DSum In Text Box Control Source

Oct 26, 2012

I have the following tables and am trying to populate a text box on a form, and store that value in a field

TotalSegLengths

tbl_Segments
LineNum SegLength
1 3
2 9
2 10

tbl_Lines
LineNum TotalSegLengths
1
2
3

So when I create a new record in tbl_Lines from the form (Form is bound to tbl_Lines) it should query the tbl_Segments, add up the SegLengths for the corresponding LineNum and store that value in TotalSegLengths.

So for example, with the data as per above, from the form, create a new record with LineNum = 2 and it should display 19 in a text box and store 19 in the TotalSegLengths field.

I was trying to use DSum in the text box Control Source but was just returning an #Error in the text box.

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Text Box Control Source???

Jun 20, 2006

Hi everyone,

This is a very simple problem, and it seems to me like it should work but it doesn't. On my form, I have a field called [mindate], which looks up the earliest date from a table. I also have a field called [maxdate] which looks up the latest date in my table. These both work great. My third text box [difference] is supposed to find the difference between the two above dates in days, but it doesn't work.:eek: The control source of this [difference] text box is this:

=DateDiff('d',[mindate],[maxdate])

Any suggestions?
Chris

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Apr 8, 2007

hi,

im trying to add a text box for entering a date into the table database for my form but i cannot seem to connect the control source to the text box, the name of the box/script is not appearing in the control source list. I have already made a column in my table for this box on the form but just cannot connect the two properly?

Any quick thoughts on this?

Thanks.
Trevor.

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Jul 23, 2015

I'm trying to create an Expression as Control Source for a Text Box.An example which can be found is:

Code:
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In above example the criteria is based on [ProductID] on a form.Is it possible to change it, so criteria is based on a value from a specific query, i.e. similar as above?I have tried something like this, but it doesn't work:

Code:
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Feb 2, 2014

I have two queries called "Query_match_AND" and "Query_match_OR". I want to show the total number of records for either of these queries in a form called "form_candidates_result" depending upon the combo box value (either "AND" or "OR") in a form called "form_match".If I put

Code:

=DCount("*","Query_match_AND")

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Code:

Select Case [Forms]![form_match]![ANDOR]

Case "AND"
Me.CandidateCount.ControlSource = DCount("*", "Query_matching_AND")
Case "OR"
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End Select

it doesn't work and I get

Code:

#NAME?

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Jul 7, 2014

I have an unbound form which has 2 unbound combo boxes on it, both based on the same table, but I have used a query for each one to created the sort order, one alphabetically by item name (cmbA) and the other numerically by the item number (cmbN) . I also have a text field (ID) upon which is based a report when the user clicks a button. Currently the text box (ID) has a control source of column 1 of cmbA and I have the report working perfectly if one selects from the name combo box (cmbA) What I want to do is allow the user to select from cmbN and have the control source of the ID text box equal the number the selected so the report button will work then also.

I have tried to set the control source after update of cmbN but all that does is blank out the ID text box. I have not done this before so I am sure I have done it incorrectly. I tried again this morning using me.ID.ControlSource = Me.cmbN and stepping through the code shows that the cmbN ControlSource is equal to ID but I can't make the code that follows use the results.

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Dec 24, 2013

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This is to calculate the GPA. However, sometimes the denominator can become 0 and an error us returned. I would like to get "NA" in return instead.

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Feb 7, 2014

I currently have a DLookUp formula in a Text Box Control Source. It returns the value I am looking for, however, the value will not add to the record. I have tried putting the DLookUp formula in the Default Property, but it is not working.It is a multi-criteria DLookUp, where the criteria is entered into the form.

=DLookUp("[TBA CUSIPs]","[TBA CUSIPs]","[Settlement Month]=" & [Forms]![Enter Trade]![Settlement Month Text Box] & " AND [Coupon]=" & [Forms]![Enter Trade]![Coupon Text Box] & " AND [Instrument] = '" & [Forms]![Enter Trade]![Instrument Combo Box] & "'")

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Mar 19, 2013

My form is based on a table (SOP TBL) and has several text boxes with control sources of the records in the table. I need to add a criteria to one field (SOP Number) so that only current versions of the number show up. I have the SQL for a query that I use in another form for a combo box as shown below. What this criteria does is find the version number which is the last 2 digits of the SOP Number and displays only that record for the SOP Number in the combo box. How can I apply this code to the text box with the control source directly from the table so only the current records are displayed on the form?

Code:
In (select max([SOP Number]) from [SOP TBL] group by left([SOP Number], len([SOP Number]) - 2))

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May 30, 2013

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CSVal = Format(Forms![Contract]!SearchBox.Column(11), "ddd m/d/yyyy") (this works)
If CSVal = "" Then _
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Oct 7, 2005

Hello,
I've got a text box on my form header with a calculation in the control source that adds values from other text boxes on my form.
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Is there a way to move this calculation out of the control source and still have the calculation populate this text box with the sum of the calculation, so I can choice a field in which to save this calculations sum.

Calculation in the text box control source=
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Jul 16, 2015

is it possible to use a sum select query in the control source field of a text box. I have a query that works fine in a combo text box but I keep getting a 'syntax error with subquery parenthesis' when I try and build on in a normal text box.

I am building the query using query design view and the query works and then I'm copying the SQL code behind the query into the text box field and access reformats it s a bit so not sure it's that's the reason.

R_P_Data_P = Table
approvalNosys = Field in the table
status = Field in the table
score = Field in the table
cmrOverview = Form
[approvalNoSys] = field in form
1 is the criteria

Code:
SELECT R_P_Data_P.approvalNosys, R_P_Data_P.status, Sum(R_P_Data_P.score) AS SumOfscore
FROM R_P_Data_P
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I'm trying to do a

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I have table that I had to add a new field to which we update with a form. I tried to add a control for the new field but the field does not show up in the list for the control source. I am trying to add a list box to the form with a blank and 5 options.

I have attached screen shots of the table design and the form. The table has the field in datasheet view and I have manually entered a few entries in it but it still will not show in the control source for the form control. The top section of the form is where we enter and select the data for the new records. The bottom section (circled in red) autofills the matching record, from separate tables, for updating with the new entries.

I have added form controls for modified fields in the past so I am confused about why this is happening.

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I have a volunteer information database, and I am working on the form that will show the details of each volunteer's hours worked, among other things.

I've attached screenshots of a more or less final version of the Relationships (I've tweaked it a little in the last day or so but nothing life-altering), the section of the form in question, and a query I wrote (probably incorrectly) that does return hours on a given month sorted by NameID, which is useful, but doesn't put the information into fields like I'd imagined I could. If I can't figure out how to make what I'd like work, I guess I could just put a subform that displays the results of the query, but I'd rather do it another way.

I tried this in the controls for each field:

Code : DSum( [tblHoursWorked]![MonthWorked] , "MonthWorked='November'")

Obviously switching out the months, but I'm getting the response of #Name? in each field. No syntax error so I'm not sure if I have something configured incorrectly in the text boxes or if there's a problem with the function.

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I've got an IIf with a SUM function in it but, even in the footer, that only works for the current record. I need a SUM that has a nested IIf or WHERE in order to include all the records.

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