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vrf Field Collector

Question asked by rsb on Apr 21, 2005

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Similarly:

How about a clean way to remove a specified field from a record?
i.e. given a record with unknown number of fields A, B, C...
how do I create a new record that has fields B,C,... only?

I really don't want to break down and write VEE save format
directly since that's fragile, but so far that may be the cleanest
way that I can think of. So I'm of course very open to suggestions.

thanks

Stan

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VRFuser Apr 20, 2005 11:04 PM
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> I really don't want to break down and write VEE save
> format directly since that's fragile, but so far that
> may be the cleanest way that I can think of.

I think you're right. The only other thing I can think of is to generate a
custom VEE library on the fly, and that opens up it's own can of worms.
-SHAWN-

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bill.ossmann Apr 21, 2005 12:07 AM
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How about the subrecord object? It can be set to exclude fields.
--
Bill Ossmann
Philips Ultrasound
e-mail: bill.ossmann@philips.com
--------------------------------------------------------

Similarly:

How about a clean way to remove a specified field from a record?
i.e. given a record with unknown number of fields A, B, C...
how do I create a new record that has fields B,C,... only?

I really don't want to break down and write VEE save format
directly since that's fragile, but so far that may be the cleanest
way that I can think of. So I'm of course very open to suggestions.

thanks

Stan

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bill.ossmann Apr 21, 2005 1:27 AM
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> I think you're right.

Of course if you want to you can use a collection of Variant as a record
array. In that case your options multiply by a few hundred, but as VEE 7
isn't involved you'd have to go with ActiveX and it could get rather
annoying.
-SHAWN-

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VRFuser Apr 21, 2005 2:35 AM
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> I think you're right.

Of course if you want to you can use a collection of Variant as a record
array. In that case your options multiply by a few hundred, but as VEE 7
isn't involved you'd have to go with ActiveX and it could get rather
annoying.
-SHAWN-

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rsb Apr 21, 2005 11:09 AM
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Hi All

I have an interesting need and am hoping for a clean answer.

In particular I want to programmatically create a record from
a list of field names and values. I'm using my version of
a buildField() function that creates a record with one field
of specified name and value.

I want to input a list of names and values to a loop that
uses buildField() for each field and assembles the overall
record. Seemingly simple but I run into a problem.

With a data collection ( building an array) the normal
way to do this is with a collector that's triggered
after the various inputs are given. Something like:

     for count ---- create data ------    A
        |                                       Collector
        |----------------------------------XEQ

With assembling a record there doesn't appear to be a clean
way to collect the fields so I end up doing something hokey
like creating a dummy record to get started and using a
Merge record object and a bunch of junctions and whatnot.
ugly at best.

SO- any suggestions for a clean way to implement something
that would functionally look like:

   for count --- buildField(name,value) ---    A
       |                                             FieldCollector
       |----------------------------------------XEQ

This loop would be driven by a name and value list- say

name1    value1
name2    value2
name3    value3
...

And of course the output is a record with <n> fields

So- any suggestions?

I'm hoping I'm overlooking something obvious!

Stan

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