?
Solved

memory variables and form display questions

Posted on 2013-02-07
3
Medium Priority
?
239 Views
Last Modified: 2013-02-08
Hello Again
Thanks so much for all the help getting me up to speed with access. I do have two questions which I hope can be answered.
1. How do you store memory variables in access. I remember DBASE III had a "STORE MEMORY TO <filename>" where the information was stored on a file  which could be retrieved at a later time or date.

2. When creating a form using a table that has two fields in it. If I want to display both fields yet only allow change on one of the fields how would this be done? In the access form?
0
Comment
Question by:PawloA
[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
  • 3
3 Comments
 
LVL 74

Expert Comment

by:Jeffrey Coachman
ID: 38865899
<I do have two questions which I hope can be answered.>
The rules of the site only allow one distinct question per post...

There are many ways to store variables, ...also "Scope" needs to be considered.

In a Sub you can do this:

Dim lngCustID as Long
...to "create" a variable to be used only in that sub

Then you can load it from a form control:
lngCustID =Me.txtCustID
0
 
LVL 74

Expert Comment

by:Jeffrey Coachman
ID: 38865919
If you nned a variable to "persist" throughout a "Form" (Module)
then you can do something like this( In the Form's code Module:

Private lngpvtCustID as Long

Sub Form_Open(Cancel As Integer)

    lngpvtCustID =me.txtCustID
End sub


Then you can also grab this variable in another sub in the same form:

sub YourButton_Click()
msgbox lngpvtCustID
end sub
0
 
LVL 74

Accepted Solution

by:
Jeffrey Coachman earned 2000 total points
ID: 38865944
To make a Variable persist through your entire application you have to create a Code Module.
Then do this:

Public lngpubCustID as long

Then you can set/Get this value form anywhere in your app..

But therein lies the danger.
You really need to have one place in your app where Public variables are set and reset, otherwise you will tie yourself in knots trying to figure out what the value is and how/where it was set...


In any event...
None of these variables will persist when the DB is closed though.

To do this you would load the values into a table..
...but this is another topic entirely...

Hope this all helped...

Lets see if other Experts can flesh out (or correct/clarify) the skeleton I sketched here...

;-)

JeffCoachman
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Preparing an email is something we should all take special care with – especially when the email is for somebody you may not know very well. The pressures of everyday working life stacked with a hectic office environment can make this a real challen…
Code that checks the QuickBooks schema table for non-updateable fields and then disables those controls on a form so users don't try to update them.
Using Microsoft Access, learn some simple rules for how to construct tables in a relational database. Split up all multi-value fields into single values: Split up fields that belong to other things into separate tables: Make sure that all record…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses

801 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