i'm doing the project of database by using IBM-DB2 and i need to use the visual studio 2010 to connect with IBM-DB2 and i have saw the comment that posy by someone. I follow all the code there and now i found some have a blue line.
Imports System.Data.OleDb
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'connection string
[code]....
I am trying to add items to my database. I can not seem to figure this out. The code I have executes without errors, but the items just fail to appear in the database. Please help! (and thanks in advance) The following is the only code I have in my form. I have tried the SQL command with and without the On the database side I can use this command to insert into the database through the 'New Query' option in vs2010.[code]
View 3 RepliesI am trying to add items to my database. I can not seem to figure this out. The code I have executes without errors, but the items just fail to appear in the database. The following is the only code I have in my form. I have tried the SQL command with and without the
[Code]...
how to update fields in an Access database through VB. What I'm supposed to do subtract the quantity of the daily orders from the inventory quantity. My textbook is a little bit vague at this point, because the only way it describes updating the DB is manually through the BindingSourceNavigator. I don't want to enter it manually, I want it to subtract the quantity from the orders table.
Public Class frmMicroland
Private Sub frmMicroland_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
I'm trying to write a method in VB.net so that when I click a button it queries the database and returns all the values which match a textbox which is located next to the button. I have no idea how to do this, I assume in the onclick method for the button I will need to pull in the value from the textbox, connect to the database and display the results to a gridview?
View 2 RepliesI have a database in the same workspace, I've tried to connect to this DB using this codes :
[Code]...
I got vb.net 2008 express and sql server 2005 and 2008 express editions whic I downloaded from microsoft website.Now I just want to connect vb.net with sql server 20o5 or 2008.I am using a connection string as
PubConnstring = "Data Source=RAMANSQLEXPRESS;Database=FirmTest11;Trusted_Connection=Yes"
'Create your connection object
Dim objconnection As ADODB.Connection
Dim strSQL As String
[code]....
Getting Error : [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified.
I'm having problems connecting to a database. I have sql server 2005 express installed on my PC, and i am using the following to code to connect to it.
Dim nwindConn As SqlConnection = New SqlConnection("Data Source=localhostSQLExpress;Initial Catalog=northwnd;" & _
"Integrated Security=SSPI")
[code].....
Ok I'm finally getting to put on big boy pants and have now moved beyond doing everything in Access (yay me).o here is the problem, can't connect to the Server. created a test button on my form, which is what I usually do with Access so Ican be sure everything is where it needs to be pointing.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String
[code]....
is it possible to connect to a database residing on a website (eg., MS Access)to get/update data.can we do it by a VB.net windows application.
View 9 RepliesDim con As New System.Data.SqlClient.SqlConnection
con.ConnectionString = "Server=iraq\sqlexpress ; Database=stats ; Trusted_Connection=True ;"
Dim com As New System.Data.SqlClient.SqlCommand
com.CommandText = "insert into users values('" & TextBox1.Text & "','" & TextBox2.Text & "','" & TextBox3.Text & "')"
[Code]...
There are new events happen when i adjust the connection string
con.ConnectionString = "Data Source=.SQLEXPRESS;AttachDbFilename=C:Documents and SettingsAdministratorMy DocumentsVisual Studio 2005WebSitesWebSite2App_Datastats.mdf;Integrated Security=True;User Instance=True"
show me error with com.ExecuteNonQuery()
I am a wannabe programmer but quite new, started with VB.net about 1 month ago.I write on this forum because It's the first time that I'm actually stuck. The problem is I cannot find a way to connect to SQL server database I have created and saved earlier on my HD using visual express 2010. I want to find a way to connect using code, not by click and drop. I just hope you won't find my issue too trivial to even answer it.The project is very simple, it just consists of a button that should connect to the db on click.[code]
View 9 RepliesI am using Server Explorer in VS2010 to connect to an Access 2007 .accdb database. I started getting 'No error message available, result code:E_UNEXPECTED (0x8000FFFF). However, my program runs from Debug and accesses the data.My connection string is Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:MypathDatabase1.accdb. I exited my project and created a new project and tried to add a connection. I could not connect to Access 2007 or Access 2003 databases (.mdb).I had to exit VS2010 and start it again before it started working again.
View 3 RepliesI am trying to pass some information from a VB form to my MySQL database. i have named all the textbox's the same as the field in the database and checked all my database fields and textbox names which are all correct. When i try to enter information into a form I sometimes get an error at the .executeNonQuery section of the code.
To test, I outputted the SQLStatement string to a textbox ( which pulled through all the fields from the textboxes correctly) then manually inputted the completed SQL query into the database and it worked. But when I try to do this in one go it seems to fail if there is too much text ( if i enter 'a' into each field it works). Are they limits to the size of the SQL query that can be passed from VB?? all the MySql database fields are set to text with no size limits.
[Code]...
Today is my first day trying to use Oracle databases in Asp.NET so I have no idea of what I need to do. I have added this code
[Code]....
I use VB.NET 2010 Express and Windows 7. Access is not installed.The code used to connect database password protected, is:
Public Class Form1
Dim cn As OleDb.OleDbConnection
Dim cmd As OleDb.OleDbCommand
The code is not working. I get this error: "Could not find installable ISAM".
NB: The error occurs only if the database is password protected!For unprotected database, code works without error.
My code is:
CODE:
It works for a database without password. But for a database with password and the string: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:DBB.mdb;Jet OLDB:Database Password=xxx"
I get an error:"Object reference not set to an instance of an object." Where wrong?
i'm fairly new to VB and am doing my second system through it. I am at the point where i want to link a combobox on my form to my access database so that when i click the dropdown arrow a list of surnames from the particular table in my access database appears.
[Code]...
First things first is this code remotely close to doing what i want it to do? I have to use an access database and i am familiar with this particular method of connecting to the database (sending any data to it is easy now). Secondly when the form opens (since the sub is called at load) i get the annoying old "object reference not set to an instance of an object" message.
I have a database(.sdf file) in ppc folder - Storage CardProgram FilesEmpEmployee.sdf. I want to connect this file with sql express 2005. I use this code
Dim Con as new sqlconnection
Con = New SqlConnection("Data Source= 192.168.55.101Storage CardProgram FilesEmpEmployee.sdf;Password = 12345;Integrated Security=SSPI")
[code].....
I have a problem in connecting in access database in vb .net.
View 1 Repliesi want to share my ms access database in other computer using LAN so that they have they same database. it is possible?? or any idea that is easier than this?.. my program is just like this. i created a program called ordering system.. the 1st computer will save the orders of the customer and the 2nd computer will retrieve the orders of the customer..
View 3 RepliesPublic Class Form1
Dim con As New OleDb.OleDbConnection
Dim dprovider, dsource As String
Dim ds As New DataSet
[code]....
The code above can access the database but it refuses to add,update,or delete any records..
we know that in Visual Studio, you can open a different kind of database: like: Access, SQL server or file, Oracle. is there any reference that you'v know on how to make that kind of program? i don't know where to start.
View 5 RepliesI am trying to make make a database in vb.net but I am having troble I want to have a form that a user could add and edit columns and rows to the tables in my database. Now a sevice based database would not work on my computer because i did not know how to set up the correct sql sever for vb.net 2008 so I used a Local SQL database i have tried to write some code to connect to it.
i will need further help on try to add the controls to edit the database but i will attempt that befor eposting for help. so here is my connection code i am trying to use a data grid to alow the data base to be edited.
also do I need to add the QNA table to data souces for it to be accessed ?[CODE...]
I think I already know the answer to this, but just to be sure, is there any way to connect to a MySQL database in VB?
View 4 RepliesI have a VB.NET application and I need it to be able to display rows from a MySQL database. How would I do this?
Update: Another thing that I could do is have the app get a PHP page from the site that shows the DB, and gets the page every 10 seconds or so.
I have a VB.net program connecting to an Access database. I use ADODB as connection (force of habit, I suppose). The program runs fine on all my machines, but on some of the client machines I get an error on the connection to Access. It is intermittent (sometimes runs without any problems) and happens at different places in the code, but always at the connection with the database. The program connects and closes connections quite a few times during a calculation.
View 4 Repliesjust a few questions. I have read through a of tutorials and snippets on access database.Connecting, updating, inserting, deleting, etc. My main question is this, I have not yet coded the connection to a database using code such as you all. I have always used the wizard to create my connection, table and view this also add the database to the project. Is it better to code the connection, or use the wizard? I have just started creating a program to feed company keep track of there inventory, right now I have 2 tables (feed, misc) both table contain the same things (code, description, price, and quantity). Any way I am getting off the subject, Write the code to connect to the database or use the wizard?
View 3 Repliesconnecting to an access database via lan
View 3 RepliesI am trying to write an application, that opens up a specific Access database, change the VBA module slightly, then close the database, saving the changes.Now my code works but it doesn't seem to close Access down very well, causing the following errors:Faulting application MSACCESS.EXE, version 12.0.6535.5005, time stamp 0x4bf5c550, faulting module ole32.dll, version 6.0.6002.18277, time stamp 0x4c28d53e, exception code 0xc0000005, fault offset 0x00047333, process id 0x13e0, application start time 0x01cc5dc3fb9eeb42.
View 1 Replies