VS 2008 - Application That Uses An Access Database To Fill Datasets
May 13, 2010
I have an application that uses an access database to fill datasets. My problem is that I have three related tables, when I add a new users to the customers table The parts table fills with data saved in the database with a cust_id of -1.
I discovered that this is caused by adding a part, not saving it and deleting the customer. I Can add code to stop the user from deleting a customer that has parts but I do not have access to the live database to delete the record that are incorrect.
Is there something I can do to delete the rows that have an id of -1 on the load statment?
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Nov 20, 2010
I am using VB 2008 & Access 2007 for windows forms application having typed datasets while creating connection to DB vb asks to store connection string so i did it now that i want to know where is the actual path of file where these connection strings are stored. b'cas after runnig a macro in Access Database i lost all these connections from Data Source Configuration Wizard Combo Box & also i am anable to create a new connection to Databases.I have tried to reinstall the entire Visual Studio couple of times .
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Sep 6, 2010
this is my code and it has an error "Command text was not set for the command object."Dim con As OleDb.OleDbConnection = New OleDb.OleDbConnection()
Dim sSql As String
Dim command As OleDb.OleDbCommand = New OleDb.OleDbCommand(sSql, con)
Dim adapter As New OleDb.OleDbDataAdapter(sSql, con)
[code].....
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Apr 8, 2010
i need to make a database application that can write/retrieve cells/datasets from/to a database i buyed a book in there was an example of how to create a database application while debugging i had the "Object reference not set to an instance of an object." error and it highlighted this code
objDataRow = objDataSet.Tables("KlantenTable").NewRow
now the problem is here i declare something later in the code i write to it
objDataSet.Tables("KlantenDataTable").Rows.Add(objDataRow)
[Code]....
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Jun 2, 2011
I've been having a problem adding a record to an Access database using datasets and da.update etc. I'm trying to create a simple program that displays the records of a database table in a series of text boxes. I've managed to get my next and previous buttons working correctly and my update button works correctly too. The problem occurs when I try to add a new record. I keep getting a "Syntax error in INSERT INTO statement" whenever I click my add button.
[Code]...
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Jul 11, 2009
I'm not sure, if this is possible, but what I would like to do is fill a DataTable with results from "SELECT TABLE_NAME FROM myDB.INFORMATION_SCHEMA.TABLES" and then fill individual data sets in a For Each loop. I'm able to fill a data table with the table names I want to populate, and I can update my SQL Command of the SqlDataAdapter, but when I try to fill the data set by using the results from the row, I run into an error that I can not convert a string to a DataTable or DataSet. Each DataSet is named just like the table name. The code is at home, so I can't paste all of it here, but hopefully, you understand, what I mean. A small amount of the code that I remember is below, and this is inside a Using block connecting to a SQL Server.For Each row as DataRow in dt.rows
tsql = new SqlCommand("SELECT * FROM myDB.." + row("TABLE_NAME"), mycon)
oleda.SelectCommand = tsql
oleda.Fill(row("TABLE_NAME"))
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Dec 1, 2010
I have Access database that I am connecting to as such:
Public dbE As DAO.DBEngine
Public db As DAO.Database
Public sql As String
[Code]....
While I can query for certain data, I want to know how to show a whole table in DataGridView. For example, I have a table called phoneNumbers and I want to show the whole thing in DataGridView3 instead of parts of it.
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Feb 24, 2010
i'm trying to make an application using ms access database. This application is for our class, simply to enter students data and institutions details. However, i got stuck with combo; here is my question and the application background?
I have a database named "StudentData" with table "StudentDetails" with "RECNO" which is Auto Numbered (and is Primary key) and a number of different fields which accepts Students Name, class, accedemic year and so on.
What i want to do with the RECNO is, i want to make a combobox which will be filled with the record number of the students, when i click on any number from the dropdown list, i want the other fields like the txtName (for students name), txtClass, txtACYear etc to be field with each RECNO they belonged to.
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Jun 5, 2011
I have 2 databases that I am working with. One is a compant customer database and the other is my personal call log. Now I am creating a front end for the Call Log. I was updating my customer list by Importing 2 tables from the customer database, a series of queries would erase all of my info, take all the data from the imported tables and move it into mine then erase the imported tables.
Im trying to accomplish the same in my VB frontend. I can connect and fill datasets from the customer database. I can erase my tables. How do I take all of this data from the newly created dataset and move it over to my empty tables?
[Code]...
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Dec 25, 2009
how i can connect to an access database and fill a combox with data of a column?
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Oct 15, 2011
I have an application that has an Ms Access 2007 DataBase which runns great if access is installed. Is there any code that I can use in vb that I would be able to run access with out installing it.
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Feb 3, 2012
Is it possible to use microsoft access database for Windows mobile application and save this mdb file locally in the pocket pc?because im trying to make an application to connect to mdb database but this imports seems to be not working.
HTML
Imports System.Data.oledb
oledb is not a member of system.data. why?
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Jul 12, 2009
I need to fill a web form using VB.Net Desktop Application. If a webform contains a captcha image to enter, will that can be shown in desktop application to enter and submi
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Feb 16, 2012
I'm using VS 2010, and I did a project using VB and a database in Access. The problem is that when I try to put that "application" on other computers, sometimes, is not working. I thought it can be because on these computers they don't have access, but on one computer, is running another app which is using Access and there is no Access installed. How can I check if my application requires Access to be installed or not?
Here is a example of how I did the connection:
Public AccessOLEDBConnString= "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & myfullpath & ";Jet OLEDB:Database Password=password"
Function getConnection() As OleDb.OleDbConnection
[CODE]...
And when I want to have access at the data I'm doing like this:
dim conn as Oledb.OledbConnection
dim sql as string
dim ds as Dataset
[CODE]...
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Feb 7, 2011
I have an Access table with a primary key. I want to add a row to the dataset and update. I get an 'Insert into' error.The fields in the Access database:
ID (primary key)
My code is as follows:
<code>
Private Sub btnCommit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCommit.Click
If inc <> -1 Then
[code]....
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Nov 24, 2010
Im currently making a program. It loads data from database fields into an combo box. Everything works so far, It just seems to be a mess. Do i need to have all the datasets and data adapters? or can i get away with just using 1 of each. It seems like im doing it wrong, and although it works it seems like a difficult and messy way of doing it.
Also i would like to assign the firshermenID to a variable depending on the fisherman name that is selected in the combo box. When button is pressed: id = fishermanID of the current fisherman (cmbFisherman.text)
[Code]...
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Sep 6, 2009
I need to fill an array with whole column from database table, so i have used reader to read the values from that column, but can not figure out how to put them into array (code below doesn't work) [Code]
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Dec 23, 2009
I'm using one Access Database and DataSet, BindingSource And Table Adapter. My question is: how to fill one listbox on my form with dates from one row from Database.
Look at the picture:
[url]
So listbox needs to have 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20.
How to to this, code?
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Feb 17, 2010
This is my first attempt at writing a console App that accesses data on my SQL server. The application is a simple process that would run each night to do some database cleanup.
Up to now all my dataset access has been through windows forms, and its really easy to bind the dataset to the code, by simply binding a dataset column to a field on the form.... BUT there is no form in the console APP!.
I know I can code tedious lines of code to define the dataset, and the SQL etc etc, but there has to a simple method like there is for forms.
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Jan 20, 2012
I have set the connection string of my dataset(typed) asData Source=MyHomeServerSQLEXPRESS;Initial Catalog=dbTestSharing;Integrated Security=TrueThis is going to be a client side application. I need to change the machinename in the connection string so it could connect with server.
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Jan 12, 2009
My understanding of databases (access and sql) is fairly limited, though i have got a couple of programs under my belt using access databases, not yet used SQL. I could however, work around to figure out a way to do what i'm trying. What i don't understand is the need for all of the components, so all i'm after is somebody who can take the time to fully explain these further to me, or point me in the direction of somewhere i can gather a full understanding.
My questions are, for now;
1. Why do we need to take a copy of the database, rather than dealing exactly with the database itself?
2. What differences are there between datasets and datatables, what is better for what and why?
3. What is the purpose of the data adapter?
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Jun 17, 2009
How can i connect my vb.net application to MS access database
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Dec 3, 2010
i want to connect access 2007 database with vb.nett 2008 application ?
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Jul 1, 2010
i have created an application that uses an Access Database. Each time the application closes i tell it to repair and compact the database. The problem is that because the database is stored in the program filesapplication_name folder it requires administrator rights because of UAC. What should i do ? Should i store the database somewhere else where no adminstrator rights are required ?
[Code]...
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Nov 3, 2009
Is it possible to write to an access database that is an MDE, from a .net application?
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Feb 1, 2010
I've a created a website using asp.net (vb). For data I used ms access. I am developing a window application in vb.net using visual studio 2005. Now how can I access and use my website's ms access database in my window application.
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Aug 12, 2009
My application has Binding source to an acess db, how can i distrivbute the application and db as one exe file?
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Jun 8, 2012
I am developing an application on VB.NET 2010, I am planning to make an online activation system, the idea behind is that Whenever someone installs my application, the application presents user an activation form, user will be entering product key, name and email address, and then system will establish a connection to a database which contains all the keys on WEB. So how should I make an efficient program to get rid of that.
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Jan 30, 2010
I'm trying to get my application to read to and write from an Access database. I am running Windows 7 x64.
If I disable UAC, I don't the error. If I have UAC enabled, then the error occurs. Here is a screen shot of the error:
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Jun 28, 2010
Windows form application Access database Is it best practice to restrict user entry via keypress event
then validate all info entered & show error control message
or use dataset partial class columnchange as cannot restrict user entry here Could an experienced programmer suggest best way i actually prefer restricting keypress then loop through and validate all entrys
but want to be right
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