I am getting errors when I try to use this adodb.connection and command in my code. The error I am getting is saying that the connection and command are not defined. I read online that depending on your version of vb that you might use the "OLE" connection instead of ADODB.
Imports System.Text.RegularExpressions
Imports System.Data.OleDb
Imports System.Data.SqlClient
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I'm trying to set up a database connection between an ASP page running VBScript, and I have found code to do this. However, the 'provider' attribute to the connection does not work. The code is below:
set conn=Server.CreateObject("ADODB.Connection")
<strong>conn.Provider</strong>="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.MapPath("mIndexDb.xls"))
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "Select * From mIndexDbTable", conn
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Just got this error in my vb2008 programs when trying to install on other computers (customers running XP and Vista). I am on a Win7 computer and are using MS Access 2007 databases. Up to now everything was just perfect - but now.... Tried to search the net for solutions, but got a lot of mumbo-jumbo I can not understand. what to do in order to supply a set-up program which works.
View 2 RepliesI have no experience with VS 2008 Express yet. But, I need to use it to make a small VB app for work that connects to an Access database and gets table values.I have no samples to work from. I keep getting the error: Type 'ADODB.Connection' is not defined. How do I create the reference to ActiveX Data Object?
View 2 RepliesWe have a VB.net application using both ADO.net and ADODB connections(both connecting to MS SQl server) Whenever an ADO.net connection throws an expection, we cleared the pools Now if any ADO.connection reopened and everything works fine Is there any way to clear pools for ADODB connection?
View 1 RepliesWe have had a visual basic.net (2002) service running on our server for several years now with no problems. However I recently needed to update one of the DB calls by adding additional fields to the SELECT statement. However, after adding the new fields, some of the returned data is coming back empty when I loop through the records. I have confirmed that the querystring is accurate and returns all of the data through a third party viewer, so I'm not sure what is going on.For example, in the code below, everything worked fine with field1, field2, and field3. However, when I add field4, data for field2 and field4 come back empty when looping through the results.
View 10 RepliesI have a classic ADO command which execs a sproc and returns a RecordSet. This is being executed from a VB.NET using the PIA.However when I .Execute the command, the result returned is not an ADODB.Recordset but a System.__ComObject.
View 1 RepliesI'm connecting to Outlook using Adodb. (ADO is a requirement)
With ADOConn
.Provider = "Microsoft.JET.OLEDB.4.0"
.ConnectionString = "Exchange 4.0;" _
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then using the sql
Select * from Calendar
which returns the Appointments, but with no start or finish times.
i wanna know how to retrieve data from a database using adodb connection in VB.
View 1 RepliesI want to access the methods of a dll that is not managed. Seems to be vb6 from my best guess and what I know about the program.That part I have managed to figure out. If I drag the x.dll to my bin folder, the interpreter wrapper is created, etc. I can access the methods in the dll just fine. The problem is the database connection.
For informational purposes: The dll is compiled for a vbscript .asp website. There are a few methods in the dll that just manipulate the input (which I can access error free- its how I tested the dll usage), but most make a db call to get or set or update, etc. data in the db. The dll expects an ADODB connection. The asp files are setup such as:
set DllObj = server.CreateObject("dll.class")
set connect = server.createobject("ADODB.Connection")
connect.open "SystemDSNName","user","password"
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It is using a DSN but just as easily could be a DSN-Less connection. My problem is that the dll expects the connection to be open and available to it. Can I make a ADODB database connection available and open for this dll in a vb.net asp.net website.Basically,I need to use the business logic and db data changes through this dll, but want to make the front end in asp.net.I know there is an ADODB namespace in .net somwhere and I tried using it but it was not doing the job and really, I did not quite understand how to.
i been creating a project for school that requires me to access a database for username and passwords
I have no problem doing this, but only if i "hard code" the location of the database.
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I am newbie in Visual studion 2010. May i know how do i setup the connection for a mdb file. Below is my code and i have encountered an error. the error message is "A first chance exception of type '[URL]' occurred in WindowsApplication1.exe".
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We have a VB6 program that uses an ADODB.Connection to establish a database connection and use its execute function to run SQL statements. The connection we have established is to a SQL Server. It has been working fine. Currently, I am trying to change the connection to a MySQL database. I changed the connection string and the connection is ok.
However, when it comes to running the execute function, it returns a runtime error 3246 - connection object cannot be explicitly closed while in a transaction.
I checked the connection.status before calling execute and found that it is open. When I use MySQL's server connections to check the status, I found that there was a connection before and after execute was called.
I encountered this same error whether I used MySQL ODBC 5.1 Driver or MySQL ODBC 3.51 Driver.
I am using VB6 for a (ADODB Connection & Record set) database program by connecting MS Access file (MDB). Can I make same program in Visual Studio 2010 by ADODB connection with MS Access (MDB)?
View 1 RepliesI have upgraded my VB app from VB to VB.NET and its working fine. Now, I want to convert my existing DB connection strings from ADODB to ADO.NET so that I dont have to use MS Access on every client which runs this app. Currently the VB app looks up into an Access db to get the server ip, username, password etc. I aim to hardcode these values so that I wouldn't need the Access db anymore. Any inputs on how this could be done?
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Any ideas on how I handle the following error thrown in the SqlDataAdapter.Fill as a result of the BeginTrans in the callee?
System.InvalidOperationException = {"ExecuteReader requires the command to have a transaction when the connection assigned to the command is in a pending local transaction.The Transaction property of the command has not been initialized."}
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Public Sub ExecuteTransaction(ByVal connectionString As String) Using connection As New OleDbConnection(connectionString)
Dim command
As New OleDbCommand()
Dim transaction
As OleDbTransaction
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I am having problem with Visual Studio 2008.... When i add the Microsoft ActiveX Data Objects 2.5 Library from COM References, and just run the blank form, it runs perfectly.... But whenever i declare anything related to ADODB like dim con as new ADODB.Connection, then after that it gives me error and doesnt run the project. A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll. After that if i comment that like (declaration), then error goes........ I tried uninstalling each and every component and VS as well but the error doesnt goes....i am using Windows 7 x64. The same is working in Windows XP x86 in my virtual machine..... as i am not able to start my project
View 2 RepliesI have something strange occuring. The following code works 100% when run in VB2008 Express.When compiled and run onthe same system, it generates the above message.The codebasically opens a Access DB and loops thru the db There is a progress bar (also tried a simplelabel) to display progress using AbsolutePosition.
dbInUse.Open("Provider=Microsoft.ACE.OLEDB.12.0; Data Source=C:SCDBv4DataSCDBData.mdb")
rsInUse.Open(OpenCommandSQL, dbInUse, ADODB.CursorTypeEnum.adOpenKeyset, ADODB.LockTypeEnum.adLockOptimistic)
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I'm new to VB 2005, the code below is actualy coded from VB 6 and just converted it to VB 2005. I'm having trouble with line that's on bold letters.In VB 6 this works just ok. By the way the error message is "Unable to cast object of type 'System.String' to type 'ADODB.Connection'." [code]
View 5 RepliesThe following VB code is from an application that I am developing. It establishes a record set by executing a SQL query on a SQL connection (ADODB). On the first pass through, the statement fails with an error 91, I trap it and re-execute the sub and then the statement works! The statement that fails is italicized and bolded below.
Private
Sub LBTasksAD_SelectedIndexChanged(ByVal
sender As System.Object,
ByVal e
As System.EventArgs)
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After finish my software, when I was try to run in other computer the error was: Don't possible to get the file or assembly 'ADODB, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f711d50a3a'...How the best solution for this error? Just to put the last adodb.dll in the application folder?
View 3 RepliesI am facing following problem with adodb Recordset
Error: Missing method 'instance void [WindowsApplication1] ADODB.Fields::Append(string,valuetype ADODB.DataTypeEnum,int32,valuetype ADODB.FieldAttributeEnum,object)' from class 'ADODB.InternalFields'
I am using 6.0 version of ADODB.
I compiled some VB6 code on my Win7 x64 machine and the result .exe will not run correctly on any other machine. VB6 code is just a new template .exe file with one button, a reference to "Microsoft ActiveX Data Objects 2.6 Library" and the following code in the button press event: Dim db Set db = New ADODB.Connection It runs correctly on my machine, but no others (even other Win7 x64 machines) (Update: I found TWO other users where it runs and one of them is Jeff Atwood!, but most machines have the same problem)
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i have an application. which is executed after every 5 mins. i have an open connection but it gives me the following error:
ExecuteScalar requires an open and available Connection. The connection's current state is closed.
my code is something like this. I have shown where all i am using ExceuteScalar()
Sub Main()
Try
connection.open()
cmd.ExecuteScalar()
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I have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
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im making a class.vb which has a sql connection. The class.vb will be used by all forms/windows on the application. So whenever a form needs to access the database, it will call class.vb.
This is the code in class.vb:
Public Sub Openconn()
Dim myConnection As SqlConnection
Dim connstring As String = "Data Source=192.162;Initial Catalog=db1;User Id=sa;Password=1;"
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but it gives error: value of type sqlconnection cannot converted to array of Sqlconnection.I just want a method that's useful for opening the connection and that is also useful when asigning to a command object.
I'm designing a web service in ASP.NET and VS2008, and am using typed datasets for retrieving table data. These work well and establish their own connections through their associated TableAdapter objects. Edit: I'm using VB, BTW!I am now attempting to run a custom SQL string using a DataAdapter and a Command object, however I need to reference a Connection object in order for the Command to work. What is the best way to handle this?hould I:a) Create a global connection object using Global.asax, retrieving the connection string from web.config? (I've been trying that one already, with not much success)b) Create a class-level connection object using the InitialiseComponent method, also retrieving the ConnectionString from web.config?c) Retrieve a Connection from one of the TableAdapters that I've already created in my typed DataSets?d) Something else I haven't thought of yet?
View 2 RepliesThis will happen at random, and I can always just catch the error and re-establish connection to the server, but I am confused as to why. When doing lots of inserting into the sql server, I only establish one connection that is public, instead of many little connections. I had my doubts on a public sql connection, but it's been running great, and I've seen no problems until this morning. Again, this random moment I hit an error that stated, sql connection state is broken. Is it bad practice to just accept this error, and when it happens, re-establish the connection?
View 7 Repliesi was using a pocketpc phone and i want to have a program it with a database.i am not familiar w/ the database of vs 2k8 because it was using a dataset i i dnt know how to connect the database of that...
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