Linking Two Subforms

Oct 25, 2006

Hi, all--

What is the simplest way of linking two subforms so that selecting a record in one subform will result in specific related records in the other subform?

THe subform where the initial record will be selected is linked to the main form but the other is not and has no fields in common with the main form.

I do have some VBA experience, although it has been a while.

Thanks!

Paul

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Linking Two Subforms

Apr 30, 2005

I’m truly sorry about posting a question that probably should be found by searching this forum. However, despite some ambitious, but not very fruitful, efforts to locate answers to it, I’ve decided to start this thread anyway.

I’ve used a sample database to create a contact database. The sample database contains a table called “Samtal” (which in English should translate into something like “calls”). The idea is that every contact in the database has a 1:N relation to the samtal table. It means that the user continuously can update the Samtal table for every phone call made to different contacts.

Every contact has a unique contact ID, which links the two mentioned tables together. Every entry in the Samtal table has a unique Samtal-ID (called “samtalsnummer”) as a primary key.

In order to easily access, administer, create and modify different entries in the Samtal table, the form “Kontakter” contains a button called “Anrop”. Clicking on this button, a new form, “Samtal” opens (taking the contact number as input from the active contact in the form from which the button was pressed).

The Samtal form contains two subforms (“underformulär” in Swedish):
1. Listing all the entries that are found in the Samtal table for the active contact’s contact number.(samtaslista underformulär)
2. Stating the content of the phone call. (samtal underformulär)

Very conveniently, the user can scroll through the list (in the first subform) and by picking/marking a certain entry, be able to see the content of the particular call (in the second subform).

My idea was basically to copy the Samtal table’s and form’s architectures to create a table for addresses, and in this way be able to assign every contact an arbitrary amount of addresses (and in this way keep track of old addresses as well).

After have done this, and even added an “Adress”-button in the Kontakter form. (Note that every address entry is to be assigned an “address type” collected from a predefined table called adresstyper.) Somehow, however, I can’t get it work at all. Gatuadress (Street address), Husnummer (Street number), Postnummer (Zip code) and the other fields found in the second subform (“adresser underformulär”) aren’t working.

My simple question is why it isn’t.

Any ideas, literature suggestions or comments are highly appreciated as I’ve been struggling with this for over two weeks. I’m attaching the database to this post.

Thanks a lot in advance!

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Linking Subforms

May 6, 2005

I am sorry if similar questions have been asked by others but my understanding of subforms isn't good enough to apply other answers to my problems.

Essentially I have two problems. My situation is that I have a form with 4 tabs. Two of these are just straightforward tabs which have certain fields that must be completed. Originally I only had two tabs and then you would click on a button to open a different form. Before opening it qould test that the key fields had been completed and then open the form. I have now added this to the original form as a subform for the third tab. I suspect it may be rather obvious but I don't know how to apply the same logic so that I cannot switch to this tab until the key fields in the previous two tabs have been completed.

My second problem has to do with my understanding of how subforms link I think. My fourth tab is also a linked subform. When I have data in the first two tabs this form is visible but when there is not data this form is not visible. Why might this happen with this subform but not with the subform on the third tab which is currently always visible regardless of the data?

I hope this is clear but if it's too abstract please let me know.

Many thanks

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Aug 4, 2005

Hello,

We are a theatre company attempting to link our bookings and contacts tables in a form - subform which can be viewed in chronological date order. We are having trouble establishing a one (contacts) to many (events) relationship and setting up the forms as such. What are some easy steps to ensure that both forms are visible, functional, and appear in the order we require? As of now, we only have the two separate forms built (along with the corresponding tables). The relationship field, we presume, is the organization contact itself, and the main form would be the events with the contact appearing as a subform at the bottom of the page.

Thank you for your help!

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Another Question On Linking Subforms...

May 6, 2005

Hi,

I tried searching for an answer, but with no luck.
My problem is with linking master/child forms.
What I want the subform to do is to show me a list of records that have the same "GroupID" as the master form. To do that I set the link properties to:

Link Master Fields = "GroupID"
Link Child Fields = "GroupID"

This works perfectly fine! Now I wanted to take it a step further and add another link so now I have this:

Link Master Fields = "GroupID;LastName"
Link Child Fields = "GroupID;LastName"

Now what (I figured) Access does is show me the records where the "GroupID fields match AND where the LastName fields match". But what I really wanted was that it displays the records where the "GroupID fields match OR where the LastName fields match".

Can anybody suggest something?

Thanks
Luke

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Linking Subforms 2 Issues 1 Topic

Aug 6, 2006

I have found a lot of answers here to my multitude of questions. However, I am having two final issues. Both happen to be in my subforms.

Issue 1
I have a subform called Student addClass Subform and in the ON CLICK event of the save buttom it runs the following code

DoCmd.DoMenuItem acFormBar, acRecordsMenu, acSaveRecord, , acMenuVer70
[Forms]![Student_Classes_Subform].Requery

It Should requery a subform called Student_Classes_Subform which is in a main form called Students however it constantly tells me that is can't find that subform. I had this working before and made a few changes while working on issue 2 and some how messed it up and can't figured out what I did. Please Help!!!

Issue 2
In my main form called Students I have a 2 subforms that I need to link in the ON CURRENT EVENT I want to link Student_Classes_Subform to
Student ClassNTinfo Subform. Currently there is a relationship between the fields NT_ID. I assume that I need to pass a variable out of one subform to the main form and then back into my other subform. For the life of me I can't figure out how this works since the data is coming from two different tables. All of the examples I have scene pull from one table. Any help is great!

P.S. I am attaching the database and linked tables that will help where my explanation didn't.

Cheers
-andy

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Forms :: Linking Two Unrelated Subforms To Main Form

Feb 5, 2014

I am trying to link two unrelated sub forms to a main form so I am able to query data all at once and make a report that displays all this data at once. I do not know if this is possible. I will tell you to the best of my ability about what I have going on.

My main form is a shift report. The primary key is a auto number ID. The rest of the fields are date, name, shift, vehicle. etc.

The first sub form is area attendance. Field are as follows auto number ID (primary key), report ID(which comes from the main form, linked), the area, and the area attendance.

The second sub form is the event log. Fields are as follows auto number ID (primary key), report ID(which comes from the main form, linked), time in, and events.

My relationship now is simply primary key from the shift report (the autonumber) going to the first and second subforms report ID's.

Problem is I can not query two distinct subforms like this (I realized).

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Users are too lazy to check whether a patient record exists or not. Consequently, we have a number of duplicate records that I would like to merge.

My problem is finding a way of linking 2 subforms to a parent that is not based upon a query.

On the parent form, I want two Comboboxes called 'Patient_to_Keep' and 'Patient_to_Discard'.

The two subforms called Frm_DUP_Patient1 and Frm_DUP_Patient2 should then display the data of the respective combo boxes.

Once I have this working, I can write the necessary code to compare and update the data as required.

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Feb 4, 2006

I forum could someone tell me:

I have an unbound form on that form I want to put three sub forms one on a products table the other on a course start dates table and the link table that joins the other two together. all three are related to each other with Pk/FK links.

When I try to link them it says you cannot link items on an unbound form.

regards in advance
Peter:eek:

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Jun 28, 2007

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I am using recordsets to step through a table that contains a field with the names of the subforms.

Depending on the code, I want to make visible or hide the subform for that particular record.

ie Table has 5 records with a field called subForm. the values are as follows:

Record1: Field1: Value="Yes" Field2: Value="subForm1"
Record2: Field1: Value="Yes" Field2: Value="subForm2"
Record3: Field1: Value="Yes" Field2: Value="subForm3"
Record4: Field1: Value="No" Field2: Value="subForm4"
Record5: Field1: Value="Yes" Field2: Value="subForm5"

When I step through the table if the code finds "No" in Field1 then id makes the subform referred to in Field2 invisible and if it finds a "Yes" it makes it visible.

Can anyone help me with this?

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Feb 18, 2005

This is a question from yesterday that a member had helped me out with.

I have additional questions while I am waiting for response from him. If anyone of you can help, I would really appreciate it.


1. How can I make a form that gathers information from multiple tables?
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Aug 12, 2005

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Sep 18, 2005

Heya --

So if I haven't scared everyone away with the post's title, maybe someone out there can help me. I need it.

I have a many-to-many relationship with the following tables:

Companies
CompaniesProjects
Projects

I also have a query with the following:

CompaniesProjects.CompanyId
CompaniesProjects.ProjectId
Projects.*

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Any help would be _greatly_ appreciated. I've been slamming my head against a wall with this for two weeks.

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Nov 29, 2005

Hi,
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I want a form in which you choose a product, then you see all the descriptions along with it. In this same form I want to be able to add a description, e.g. by pushing a button NEW. After that user enters description form etc. After returning to the mainform, a new record must be automatically added to the ProductDescription table and ofcourse a new record has been added to the Description table. I thought I would use subforms to realize this but it isn't working..:( . I have tried so many things that I dont know anymore what to do, i am totally confused. I know how to program in VB and ACCESS, but for now i don't see it anymore. Can someone please help me with this?

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nelleh:rolleyes:

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Hello,

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Hi there.
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This part works fine.
The second sub form uses a similar requery function to the first one. The only difference is that the query for the second sub form is based on a reference number from the selected record in the first sub form.
If I put the function call for the second sub form in the on click of the first one all is well and the second sub form displays all records with a matching reference number.

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I know this is happening because the first sub form has not loaded fully and so the second sub form cannot get the reference number. I just can’t find a way to make the second sub form display the correct data when the main form loads.

I have tried calling the requery function for the second sub form from most of the events on the main form and many of the events on the first sub form but to no avail.
I also tried putting a meaningless sub form at the bottom of the main form and putting the requery function for the second sub form in the on load event but that was no good either. This surprised me as until that point I was assuming that access was loading the sub forms sequentially from top to bottom.

Can anyone tell me how I might determine the point at which the first sub form has been loaded so that I can get access to the reference numbers needed for the second sub form query. I would prefer not to use a timer for this as there is no way to determine the maximum time it will take access to load the rest of the data but at present it looks like the only option left.

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Please help !

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