Re: [MS_AccessPros] Calculation won't work when contains negative numbers.

 

Dear Crystal,

Thanks for your help. My formula might be a little more complicated, I will write my problem in details as soon as possible.

Best Regards,

Kevin

发自 WPS邮箱客戶端

在 "crystal 8 strive4peace2008@yahoo.com [MS_Access_Professionals]" <MS_Access_Professionals@yahoogroups.com>，2018年11月4日 08:40写道：

 

hi Kevin,

another important consideration is Null ... + does not ignore them -- any null makes everything not able to be determined. So if a control has no value, how should the expression compensate?

1. =IIF (not isNull(controlname1] and not isNull([controlname2], [controlname1]+[controlname2],null)
or
2.
=nz( [controlname1], 0 ) + nz( [controlname2],0)
...
or something else?

~ crystal

Unicode Character Map -- free tool in Access
http://msaccessgurus.com/tool/UnicodeCharMap.htm

On 11/3/2018 5:50 PM, qingqinga qingqinga@yahoo.com [MS_Access_Professionals] wrote:

Dear Duane,

I will provide the details in my next email soon. I'm working on something urgent, will be back asap. Thanks a lot.

Best Regards,

Kevin

发自 WPS邮箱客戶端

在 "Duane Hookom duanehookom@hotmail.com [MS_Access_Professionals]" <MS_Access_Professionals@yahoogroups.com>，2018年11月4日 上午5:58写道：

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Posted by: qingqinga <qingqinga@yahoo.com>

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