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Getting #Type! error in expression builder

Posted on 2016-10-18
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Last Modified: 2016-10-19
Dear Experts,

Wondering if you all could help me with this expression:
The following expression is in the control source of txtPercentPos:
=Format((Val([txtPosCnt])/Val([txtPosCnt])+Val([txtNegCnt]))/100,"#%")

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but when I display the continuous form I get:
screenshot
How can I prevent the error from happening if there are no values in the txtPosCnt or txtNegCnt textboxes?

Thanks!
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Question by:shogun5
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5 Comments
 
LVL 34

Expert Comment

by:Norie
ID: 41849458
Does this work?

=Format((Val(Nz([txtPosCnt]))/Val(Nz([txtPosCnt]))+Val(Nz([txtNegCnt])))/100,"#%")

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0
 
LVL 75

Accepted Solution

by:
DatabaseMX (Joe Anderson - Microsoft MVP, Access and Data Platform) earned 500 total points
ID: 41849469
Try

=Format(IIf(Nz([txtPosCnt], 0) = 0, "", (Nz([txtPosCnt], 0) / [txtPosCnt] + [txtNegCnt])) / 100, "#%")

Hope I have the parens in the right place ...
0
 

Author Comment

by:shogun5
ID: 41849487
Joe,

This works if txtNegCnt is blank but errors if txtPosCnt is blank as well. Can you assist with check if both fields are blank?
0
 

Author Closing Comment

by:shogun5
ID: 41849510
Nevermind! Figured it out! Thanks again!
0
 
LVL 75
ID: 41850609
Cool.  Mainly, you have to prevent Divide By Zero ....and ... Null propagation - hence the Nz() to convert Null to Zero.

Sorry ... I went to bed shortly after that post.
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