Solved

Referring to a Control on a PARENT form

Posted on 2011-02-20
7
985 Views
Last Modified: 2012-06-27
See form frmPriceFind
In design mode you will notice two RED fields.

My objective is for these 2 red fields to BOTH show the field CostPrice.

The red field on the subform does not work!

me.Parent!CostPrice

How do I refer to the [CostPrice] on the parent form.



DerekImport--2-.zip
0
Comment
Question by:Patrick O'Dea
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
7 Comments
 
LVL 85
ID: 34939041
That's exactly how you refer to it:

Me.Parent.CostPrice

Except you don't do it from the ControlSource - you do it using the Subform's Current event:

Private Sub Form_Current()
  Me.CostPrice = Me.Parent.CostPrice
End Sub

0
 

Author Comment

by:Patrick O'Dea
ID: 34939071
Thank,

I am not quite there yet.
See attached.
I did what I thought you suggested but the form (frmPriceFind) crashes as you scroll through the records.
DerekImport.zip
0
 
LVL 85
ID: 34939109
You've bound the "CostPrice" textbox to a field named "CostPrice", and that field is not in the Recordsource of your subform. You'll have to bind that control to a Field that is present in the Recordsource of your subform.
0
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

 
LVL 85
ID: 34939115
BTW: I'm referring to the CostPrice textbox on the SUBFORM. In other words, you've bound the CostPrice textboxe on the SUBFORM to a field named "CostPrice", and that field is not present in the Recordsource of the Subform.
0
 

Author Comment

by:Patrick O'Dea
ID: 34939149
Thanks again LSM,

I am approaching the limits of my knowledge here.

Perhaps , if I forget the approach I have explained and merely tell you my objective.

I want to put a (readonly)field on the sub form that is equal to ;

CostPrice on Parent Form * Markup% on Subform.

What is the best way to achieve this?
0
 
LVL 85

Accepted Solution

by:
Scott McDaniel (Microsoft Access MVP - EE MVE ) earned 500 total points
ID: 34939167
Add a Textbox on your subform. Name it "txCalcPrice". The Textbox should be UNBOUND - that is, there should be NOTHING in the control's ControlSource property.

In the Subform's Current Event, add this code:

Private Sub Form_Current()
  Me.txCalcPrice = Nz(Me.Parent.CostPrice, 0) * Nz(Me.Markup_, 0)
End Sub

This basically tells Access that each time the Subform fires the Current event, Access should take the value of the Parent's form field named CostPrice and multiply it times the Subform's Field named "Markup%". The Nz() wrapper is the Null-to-Zero function, which insures that you don't get NULL errors (if the values of either of those root values were NULL, you'd likely get a runtime errors).

Note also that "Markup%" is a poor choice for the name of your control and can cause some frustration and troubles down the road as you must maintain and extend the application. You should use ONLY AlphaNumeric values for those names, so instead of Markup% a better choice would be MarkupPct or somethin of that nature.
0
 

Author Closing Comment

by:Patrick O'Dea
ID: 34939217
Thanks LSM,

That was a superb answer.

Your patience and descriptive powers are much appreciated.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Describes a method of obtaining an object variable to an already running instance of Microsoft Access so that it can be controlled via automation.
Access custom database properties are useful for storing miscellaneous bits of information in a format that persists through database closing and reopening.  This article shows how to create and use them.
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

717 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question