How to Edit Multivalued Fields

[yuanmiguel]

Hi,

I want to know if there is a way to edit a multivalued field?

please teach me how

thanks

PLEASE SEE ATTACH SAMPLE FILE

[ADezii]

This is a little more complicated then you may think. Using your Attached DB, and updating all occurrences of 'Bridge Cable' to 'RX157 Cable' in the [Description] Multi-value Field, the procedure would be:

1. Create a Recordset on the Detail Table.
2. Loop through all Records in the Detail Table via the Recordset.
3. For each Unique [ID], create another Child Recordset based on all the Values [Description] for this Multi-value Field.
4. Loop through these [Description] Records, and for each one that contains the text 'Bridge Cable' replace it with RX157 Cable.
5. If a Record in any Multi-value Field contains this text, place the Parent Recordset and Child Recordsets in Edit Mode.
6. Make the changes.
7. Update both Recordsets.
8. Do your Clean Up Chores!
9. Requery the Form.
   

   Dim db As DAO.Database
   Dim rst As DAO.Recordset
   Dim rstComplex As DAO.Recordset2
    
   Set db = CurrentDb
    
   'Open a Recordset on the Detail Table
   Set rst = db.OpenRecordset("SELECT * FROM Detail", dbOpenDynaset)
     'Loop through all the Records
     Do Until rst.EOF
       'Get the Description Type Complex Field
       Set rstComplex = rst!Description.Value
         'Loop through all Description Complex Data Type Values
         Do Until rstComplex.EOF
           'Does Bridge Cable appear in the Description Field?
           If InStr(rstComplex.Fields(0), "Bridge Cable") > 0 Then
             'Wherever 'Bridge Cable' appears, Replace it with RX157 Cable
             rst.Edit      'Parent Recordset must be in Edit Mode
               rstComplex.Edit
                 rstComplex.Fields(0) = Replace(rstComplex.Fields(0), _
                                        "Bridge Cable", "RX157 Cable")
               rstComplex.Update
             rst.Update
           End If
             rstComplex.MoveNext
         Loop
           rst.MoveNext
     Loop
    
   Me.Requery
    
   'Clean up chores
   rst.Close
   Set rst = Nothing
   Set rstComplex = Nothing
   Set db = Nothing
    

10. I do realize that this is a lot to absorb, so if there are any questions, please feel free to ask.

[yuanmiguel]

Hi ADezii,

Thanks for the reply..
kind a hard to absorb..
can you do that in my attached db.

Thank you so much

[zmbd]

@yuanmiguel:
ADezii, has provided you with a very reasonable and generous amount of his time and knowledge. Certainly as much as I would have done if I were not so buried at work these past months. (^_^)

At this point, please make the attempt to do the work yourself.

It does you no good to have ADezii, myself, or anyone else here do your work for you - we try to "teach you how to fish" not "give you the fish" ...

If you are still having issues after following ADezii's example, please post back with the details.

[yuanmiguel]

hi zmbd,

I'm sorry for that.
I know what you mean.Thank you for that.
I am a newbees in ms access/programmer.
It's easy for me to learn if i have some example to look up.
That's why i ask Adezii to try at my sample db.

Again sorry for the interpretation.

[zmbd]

No worries yuanmiguel.

Ah, yes, we've all started there and the better the examples we have to work with, often the easier it is to grab on to the tool. In this case, ADezii has provided a hammer with the safety grip and teather so that it should be easy enough for even a novice, with some work, to be able to adapt to the project at hand. (^_^)

It is ultimately up to ADezii how much help is provided and quite often ADezii is "generous to a fault" and as such is well loved and respected here by many, including myself, for the amount of help provided. Hence my request that you attempt to work thru what has already been provided - sometimes, one simply needs to stand-up and put that foot forward and go-fo-it!

If you have any problems following ADezii's example within your database, post back with the details.



(oh, and BTW, this is one reason to avoid the MVF unless you are having to post to a sharepoint site. There is nothing to be gained using MVF that can not be obtained within a properly normalized database. > Database Normalization and Table Structures. )