Error Message To Display On Entry Of Duplicate Value With Two Fields As Index?
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.
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?
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
I created a subforum with an updateable query, and this works. I can view the results of the query, modify them and add new records.
However I shortly realized that once I deleted a record (either by some VBA code, or by SQL) that I could not re-add the same record through the subform.
I've made sure that the record is deleted, so there is no duplication of the key. I've made sure that Index is Duplicates OK, so there is no duplication issues there.
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
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.
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
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.
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."
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'.
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
1. I have a database (see attached) with three tables all of them with the same fields. The first three are numbers (InCo_No, Proto_No, Year_No). Each of these fields (numbers) can be the same in the other table(eg. Year_No), but the combination of the three cannot be.
How can I prevent the entry of a duplicate combination of these three fields?
2. I want to have a form to fill the three tables separately, depending the values in the other fields.
I'm trying to add filds to a table, and when I try to save I get the error message: cannot define fields more than once. The problem is, there are no duplicate field names. I've run compact and repair (several times) with no change.
Hi - it's been a while since I did much access and am trying to help someone out and have got into a pickle! A quick job has turned out to be a lot more complicated! Plus I'm having to use *spit* Acc 2k.
When I go into frmHighCostDrug (from the "add new drug episode" button on the frmPatient) I often get the message "The changes you requested were not successful because they would create duplicate values in the index, primary key, relationship etc etc."
Now, I didn't think I'd forgotten that much. I've got primary keys, values in the table set to Null, relationships set and ref integrity set and cannot for the life of me see why this is happening.
I know though, that one of you will say "oh it's that" and point it out and I'm going to feel completely stupid, but at the moment, I don't mind! I really can't figure it out.
I've attached db - it's in Acc2k and I tried to do a copy Acc'97 for those who don't have it but it caused no end of problems. Came up with messages that this form contains data that Access doesn't support!!!! ??? :confused: If I can sort it I will.
I am trying to add a "T" in front of an article number and write this new number to a table.Access cannot find the new Article strArt because it does not exist. When I put a msgbox after "if .nomatch then" it correctly shows the message. Yet it refuses to create the new record because of a key/index violation. Apart from an index on the recordkey, it has an index on Artno, both indexes do not (obviously) want duplicate values.
Here is the code: Private Sub btnCopyT_Click() Dim db As Database Dim rstArt As Recordset Dim strArt As String Set db = CurrentDb strArt = "T" & Me.frmNomenclatuurSubfrm.Form.Artno
This is a real mind bender. I am running a2k. I am merging two databases. table1 is in the backend database. table2 is linked to the second database. I run an append query to add table2 entries to table1. The append fails for 96 recs saying key violation. Turns out I can rerun the append if I drop the zip code field. I then try to manually change the zip code and receive the duplicate values in index, primary key, or relationship.
I ran a compact & repair the databases, still no go. I can't edit the value of the zip code. I import the table to a new database. Still can't change the zip code. I drop MANY of the indexes. Even the index on the zip code field. Run compact&repair. still getting the index message. I even re-imported to a new db again. Still same error message.
I may start again by importing JUST these two tables to a new blank db and see if I get the same issues. I'll keep you posted...but maybe there is someone out there who has seen this error before.
fyi-if I enter a new record, the autonumber field correctly increments to the next available autonumber field. (I say this because of another thread on this matter w/ autonumber fields and bug in A2003)
I am building a database to capture monthly statistics on a number of items. I want to ensure that users don't enter statistics for the same item for the same reporting period. I found the following instruction, but can't make it work:
It suggests that I create multiple primary keys in the table
When I do it, it comes back with an error: Index or primary key cannot contain a null value.
I am working on creating an access database for tracking physical assets linked to locations. I need to make a combo box list to show items other than the current location of the asset. Basically I need it to refer to last enery of the user and define the new possible entries. so we have a unique relationship between location and asset. The assets and location will always remain fixed and there is never going to be any addition. I am creating a web form so that it can be uploaded into sharepoint.
Don’t Understand why , tab index change’s All 55 fields are in the same order as the tables. The field is custname the frist fiels. Go to my Customer form Thery are 55 fields, The frist field is ( custname ) I go to the properties Then I go to tab index And I type in 1 Then I exit. Save form Then I open the form and the cursor is not on the frist field ( custname ) I go back to the properties And back to tab index Now it is 44 I have don e this procedure several times. And the tab index changes sometimes it is 44 , sometimes it is 49 And other times it is 36. How can I keep the fields in the same order that I set up the tables..??? What can i do about this. John527
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 ?
I want the recordnumber displayed on a continuous form. The code below works with the command button, but not afterinsert.
Here's the code: (function GetPosition() is the control source)
Private Sub Command28_Click() numbers End Sub
Private Sub Form_AfterInsert() numbers End Sub
Private Function getPosition() As String If Me.RecordsetClone.RecordCount > counter Then counter = counter + 1 getPosition = "#" & counter Else getPosition = "#new" End If End Function
Private Sub numbers() counter = 0 Me.Requery End Sub
So it should do something like this:
#1 [ctrl 1] #2 [ctrl 1] #3 [ctrl 1] #new [ctrl 1]
But called from after insert only the records on the screen get updated unless I scroll up, so simplified it looks like this:
----------------- top of subform after scrolling up #3 [ctrl 1] ----------------- top of subform before scrolling up #1 [ctrl 1] #2 [ctrl 1] #new [ctrl 1]
Where else can I put it or how can I modify the code to make it work? Aidan
Using an Access 2003 format database, opening in Access 2007...When I try to open my database I get two errors and it will not open.ID is not an index in this table.ParentId is not an index in this table.
I get the error when it opens with autoexec and when I bypass autoexec. I have a master copy of the database that I tried to link to the first database to import tables but I still get the error.
