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Another syntax issue

What is wrong with:

(DSum("[QTY_ORDERED]","tblInventory","[PART_NO] = '" & [Forms]![frmParts]![txtPART_NO] & "' AND [TRNX_TYPE] ="ORD"")

Flyster

See if this works:

(DSum("[QTY_ORDERED]","tblInventory","[PART_NO] = '" & [Forms]![frmParts]![txtPART_NO] & "' AND [TRNX_TYPE] = '" & "ORD")

Flyster

ASKER CERTIFIED SOLUTION

Simon

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SteveL13

ASKER

That one worked. Thank you!

Simon

You're welcome. I remember struggling when I first built these domain aggregate functions, especially when inserting control values like [Forms]![frmParts]![txtPART_NO] into the formula. I find it helps to temporarily replace them with a hard-coded value because it simplifies the testing and makes the formula easier to examine for balance (open/close brackets, paired single & double quotes).

=DSum("[QTY_ORDERED]","tblInventory","[PART_NO] = '" & [Forms]![frmParts]![txtPART_NO] & "' AND [TRNX_TYPE] ="ORD"") 
v
=DSum("[QTY_ORDERED]","tblInventory","[PART_NO] = '55' AND [TRNX_TYPE] ='ORD' ")

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Notice that when you take the reference to the control out you can also take out the surrounding & and " from either side, so it makes quite a difference to the length of the formula.
Also worth spacing out the single and double quotes where possible to improve readability.

SteveL13

ASKER

Simon,

Yes, the single and double quotes really confuse me.

--Steve