Form Duplicate Data...

Nov 2, 2006

Hi,

I have got a table that has following fields display on a form:

ClassNo Class Date ClassType ExecutionDate Order Quantity

The Table CLASSES has got many records which are duplicate. Mostly ClassNo is duplicated. I could have stopped duplication by restricting table not to accept duplicate values, but my requirement is such that i dont want to stop the table from accepting duplicate values. When i display the same table data on the form, all the duplicate entries are displayed.

All i need is to find a way to stop the FORM showing duplicate ClassNo Field. The Duplication restriction i wish to set only on ClassNo. If there are more than one ClassNo reptition than it should show that entry only once. For example the form looks like this:

ClassNo Class Date ClassType ExecutionDate Order Quantity
1 12-12-2006 A 12-01-2007 Ok 10
1
1
1
1
1
2 20-10-2006 A 20-11-2006 Ok 100
2
2
2
2

I wish to see the form this way:

ClassNo Class Date ClassType ExecutionDate Order Quantity
1 12-12-2006 A 12-01-2007 Ok 10
2 20-10-2006 A 20-11-2006 Ok 100

Regards,

Darno

Sorry i am posting it second time coz i got no response from any one, Hope this time some one genius might surface to help me.

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Prevent Duplicate Data In Form On A Fly...

Jul 5, 2006

Hi,

I have searched through the whole posts but could not find my query. I have a question related to prevent duplicate data entry in a form field.

I have a Form with 5 fileds on it: SNO, NAME, ROLL NO, CLASS, SECTION.

in the table design i have set the option of NO DUPLICATES on SNO(Autonumber) ROLL NO (text).

I wish to stop a user entering duplicate data in ROLL NO field before he reaches at the last field. What i meant is as soon as a user enters data in ROLL No field, it should check in table if the same data is already there. If the same data is found then it should give a message to prompt user of duplicate data, else it should continue to next field.

I have searched the whole forum but in vain. I am positive that there must be some one who holds the key to this solution.

Regards,

Darno

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Hi I've just signed up to the forum.
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Dim strMDPath As String
Dim strMDFileName As String
Dim strDCPath As String
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Beep
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ImportTableData_Exit:
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ImportTableData_Err:
MsgBox Error$
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End Function

Thank you for your help!

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Jan 8, 2005

Having a problem when saving a record that has been edited and contains a duplicate field. Here is what I'm doing.

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When the user finished making the changes to the record we use the same procedure to save the changes as we when the user is adding a new record...here it is.

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CustomerKey = Me.txtCustomerKey

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CustomerLast = Me.txtCustomerLast

CustomerAddress = Me.txtCustomerAddress

CustomerCity = Me.txtCustomerCity

CustomerProvince = Me.txtCustomerProvince

CustomerPostal = Me.txtCustomerPostal

CustomerCountry = Me.txtCustomerCountry

CustomerPhone = Me.txtCustomerPhone

CustomerFax = Me.txtCustomerFax

CustomerEmail = Me.txtCustomerEmail

CustomerWeb = Me.txtCustomerWeb

CustomerNotes = Me.txtCustomerNotes

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DoCmd.DoMenuItem acFormBar, acRecordsMenu, acSaveRecord, , acMenuVer70

'*** IF WE GOT THIS FAR WITH OUT ERRORS WE SAVED THE RECORD

'*** GO AHEAD & DISABLE THE FORMS VARIOUS FIELDS

'*** & BUTTONS ONCE AGAIN AS WE ARE JUST BACK TO VIEWING

'*** THE CUSTOMERS DATABASE

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txtCustomerKey_AfterUpdate

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Exit Sub

Err_CustSaveRec_Click:

'If the error generated was by a duplicate value.

'This can only be caused by the customer key as this

'is the only field which does not allow duplicate values.

'so warn the user of this duplicate value error and set

'the focus on the customer key field

If Err.Number = 3022 Then

'if user is editing a record

If CustomerRecStat = "edit" Then

'And the entered customer key has not changed

If Me.txtCustomerKey = EditCustKey Then

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'not really a duplicate

GoTo SaveCustomerRecord

End If

End If



Select Case MsgBox("This Customer ID was already located in the database. Click OK to enter a new Customer ID or Cancel to stop adding this record?", vbExclamation + vbOKCancel + vbDefaultButton1, "Duplicate Customer ID")

Case vbOK

Me.txtCustomerKey.SetFocus

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Case vbCancel

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End Select

End If

MsgBox Err.Description

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End Sub



The problem is when the user is editing a record. The database assumes the txtCustomerKey is a duplicate in the table. However we are not adding a new record so the duplicate error is false. Its just that the txtCustomerKey is the same as the record being edited. Its not DUPLICATED its the SAME.....



Any help anyone? Sorry for the long post but I'm a strong believer in the more information the better when trying to solve a problem....

Thx

Kao

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I need to know if I can store data in more than one field, without allowing Duplicate entries.

Example: We have to send out letters with a claim number on it, sometimes we need multiple claim numbers on a letter, up to about 10 claim #'s is the most I've seen thus far.

We mail merge into Word to create the letters.

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