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Why does cursor adaptor's cursorfill() cause a browse?
Message
De
27/03/2005 15:39:32
Mike Yearwood
Toronto, Ontario, Canada
 
 
À
27/03/2005 14:11:41
Mike Sue-Ping
Cambridge, Ontario, Canada
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9
Database:
Visual FoxPro
Divers
Thread ID:
00999309
Message ID:
00999342
Vues:
37
That may be so, but I really have to ask, why not do it the optimal way the first time?

>Thanks for the feedback Mike.
>
>As it is right now, I'm not worried about optimizing the query since the table (sec_ca) only has 2 records! Perhaps when it gets "larger" I'll use your code.
>
>Regards,
>
>Mike
>
>
>>Hi Mike
>>
>>>VFP9 Beta (and yeah I know it expires shortly).
>>>
>>>I've added a cursor adaptor to my form's dataenvironment and am trying to set it up via code as follows:
>>>
>>>
>>>SELECT * FROM SEC_CA WHERE CATEGORY = UPPER(ALLTRIM(this.caption)) INTO CURSOR csrCA
>>
>>FYI, you can get better performance out of that select command. Even if you have no indexes on sec_ca, you should avoid the this.caption and the upper(alltrim()) like this....
>>
>>LOCAL lcCaption
>>lcCaption = UPPER(ALLTRIM(THIS.Caption))
>>SELECT * FROM SEC_CA WHERE CATEGORY = m.lcCaption
>>
>>and if you have an index like UPPER(CATEGORY)
>>
>>then SELECT * FROM SEC_CA WHERE UPPER(CATEGORY) = m.lcCaption would be the optimal way to do it.
>>
>>
>>
>>>
>>>THISFORM.oDE.ADDOBJECT("ca"+this.caption, "caSectional")
>>>oCA = EVALUATE("thisform.oDE.ca"+ ALLTRIM(this.caption))
>>>
>>>WITH oCA
>>>	.Alias = "csr" + lcCategory
>>>	.BufferModeOverride = 5
>>>	.CursorSchema = ""
>>>	.DataSourceType = "NATIVE"
>>>	.FetchSize = -1
>>>	.KeyFieldList = "SECT_NO"
>>>	.SelectCmd = ALLTRIM(csrCA.Selcmd)
>>>	.Tables = ALLTRIM(csrCA.tablenames)
>>>	.UpdatableFieldList = ALLTRIM(csrCA.Updfldlst)
>>>	.UpdateNameList = ALLTRIM(csrCA.UpdnamLst)
>>>* The following line gets the data AND automatically displays it in a browse window!
>>>* Needless to say, that's very annoying.
>>>	.CursorFill()
>>>ENDWITH
>>>
>>>
>>>All of the cursor adaptor's settings are being filled in from values stored in a table. Prior to me doing this, I hardcoded them and the CursorFill() method did not cause the browse window to appear. What's causing it now?
>>>
>>>Regards,
>>>
>>>Mike
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