Linking Individual Fields Between Two Tables In An Access DB?
May 12, 2010
Im not too sure if this is the correct place for this question, but I couldn't find anywhere else..Heres what i want to do. I have two tables in an Access DB. TableA and TableB. Each Table has only one column called Picture, and that column is filled with the names of pictures (picture1, picture2, picture3, etc)
Thing is, that The pictures in TableA have equivalent pictures in TableB. They are not named the same, but the pictures themselves are the same i.e.: TableA Picture1 = TableB Picture3, TableA Picture2 = TableB Picture5.
What i Would like to create is a form that has two datagrids, or Listboxes populated with the data from each table. One for TableA, One for TableB. When the User selects a picture from one of these controls, The other control must show which picture the selected one corresponds to (if i select TableA Picture1, TableB Picture3 becomes selected showing that they match)
I think that most of the work will be at the actual DB, somehow linking each and every field, maybe a one to one link between fields/cells in the DB, then in VB calling that one record that was clicked on, seeing what relation it has to the other table,
[Code]...
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Aug 5, 2009
I am trying to write an Afterupdate Event code that will automatically update one field if a corresponding value is selected in the other field
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Oct 22, 2010
I have used VB (versions 2 - 6) through many years; however, I am crash-course training myself into the VB2008 / VB2010 world kicking a screaming. I would like suggestions as to what SQL database access method should I focus more on in my learning process without making me feel that I'm a million years behind. I know I have WinForms where I can create a datasourse and drag / drop fields or tables on a form to create a grid (not really what I'm looking for).
My trouble isn't so much designing the form but in how I access the database. Theres XML, LINQ to SQL, ADO.NET, and many other methods. Not only do I need to grasp these methods quickly but I also need to know what type of projects I should create. What I mean is...I was thinking that I would design a WinForm app; however, I see that there are WPF apps and others to chose from. This is getting deep. I know it depends on the project that I'm working on. My plans are to write an app based off of either an SQL Express 2008 or SQL Server 2008 database. This first app will be standalone for now but may later become multi-user. I know I'm far behind on my learning curve coming from VB6. I have read a bit on VB2005 / 2008 / 2010. I own
both VB2008 and VB2010. I use VB2008 at work. I know ADO.NET is still alive but by what I read online, it's a dying method and is only kept for backward compatibility. XML and LINQ to SQL and other methods are all pretty new to me.
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Nov 28, 2010
im new on SQL databases and im working with the "Northwind" sample from microsoft there are 4 tables with this realtion Customer->Orders->OrderDetails->Products.i want for every customer to list the products ordered... how can i link those 2 tables?
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Jul 20, 2009
I'm not getting this at all I suppose. I've tried so many variations to split the lines into individual fields and I still cannot get it to do what I want.
I have to get lines from a sequential file which read like:
CODE:
And load them to a listbox like this:
CODE:
With the ID # padleft(10, "0") and the commas eliminated, and only the Last Name, First Name and Middle Initial showing.
This is my mess of a code (it is just one of many variations)
CODE:
I've got the ID field right but the rest just shows up as it is in the file commas and all.
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Sep 10, 2010
I have a Database with the following tables, PolicyHolder, Beneficiary, FinacialDetails, Gender, Nationality, Relationship, Income. They are all linked by ClientID primary key of the PolicyHolder table.
When i'm adding my data in the Beneficiary table using a DataGridView i get an error when im adding the second entry saying - FK ClientID already has a value and this value cannot be duplicated. I want the FK ClientID value to be saved on every record i enter under Beneficiary.
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Mar 12, 2009
I have never worked with datagridview before. I need to know how to use it so i can use it in my (calculator) program. I would like to know how to make columns, rows, linking the cells in the table/grid to textboxes so values entered into the textboxes (on the calculator) after pressing save goes straight to the table.
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May 27, 2012
I'm trying to create a table in Word using data from a table in Access. There are four fields in the access table that I need. 3 fields are text which I can populate the Word without any issues. However the fourth field is a memo with >255 characters.I'm struggling to come up with the proper code to allow me to populate the Word field with the memo data that has more than 255 characters. The code I have so far is listed below. But when it hits the memo field, it crashes on the line I marked with **. I know it's not text, but I've tried many different field types, but nothing has worked so far.[code]...
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Apr 13, 2010
I have a data grid view on a form which is currently filled with the following query:
SELECT TopicCode, TopicName, NoOfCourses, Lev FROM tblTopics WHERE TopicCode = @TopicCode1(Where I obviously pass a TopicCode parameter)
However, I have added two custom columns to the data grid view, and the values that i want be in here are in a different table than the query i'm using to fill the data grid view.is it possible to "nest" queries? which will allow me to select fields from two different tables?
Example:SELECT TopicCode, TopicName, NoOfCourses, Duration, Lev FROM tblTopics AND SELECT StartDate, EndDate FROM tblSubscriptions WHERE TopicCode = @TopicCode1
Possible? or not?
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Jan 12, 2010
I have two forms receipt and payment. Both are having almost same fields.e.g. entryno, date , partyname, amount. Should I create two different tables for receipt and payment or keep data in single table with additional field 'TransactionType'
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Jan 13, 2011
How can I use dynamic fields in LINQ in the PART OF THE where query? I mean that I want to write where x = *dynamic fields* I want to do the select query in all of the tables that are in the dataset, not on one datatable.
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Nov 28, 2010
Im new on SQL databases and im working with the "Northwind" sample from microsoft. there are 4 tables with this realtion Customer->Orders->OrderDetails->Products. i want for every customer to list the products ordered... how can i link those 2 tables?
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May 2, 2012
Using Visual Basic 2008 express, I would like to access a database with 2 tables, one table (useraccounts) which has Users and Password and ID, and the other table which has information (linktable). Basically I would like to do a login form which reads from the table useraccounts and be able to create new users which will write into the database.
Another is that I have a form with a number of links which I would like to store in the table 'linktable' and it basically just gets the links from the table and straight to the form where it is used. I have tried using access or the .mdf files that visual basic has but I have been unable to find an answer for either.
I wouldn't mind using either access or the .mdf file for the database, I would just like it to work. Overall I am trying to get:
Login form which reads from database table 'useraccounts' and has a new user feature
Just a form that can read / write to the database once the save button is clicked.
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May 11, 2011
I'm looking for a way to combine a field from multiple tables into a single field in a new table. Because the data populating the tables is coming from an outside source, I would prefer not to change the data in the original files. I have a separate table for each year because this is the way the data is provided. The field layout is not consistent from year to year, but each year there is a field that we'll call "score." I'd like to pull the field "score" from each year's table and have it populate a "score" column in a new table along with the year of the data so that all the years' scores are in the same place. Is there a way to do this using Visual Basic + Access?
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Mar 25, 2009
I have a 5 tables in my database and i want to access all my tables togather at a time.e.g.I have a code for one table i.e. rs.Open "select * from Group_info", con, adOpenDynamic, adLockBatchOptimistic. instead of Group_info table i want to access 5 tables also as Login_table,User_info table,group_name table etc. How i do that
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Mar 19, 2010
I am teaching myself VB, and when I first managed to do what the post title says, I ended up with a combo box filled with values from the column of a table in a linked db. But later when I updated the VB Form and tried linking the database on this revision of the project,and then added the details to the combo box where to read the values and run the form, nothing displays in combo box. Here is what I did:In the IDE of VB, I went to "Add New Data Sources" -> Database -> New Connection -> Browse -> (selected filename of db) -> Next -> Select "yes" (put in current project) -> Next (save connection name) -> tick boxes for tables in database to connectThen in combo box control properties i set the Data Source (Other Data Sources -> Project Data Sources -> (dataset name) -> Table Name
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Nov 22, 2009
I want to connect to a database Ive created using Microsoft Access 2007. Im using Visual Basic 2005. I also want to be able to perform basic tasks such as searching.
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Nov 16, 2010
I'm a bit of a newbie to using VB in Access, I have a database in which multiple people need to work specific problems which are separated into records from a form. What I want to have happen is that everytime a person changes the cboStatusName combo box to "Done", it will populate the current time into the DateCompleted field, and then it will lock both of these. Below is the code I'm trying to use through an event.
[Code]...
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May 17, 2011
I'm trying to link a datatable from one access db to another access db but i get this error:
Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.[code]...
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Oct 22, 2011
I have already linked the file into the form, but can't figure out the code to write for buttons to beable to view the first record in the database in the file that i linked. I need to make buttons to find the first record, last record, previous and next record. Then I also need to code buttons to add, change, and delete records.
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Jun 4, 2009
I made a DLL that is a UserControl that has a TabControl with one TabPage on it. On the TabPage is a Panel & on the Panel are some controls.how can I access the individual components of the UserControl from the application that is using the DLL? I have added a reference to the DLL & can add the UC to a form, but I would like to have access to the child controls of the UC, ie. change the text of a Label that's on the Panel. Do I need to do something when I create the DLL to cause those controls to be accessible?
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Oct 24, 2009
I have an access database with one table and 4 or 5 different fields.
All I need to do is be able to be able to use a loop to read the values in a specific row and column and store it in a variable (or array).
I don't need the code for the loop or anything, just the syntax for reading the value of a specific row and column in a table to a variable.
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Jul 14, 2010
I have created some tables in 2007 and would like to use visual basic to create an interface for a database. I would like to add, edit, and view my records and maybe create reports.
Does anyone know of any online tutorials which would help me to do this or could anyone offer any guidance.
I look forward to any replies.
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Apr 22, 2010
I am using the code shown below to compare two Access databases with two fields each and write the results to a third Access database. I am getting an error at the "Do While DMReader02.Read = True" line: "Invalid attempt to call Read when reader is closed." Why would the reader be closed at this point if I am using different DataReaders in the two loops?
Imports System.Data.OleDb
Partial
Class Form1
[code]....
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Jul 21, 2009
The Calendar control (the Month Calendar) control in VB 2008. I am creating an attendance timesheet and I want the Calendar to color each date differently like e.g An employee Paul is selected from a list.
On the calendar I select the month. (The dates are not supposed to be selectable). Then lets say it is June. He is late on the 1st and the Second, so those days are supposed to be colored red (the whole block). Let's also say he is absent on the fourth and so I want that date to be coloured black. How do I do this? I tried finding a query and my friend told me that this functionality is not available in the current control and that I was best off making my own control (???).
I have tried selecting specific dates and bolding them (there is a function that allows this) but I am stumped trying to find two different ways to differentiate colours. Second:- How do I link a calendar with an Access Database?
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Feb 1, 2011
After trawling around the net for a good few days, i decided to post something here.
Basically, i've got a problem linking a data source (Access 2007 database) to a VB 2008 project.
I've broken it down to having a problem dragging a table onto my form, when it generates the nav bar, it says "0 of {0}", and the table is empty (despite the actual database containing values)
However, this happens only at home, at college it works totally fine. The only difference that's obvious is that i'm using Windows 7 at home, and Windows XP at college.
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May 4, 2011
I am working on a project that requires us to create a bracket type tournament and I am now stuck. I linked my access database to my project, and have 32 labels (lbl1-lbl32) and I cannot figure out how to integrate the labels to read from my database. It can be random or not, I just cannot get the labels to display the names of the fighters.
After the labels are integrated, the next coloum of the bracket has a link that opens a new window with each of the fighters match results, does the link have to include anything particular to display the attributes from the database?
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Jul 11, 2011
So I have a code atm that has 2 combo boxes, one to select the make, then it will enable the model, I have 3 model choices, here's code: [code] Once I have selected my model of the car, it takes me to that specific form with a picture of that model, I then want to display individual parts, with individual prices that will add up in a text box above.
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Oct 14, 2011
I am new to VB.Net and was using VB 6.0 for the last 10 years. I am having some difficulty in accessing fields and changing these.[code]...
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Mar 17, 2012
I'm trying to pull all records and fields from a MS Access table. My fields are: numOne, operator, numTwo and result. I'd like to display those fields in a listbox as the following output: 1(numOne) +-/*(operator) 2(numTwo) = 3(result) or simply 1 + 2 = 3. I was able to get some coding going. The problem that I have is that I'm not finding a way to add the fields on the same line, since I can find the right syntax to have all fields added together.
Dim ConnString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:UsersLeo DaCostaDesktopAPUVB AdvancedDaCosta Weeks 5-6MathOp.accdb"
Dim mySelectQuery As String = "SELECT * FROM MathOp"
Dim myConnection As New OleDbConnection(ConnString)
[code]....
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