Three Tables (Supplier, Product, PurchaseOrder) Within A MS Access Database
Jul 14, 2009
I have three tables (Supplier, Product, PurchaseOrder) within a MS Access database. I am trying to display Product table in DataGrid1, Supplier in DataGrid2, PurchaseOrder in DataGrid3. What I am trying to do is to choose a product, the total list of suppliers for that product appears in DataGrid2. Up to here works fine. Now I want to add the third datagrid so that for product #1, supplier #1, there are four purchase orders listed - default. Then if I choose product #1, supplier #3, there are two purchase orders listed, and so on. I can not find out how to work with the DataAdapters and DataSet Relations for three joined tables.
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Sep 10, 2011
I am having 3 tables in my DB Challans, Challan_Details & Customers. They are as follows
Table Challans:
Customer_ID (Related with Customer_ID in Customers Table) Challan_ID (Key) Challan_VchNo (Voucher No.) Challan_Date Invoice_ID
Table Challan_Details
[Code]....
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Jul 23, 2011
I am using visual studio 2010 with vb environment, I am connecting to a microsoft access database with 2 tables, one table per form, i can add a record and save it no problem, but when I update a existing record i receive the error, this happens on both tables, i am using the standard navigation buttons on the forms.
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Mar 2, 2010
I want to gather some data from some tables of an Access Database, I've found some solutions online, but I haven't found ways to fill a datatable, or dataset, and get each single field properly. Is it easier for me to get whole tables then get just the info that i want, or should I make a lot of searches in the access DB getting just what I want each time? Any code snippets for it? The Access Database is in an ACCDB file, with no user or password. I'm currently using VB.NET, but it doesn't matter if you answer in C#. [URL]
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Dec 30, 2010
I am in the middle of the creation of an application using vb.net. I have a database created in MS.Access which includes 7 tables. I connected this one with my parent program code. Now the problem is that I want to display the data from each column. I have 12 columns and 14 rows in my first table. How can I display data from one column in a Combo box?
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Dec 14, 2011
My problem is that I need to use a access database as a backend for my visual basic.net program.
The database will be accessed by a maximum of 10 users but I want to lock tables when a user is updating a record.
I am unable to use the SQL server at the company due to it storing sensitive information.
I have some basic knowledge of ado.net
I have read many articles but I can't find any articles that say how to lock a access .mdb file using Visual basic.net
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May 7, 2010
I have a database that has tables in it. Tables can be added to this databse programatically as well as the data that needs to be in those tables.I need to be able to query that database to get what tables are in it, place the names of those tables into a listbox so that when a user clicks on the name of the table, It will update a DataGridview with the data that is in that table in the database.I assume that you would need to build a dataset at runtime based off of what tables are in the DB, but i have no idea how to do this.
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Jun 5, 2011
I have a requirement to create n Access 2007 database & some related tables from my application at runtime.
I used to be able to do this ages ago in VB5 but having difficulties doing it in VS (VB) 2010.
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Apr 14, 2011
I have a system that gathers raw data from electronic devices, uses that data to populate a set of tables and allow uses to add/edit certain data and report on it. (Kind of basic right...NOT) There are 3 applications that I've written that use the same database.
One is a client that is on 3-4 user machines which allows them to see the data that has come in and work with it.
Two a Data-to-Information process program which takes the raw data, checks up certain information and puts the results into the database.
Third is a data gathering app that interfaces directly with the electronic devices and about 10 times per day places the raw data into a single table in the database.
If a user is in the 'client' application the data processing application crashes all over the place:
1. Database file already in use.
2. Unrecognised Database format
3. File locked exclusively by User on PC X.
Almost always on a different line of code and once when I made it retry over and over I managed to corrupt the database and had to Compact and Repair it to fix it. If no one is using the client everything works perfectly. On each client machine is a database with linked tables to the server machine. The machine that is running the Data processing is the server and the processing is using a database in a different folder that also has linked tables.
I have gone through all the recordsets in the Data Processing application and made sure that they are only using ForwardOnly and Read Only. They edit the data only with Insert, Update or Delete queries. I'm about to do the same in the Client Application as it seems to be the one that is locking everything all the time. The client machines haven't crashed on that error at all. Does it matter which version of Access is on the client and server machines? (All the clients have Access 2003 and the server has 2007 but the Database was created in 2003). Should I just convert the Access database to SQL server and be done with it?
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Apr 17, 2011
I have a form with 5 fields(inputs). When I entered data in the form and click submit, the data is entered into an Access 2007 Database(Table). All the set up (connection) is working because the data table is getting populated with the user info. However, I also need to search the database by entering a name in the name text box and clicking a button.
This is suppose to populated all the fields with information from the data base if the user exist. The search part is not working. I have no more hair to pull. :) Here is the code:
[Code]...
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Apr 15, 2009
I am looking to select all the tables from a microsoft access database. I just need the SQL statement i think, i can connect to the database that is needed.
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Aug 11, 2009
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
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Jun 25, 2009
I have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
ProductMstrTbl : ProductID, ProductName..
ProductDetailsTbl: ProductID, PurchaseDate, Amt, BalanceQty..
DataSet(ds) : ProductID, ProductName, PurchaseDate, Amt, BalanceQty.
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
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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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Jul 25, 2012
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
Following is example code.
Dim
SQLconnect As New SQLite.SQLiteConnection()
Dim SQLcommand As SQLiteCommand
CODE:.....................
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Oct 5, 2010
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
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Mar 24, 2008
I am a DCOM/Standalone Client-Server programmer who is now moving to eCommerce. I am building my first complete website for my wifes company and I have a design question for you gurus out there.
I looked at alternatives for shopping cart/product display and none of them meet my needs (e.g. ProStores). I wish to know which type of database you would use to have Many Products - Multiple Images per Product - possibly Multiple Vendors per product. I have begun a RDB using access as a prototype and I feel there was no faster method than inserting every product manually. Is there an alternative? And would you use a frame to display this data?
Would you store the images to the DB or a file reference on the host. I have begun with a file reference and truncated the path to only relate to where the file will reside on the host.
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Feb 10, 2010
I'm having an issue with trying to use VB.NET and the WebRequest object to post some cXML text and an attachment.I believe I am formatting the text of the data I wish to post correctly, as it matches samples Ariba has supplied. What I am uncertain of is if I am correctly using the WebRequest object to do the posting.I am setting the Method as "POST" and the ContentType as "multipart/mixed".I can successfully post cXML (using a ContentType of "text/xml") The message I get back from Ariba is "The document could not be parsed: Missing start boundary [ANCLS-741552]", however, as the following code shows, there is a start boundary.I have removed some proprietary data and replaced it with "...". Following the MIME text, I have included the relevant VB.NET code I am using.[code]
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Aug 14, 2009
I am trying to make a database, fill it with tables and then fill the tables. I am having problems connecting to the server and am really not sure why. I have posted this thread in two areas of this site because I was not sure what was the best area to put it in. [code]
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Jun 4, 2011
I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
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May 23, 2009
how to join 3 tables, I have the following statement but I'm getting a missing a (syntax error "operator error")
da = New OleDbDataAdapter("SELECT [S].[Scheduled Vege], [V].[Description],
[DS].[Task], [DS].[Task Date], [DS].[Completed] FROM [Scheduled] AS S
INNER JOIN [Date Schedules] AS DS ON [S].[SchedID] = [DS].[SchedID]
[code]....
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May 22, 2009
I've been working on a project for the last couple of days and have come across a problem that I'm sure is easy to resolve, but obviously not for me.
My dataset has a small crossed-out circle that's appeared next to the associated tables. This is preventing me from dropping tables onto the design of my form. Oddly the crossed circle only appears when I'm in the design of a form and not at any other time!
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Jun 5, 2011
how to store or create a table on my database using vb.net i'm having hard time to create a table on my existing dbase
here my code;
Dim ntable As OleDb.OleDbDataAdapter
Dim mtable As New DataTable
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Documents and SettingsjessprDesktopmydbasesample.accdb"
[Code].....
when i view my access dbase i cant see the table that was created on my code. how can i view that table?
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Mar 25, 2010
The following code creates a table in a mdb file.Dim tblName As String = Trim(Me.txbTblName.Text)
Dim Source = Trim(Me.txbLoadDB.Text)
Dim Pass = Trim(Me.txbPassDB.Text)
'Define the connectors
Dim oConn As OleDbConnection
[Code]...
I would like the table name be variable based on the textbox text but the following change creates a syntax error. Why is that?oQuery = "CREATE TABLE '" & tblName & "' ( ID Counter,Name TEXT(50) NOT NULL,PRIMARY KEY(ID) )"
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Oct 5, 2009
im a newbiw in vb and i really dont have any idea on how to display the tables in mydatabase into my vb.. should i use a datagridview or a combobox or something?
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Jan 4, 2012
I need to export the XML tables that i have added to the DataGrid to The new Access File (.mdb).
That is create the .mdb file and table in it qand then add the rows to it.
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Jan 12, 2010
I programmed in VB6 but with VB2008 I have trouble with this:I have a table called Clientes (Clients). One of the fields is called Provincia (State), but this is a numeric field wich references to a Provincias table.So, when I show the Clientes from, the Provincias field must use a combobox with the province name instead of a textbox with a number.
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Jul 5, 2011
How do I Loop through Access Tables?
What's the object I need to reference or connect to here?
''' <summary>
''' Return AccessDB as Dataset
''' </summary>
[Code].....
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Feb 17, 2009
i am trying to create an vb.net program to transfer or copy tables from my access database to an MSSQL DB.I got it working to copy from MSSQL to access but not the other way around.
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Aug 2, 2010
I am using Access DB.I want to create Temp Tables in My DB.What is the Syntax for Crate Temp tables in VB.NET??
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