM
Charles Kenyon Charles Kenyon is offline Use formula in &quot;Age&quot; field to calculate age Windows 7 64bit Use formula in &quot;Age&quot; field to calculate age Office 2010 32bit
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Quote:
Originally Posted by rossjp View Post
Thanks for the enlightenment regarding Word. I've gone back to good old reliable Excel for this.
Whatever works for you! Excel is built for calculations. Word is not.
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Old 12-30-2013, 12:31 AM
eNGiNe eNGiNe is offline Use formula in &quot;Age&quot; field to calculate age Windows 7 32bit Use formula in &quot;Age&quot; field to calculate age Office 2010 64bit
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Just for more options, try a search on "Epoch dates Excel" in case that throws up anything useful. I've not had to parse/compare dates for decades – or units of 315 360 000 seconds, if I've calculated that correctly <g> – but remember finding the arithmetic a lot easier when I wasn't working with ddmmyy strings.
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