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resetting the master child  links in the right place

Posted on 2016-07-15
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Last Modified: 2016-07-15
access 2010  vba.

When i open a bound form,
I have a subform that i'm resetting the master child source to  ""

Forms!frmMainDataEntry![SapData subform].LinkMasterFields = ""
Forms!frmMainDataEntry![SapData subform].LinkChildFields = ""

I'm doing this to see the subform , initially on startup,  to see all the records in the subform.

What I need:
I have a textbox that I'm using to search into the subform.

I then need to reset the subform to the original settings when a person starts to type in the textbox:
I just dont know what property is the best to do this and when.

 Forms!COSTRECOVERY_MAINFORM![WR294_GRIDVIEW subform].LinkMasterFields = "Search_Term_Holder"
 Forms!COSTRECOVERY_MAINFORM![WR294_GRIDVIEW subform].LinkChildFields = "Customer Name"

i TRIED THE TEXTBOX before update event but i keep getting an error.
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Question by:Fordraiders
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Expert Comment

by:Nick67
ID: 41713025
to the original settings when a person starts to type in the textbox:
I don't know that that is REALLY what you want, and the correct description of when
BUT...
If that is truly correct then GotFocus() is your baby.

If what they are typing in needs to be complete and important, then you have one good choice and one necessary evil.
The good choice is AfterUpdate() which happens when they LEAVE that field -- and sometimes that takes a button or some setup to MAKE the user leave the field.
The necessary evil is if you DON'T or CAN't make them leave the field.
Then you need a Change() event that looks at the sting as they type it in, one character at a time, and does stuff when a valid string (or partial string) is completed by the keystroke just registered.
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Author Comment

by:Fordraiders
ID: 41713033
NICK67,
"The necessary evil is if you DON'T or CAN't make them leave the field.
Then you need a Change() event that looks at the sting as they type it in, one character at a time, and does stuff when a valid string (or partial string) is completed by the keystroke just registered."

This is exactly my intention.
the problem is the requery takes along time.

These folks want to see all the records before doing any searching.
I just need to reset the link once to initiate the search. and relink. somehow.

fordraiders
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Accepted Solution

by:
Nick67 earned 2000 total points
ID: 41713050
I would look at a little legerdemain then.
These fools want to see all the records first, and then see the bound subform, correct?

I would try putting TWO subforms on the form.
One right on top of another.
One unbound.
The other bound.

When they do the thing that signals they are done with the unbound one, you make it Visible = False and the bound one Visible = True.  And vice versa.

Then you aren't waiting on any kind of requery.
It's worth exploring for feasibility
Change() events are a bitch, and you REALLY want to avoid going there.
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Author Comment

by:Fordraiders
ID: 41713053
very good..razzle dazzle is my thinking also.
thanks..!!
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Author Closing Comment

by:Fordraiders
ID: 41713104
thnx
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Expert Comment

by:Nick67
ID: 41713140
Did that behave well for you?
It struck me as a good way to get after it, but that doesn't necessarily mean it was good :)
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Author Comment

by:Fordraiders
ID: 41713141
It was a good suggestion
Yes
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