Duplicate Entry Error Message
Jul 7, 2006
Hi!
I have a form which is based on student records. What I'm trying to get Access to do is to bring up an error message as soon a duplicate student number has been entered. At present I've managed to replace the Access standard error message 3022 with my own by using the following code:
Private Sub Form_Error(DataErr As Integer, Response As Integer)
Const conDuplicateKey = 3022
Dim strMsg As String
If DataErr = conDuplicateKey Then
Response = acDataErrContinue
strMsg = "Duplicated record. Please recheck your data."
MsgBox strMsg
End If
End Sub
However the error message only appears when you try to leave the form (e.g. start a new record). I would like the error message to appear as soon as the user leaves the Student Number text box on the form. Is there anyway to do this?
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Mar 7, 2005
So now, I'm using the code below to prevent duplicate name entry and it is working great - EXCEPT when I enter a first or last name which contains a ' (ie, O'Tool, O'Malley, O'Hern)...anyone got any ideas for me on how to make this not happen?
The error I get is:
Run Time error '3075'
Syntax error (missing operator) in query expression '[Last Name]='O'Hern' And [First Name]='Lori'.
The code i'm using is:
Private Sub Last_Name_AfterUpdate()
'Check for duplicate first and last name using DCount
If DCount("*", "[Constituents]", "[Last Name]= '" & Me![Last Name] & "' And [First Name] = '" & Me![First Name] & "'") > 0 Then
Beep
MsgBox "This first and last name already exists in the database. Please check that you are not entering a duplicate constituent before continuing.", vbOKOnly, "Duplicate Value"
Cancel = True
End If
CustID_Exit:
Exit Sub
CustID_Err:
MsgBox Error$
Resume CustID_Exit
End Sub
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Jun 27, 2011
I was using the following code on a field (ItemCode) that was indexed to prevent duplication of records. The intent is that the user will get an error message that a duplicate exists before they enter all the data for the record and get the built in error message that Access 2003 provides when an index violation has occurred.
Code:
Private Sub ItemCode_BeforeUpdate(Cancel As Integer)
Dim Answer As Variant
Answer = DLookup("[ItemCode]", "tblQuestions", "[ItemCode] = '" & Me.ItemCode & "'")
If Not IsNull(Answer) Then
MsgBox "Item Code already exists" & vbCrLf & "Please enter unique Item Code.", vbCritical + vbOKOnly + vbDefaultButton1, "Duplicate"
Cancel = True
Me.ItemCode.Undo
Else:
End If
End Sub
Now, the index for this is based on two fields (ItemCode and Question Group). I would like to display the same message before update but don't know how to include the second field in the syntax.
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Nov 27, 2006
I have struggled with this for so long now I hope someone can help.
I have a form called frm_Collections which is run from the query (qry_Collections). When I type into the Reg field in the Form I would
like the user to know if the Reg details have already been used in a
previous record. The database can have duplicates in this field, however a
"Warning Message" would promt some investigation.
I have tried loads of DLookup on Before Update, but really need setting of
in the right direction.
Thanks
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Oct 24, 2013
I have a single table in my database and I have to make a form for entering contact details for clients, staff, funding bodies and everyone else into this table. There is a phone number and what code I would use the get it to check if the number already exists.
If it does, I wanted it to return a custom message telling you what entries it already exists for by displaying certain fields so that they can be identified, such as name and organisation, but then I wanted the custom message to allow you to confirm entry of the data anyway. This is because there may have been an error in entry or as some people may be contacted on the same phone number, I want it to allow the option to continue and enter the data anyway.
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Jul 6, 2005
hi,
the below scrip was taken from another forum member.
i have put this in the Forms / error VBA
but i still a little lost
i have set 3 fields to be indexed not to allow duplicate information (Forename, Surename, DOB)
i was then advised to error trap so it would highlight that i have enterd a duplicate record on typing in the DOB (As that as third feild to be entered)
so i then used the below script, however this doesnt highlight that it is a duplicate it just doesnt let me go on to the next record, the only time the error message is highlighted is when i go into design mode.
anyideas on where to go from here.
Private Sub Form_Error(DataErr As Integer, Response As Integer)
If DataErr = 3022 Then
Response = acDataErrContinue
MsgBox "Tis MerID alredy exist!"
Exit Sub
End If
If DataErr = 2169 Then
Response = acDataErrContinue
MsgBox "Tis record will not be saved!"
Exit Sub
End If
End Sub
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Nov 29, 2006
I have a form - see attached image.
The first text box is called Job_No. When a number is entered here how can I check that the number doesn't already exist when the user tabs to the next box. Then if it does exist display a custom message to the effect "This already exists" and not the Access default duplicate error message.
Thanks
Michael
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Apr 26, 2013
How to create custom error message for duplicate data? I want this custom message at text box before_update event not at form_error .....
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Aug 14, 2013
How to control the below message to something like this through VBA:
"The Job: " & JobNumber & " already exists in the table." or to open an alternate form where they can make the change. Allowing duplicates is not appropriate for what I am trying to accomplish. I just want a friendly way of rerouting a user to understandable answer.
instead of this:
"The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again."
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Jul 25, 2013
I need to be able to produce an error on a form where the user attempts to create a new user that already exists. The error needs to be produced when the save button is clicked.
See below for the existing code on my save button which exists in form, 'frmAddEditUser':
Private Sub cmdSave_Click()
If IsNull(cboManagerID) = True Then
MsgBox "Please select a manager", vbExclamation, "Details Missing!"
Me.cboManagerID.Requery
[Code] ....
Currently, if I attempt to create a user with the same Payroll ID as an existing user, my 'User details saved' message box is displayed and to the user it looks like a new record has saved successfully which isn't the case.
I need a message box to appear displaying something like "Payroll ID n already exists" where n is the 'PayrollID' of the duplicate record. (Is it possible to combine a value from a certain control and ones own custom text?)
Note: PayrollID is a combination of letters and numbers, i.e. two letters, followed by 5 numbers, e.g. JD12345.
For reference, the table/field and and control are called, '[tblUser].[PayrollID]' and 'txtPayrollID' (on 'frmAddEditUser') respectively; it is from this field and control that I want the error to be produced if the user is entering the same values which are existing in 'tblUser'.
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Jan 6, 2014
I am looking at the public function routine, that validates the password entry. I want to know how i can make a message pop up with the specific error the user has made on entry.
Public Function ValidatePwd(varPassword As Variant) As Boolean
Dim blnValid As Boolean
Dim blnValidCriteria As Boolean
Dim intChar As Integer
blnValid = Len("" & varPassword) >= 4 And Len("" & varPassword) <= 12
[Code] ....
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Apr 30, 2006
I tried using a message box to try and validate text entry on a form into a bound txt box 'PaymentAmount', If there is no payment entered, using the properties box Validation Rule ,- 'is not null' then entered a validation text ="Please enter an Amount" but this does not work. How can I get a message box to appear if someone leaves the entry field empty so that they have to make some entry to move on. I have already entered this in the table validation field as well as 'Required - yes', but the message is an Access one not my own. Where or how do I do this ?
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Dec 8, 2004
I have a Timesheet form where you select your name from a combo, and you select a Timesheet Period from another combo. Then you can enter various details in the sub-forms.
I want to prevent a user from being able to enter two timesheets for the same period. What's the best way of achieving this? I would like a pop-up to appear saying "You have already started a timesheet for this week. Please use the Update Form Dialog"
The timesheet form is bound to tblTimesheets which contains fields TimsheetID, StaffID, and TimesheetPeriodID
In cboNameSelect, StaffID is bound
In cboPeriodSelect, TimesheetPeriodID is bound.
Thanks
S
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Jan 14, 2005
Hello to you all, it's my 1st post here…
How can I change the default message (as you can see in the picture) that appear every time that I try to update my record?
I want to write something like "You Have to select a different Number"
And one more question, the message only appear when I'm pressing the record selectorbutton only after the user has already filled all the form) is there a possibility that I can write a code that will check for duplicate data immediately after the user typed it?
Thanks for your help
David
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Jul 16, 2012
I currently have a field on a form thats indexed (no duplicate values). What I want, is if the user types a existing social in the field, that it lets them know the social is in use and that the record will not save.
I believe this will have to use the before update event for my pSocialSecurity control and that I will need to use the DCount function.
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May 30, 2005
I have a table that has (to simplify things) two fields.
[Patient_No] [ID]
BA4206 1067404
BA4206 1067405
BG1013 1067545
BG1013 1067546
BG1013 1067547
BG1111 1078432
I want to be able to count the number entries where the Patient_No is the same and output the query like this:
[Patient_No] [ID] [COUNT]
BA4206 1067404 1
BA4206 1067405 2
BG1013 1067545 1
BG1013 1067546 2
BG1013 1067547 3
BG1111 1078432 1
Hopefully this is just a simple query but for some reason i cannot get it to work.
Any help is much appreciated.
Thanks in advance
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Feb 28, 2005
Have read through all the threads related to this topic and can't find anything to help. Just want a message box to pop up after entry of first and last names in a form if the string already exists in the database. DLookup works wonderfully for validating on one field, but adding the second field is driving me crazy - Can I use DLookup to check more than one field? The following code gives me the error: "Run time error '2001' - You canceled the previous operation."
Private Sub LastName_AfterUpdate()
Dim x As Variant
x = DLookup("[txtLastName]", "[tblVolunteerInfo]", "[txtLast Name]= '" & Me![LastName] & "'" & " And " & "[txtFirstName] = " & Me![FirstName])
On Error GoTo CustID_Err
If Not IsNull(x) Then
Beep
MsgBox "This name already exists in the database. Please check that you are not entering a duplicate person before continuing.", vbOKOnly, "Duplicate Value"
Cancel = True
End If
CustID_Exit:
Exit Sub
CustID_Err:
MsgBox Error$
Resume CustID_Exit
End Sub
thanks,
lkwander
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May 22, 2006
I have a Form based on a table of current Players in a football league.
The Form is used to edit, but mainly add new registrations. The fields are...
Surname FirstName Address Suburb Age Club YearRegd
Is it possible in some way to have an alert or message come up stating that the Player is already registered if the Table already contains a player with the same Surname and FirstName only. This would need to happen after the FirstName has been entered as it is the second field after 'Surname'. I'm not sure if Access can do this type of function or not.
I've searched the Forums but have had no luck.
Any advice/assistance is greatly appreciated.
Thank-you very much.
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Jun 8, 2015
How can I create an alert message to tell the user that there are an existing work order number in the table? I don't want it to restrict the entry, just inform the user that there is an existing work order number, do they want to continue.
Btw, the code will be attached to a combo box (cbowonum).
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Aug 5, 2015
I have tried the code below, but I am not getting what I need. I have a table [Student Info] with a field [Student ID] as the primary key and many other fields. I added the Student ID field to my form, [Student Add]. When I input an ID that already exists I get an error code as expected but then my form still loads. I currently have a second form for updating student info [Student Update] for which I have a parameter form that asks for the Student ID. I would like to use just one form to add and update students if possible. So, if you add a new Student ID you can enter all pertinent data. However, if you enter a duplicate Student ID the form should populate with that student's information.
If I must have two forms (1 to add and 1 to update) and a duplicate Student ID is entered into the Add form, the user should get a message stating that the record already exists. Then, (Option 1) force the Add form to close without saving or (Option 2) give an option for opening the Update form. Either option is acceptable at this point because I am stuck.
When attempting to use the code below, I get a data mismatch error on the "Answer = DLookUp......" line.
Here's one I use on Social Security numbers for a pop up when a duplicate....
SS# is stored in table "tblApplicant"
Private Sub SocialSecurity_BeforeUpdate(Cancel As Integer)
Dim Answer As Variant
Answer = DLookup("[SocialSecurity]", "tblApplicant", "[SocialSecurity] = '" & Me.SocialSecurity & "'")
If Not IsNull(Answer) Then
MsgBox "Duplicate Social Security Number Found" & vbCrLf & "Please enter again.", vbCritical + vbOKOnly + vbDefaultButton1, "Duplicate"
Cancel = True
Me.SocialSecurity.Undo
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Dec 27, 2012
I would like to create a custom pop-up Message when one attempts to add a duplicate record.
Currently, I have a default pop-up message when you try to add a duplicate record. I set the field as Indexed= yes(No Duplicates) which generates a default pop-up message but it is technical and wordy. I would like to be able to simplify the wording to just let the user know not to add a duplicate record.
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Apr 27, 2005
I have a subform where records can be added or edited. There are two fields: firstname and lastname. I want a message box to appear when a first or last name is edited.
I do not want that message box to appear when a new name is being added. I use this code:
[CODE]....
Now I want to also prevent the user from leaving a record before both fields have data (first and last name are required). My efforts to do this seem to conflict with my message box issues.
Can anyone see what I'm doing wrong or how to do this?
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Apr 17, 2008
I am using a data entry form to enter new data into one of the tables.How can we prevent entry of duplicate records? Duplicacy shall be checked on the first two fields only.
Please help.
regards
bijon
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Sep 20, 2005
Greetings,
I am using Access 97 at work, Access 2000 at home. This is a work project.
I have a database that tracks employee awards. One type of award is the Peer Award. An employee can receive more than one award during the reporting period (01 May 05 through 30 April 06), but an employee can nominate someone only ONCE during this period. The query also filters all award for the word PEER in the Award_Type field.
I need a method in my subform (where all of the award info is entered) to display a message if the NOMINATED_BY field contains the name of a nominator more than once. I am using a combobox (cboNominated_By) to select the nominator from a query based on the Employee_Name table.
I had thought of making the field NO DUPLICATES, but cannot do that, as I also keep these records as multi-year archives.
In my query I have as the criteria to limit records for the reporting period above.
In my subform, is there a method to check the combobox that I'm using for a duplicate nominator, then notify the user of this duplicate?
I've seen something similar to what I want in the below thread, but FoFa didn't offer an example of how this would be accomplished;
Notification of Duplicate Records
http://www.access-programmers.co.uk/forums/showpost.php?p=158082&postcount=2
Thanks all for any assistance you might offer!
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Sep 18, 2005
Hi
Please help. I have create the below code in red but what is the mistake.
If DCount("[product_code]", "PRODUCT MASTERLIST", "[product code]"= " & Me.Product_code& "'") Then
MsgBox "This Product Code has already exists!!"
Cancel = True
Me.Undo
Exit Sub
Else 'Do nothing
End If
Thank you
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Aug 23, 2006
Hi all,
I created a form for entering employee skillset in Accounting.
I have set up three fields - one for Primary Skillset and the other two for secondary skill sets -
The skillsets are -Payables, Receivables, General Ledger, Purchasing etc.
How can I ensure that a user will not enter duplicate values in the three fields.
That is a user will not enter for examply "Payables" in the Primary Skillset, and Secondary Skillset fields.
I tried creating a multiple field index but it does ont appear to work.
I will appreciate all the help.
Thanks
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