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DSum not working correctly

Posted on 2011-03-11
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Last Modified: 2013-11-05
I am using DSum as a default value on a form but am not getting the correct result.  Probably because I have " and ' marks wrong.  Can someone help?  Here my code:

=DSum("Qty","tblProdInventory","'Style = #10 Product' & 'CompanyName = frmProjectDetail!txtCompany'")

--Steve
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Question by:SteveL13
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LVL 85
ID: 35111836
=DSum("Qty","tblProdInventory","Style = '#10 Product' AND CompanyName ='" &  frmProjectDetail!txtCompany & "'")
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LVL 85
ID: 35111850
Sorry, posted too quickly:

Also, understand that a Default value ONLY impacts New records. It will have absolutely no impact on Existing records.

And, in your case, if there is no value in txtCompany, or if txtCompany is on the same Form where you're running this, then you will almost certainly run into issues with it.
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Author Comment

by:SteveL13
ID: 35111880
I pasted this in the default value and am getting a #Name? result.   ??
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Expert Comment

by:MINDSUPERB
ID: 35111893
Try this one

=DSum("[Qty]","tblProdInventory","[Style] = '#10 Product' And  [CompanyName] =' " & Forms!frmProjectDetail!txtCompany & "'")

Sincerely,
Ed
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Author Comment

by:SteveL13
ID: 35111938
Tried that one and now I get no result in the field.
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LVL 52

Expert Comment

by:Gustav Brock
ID: 35111992
No leading space:

=DSum("Qty","tblProdInventory","Style = '#10 Product' And CompanyName = '" & frmProjectDetail!txtCompany & "'")

/gustav
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LVL 10

Expert Comment

by:conagraman
ID: 35112152
i = DSum("Qty", "tblProdInventory", "Style = '#10 Product' And CompanyName = 'frmProjectDetail!txtCompany'")
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LVL 10

Expert Comment

by:conagraman
ID: 35112176
cactus_data:

my bad. i didnt refresh before i saw your comment
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LVL 85

Accepted Solution

by:
Scott McDaniel (Microsoft Access MVP - EE MVE ) earned 2000 total points
ID: 35112361
<Tried that one and now I get no result in the field.>

Are you absolutely sure that your DSum will return a value? That is, are you sure this is at least one positive value in the Qty field for the Criteria you've entered? That is, there is at least one value in that field where your Style is "#10 Product" and the CompanyName is the value in Forms("frmProjectDetail").txtCompany?

Does the CompanyName contain any odd names, like O'Brian? If so, you'll need to "escape" those:

=DSum("Qty","tblProdInventory","Style = '#10 Product' AND CompanyName ='" &  Replace(Forms("frmProjectDetail").txtCompany, "'", "''") & "'")
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