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 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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Public Class HotelReservation
Dim currRec As Integer
Dim totalRec As Integer
Dim dt As New DataTable
Dim cmd As New OleDb.OleDbCommand("SELECT * from Reservation", conn)
Dim da As New OleDb.OleDbDataAdapter(cmd)
Dim ds As New DataSet
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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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We 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'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'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 RepliesWe 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 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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I 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 RepliesI 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 written a simple VB.NET program that connects to a MS Access Database. This program runs in Windows 7 XP Mode, but does not run properly in straight Windows 7. Somehow, the Windows 7 does not connect properly or read the MS Access database data properly with the DataAdapter.Fill method. I have dual monitors, so I can run the identical program side by side (one in Windows 7 and the other in XP Mode) - one works and the other doesn't (it doesn't crash, it just get "nothing" from the database when accessing - acts like it's not connected). Has anyone else run into this, or similar, problem with VB.NET and MS Access connectivity?
View 14 Repliesis there anyway u can make a ".exe" luanch without really knowing where the "user" u send it to have it installed. Well im talking about "World Of Wacraft" a game u install just like any other game.I wont this to luanch but i the users wich use this have the file/folder placed different places.Is there anyway to find this if it have been installed ?Ive been looking around but only found codes wich dident really work
View 6 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 think its better if i attach my files for you understand what i wanted to happen in my program.
We are now in our finals and for our project we need to make a program that shows connection of database(sql or access) and vb.net so dont mind if it has a problem in design or anything bcoz the objective of this project is to show what we've learn in our subject IT Programming 1 (vb.net)
I dont know what to do in this part of my program. what to do first? why is it attaching zip files is not allowed?
OK, So I am making a program in Visual Studio 2010 Ultimate. I have gotten all the forms and everything correct. Except the text color. I need to make it so when they reach the end and it says if they got it right or not, that the program changes the textbox's text color. The code I currently have is when form2 = the first word in the spelling test. Form2.textbox1 is the first place where the user puts the answer. Form1.Textbox1 is where the user puts the original word.
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If Form1.TextBox1.Text = Form2.TextBox1.Text Then
TextBox1.ForeColor = Color.Green
Else
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This code does nothing and there is no errors. P.S. If you need a copy of the program, you can download the solution here: [URL]...
I started working on a big project for like 5 mins ago. Then suddenly I figgerd out that I don't know (AT ALL) how to make a program that can:
- Connect up to a server (which will be my secound computer)
- Chat
- Make groups
- Etc
the login system is simple but the client server thing is another story.So basicly what im asking about is: How can I make a program that connects to a server (this should not be local).
Im currently doing a small programme of a register system. I need to add a new group box filed with a few textboxes and a couple comboboxes for each entry in a access 2010 database. for example if i had someone called bob in my database with his details i would like the GUI of the VB app to add in a new textbox for the name, a textbox for the address ect in a set order, this needs to work for multiple entry's so the textboxes ect don't overlap but be placed neatly below the added textbox.
View 1 RepliesI'm making an program to searsh trou a access db with a combobox it neet after selecting to show the wricht value in a textbox and a numberupdown
i have tried to load al data in combobox but when i select it nothing happen
"Error 1 Overload resolution failed because no accessible 'Fields' accepts this number of arguments. "
I have defined my ADODB recordset and when I code stringVariable = recordset!tablefieldname the build throws the exception above. My guess is that I am missing a .NET reference but I am stumped. SQLServer 2008 and Visual Studio 2008 - Visual Basic
I'm currently working on a screenshot program, much like Gyazo and I've come across a problem.
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Now, it draws perfectly when I drag left to down (vice versa), but when I try and drag the opposite way (this is when I get negative x and y values), it doesn't seem to draw the rectangle.I've tried fixing it but with no luck at all, it just messes it up :c
I am developing a winform application which targets .NET Framework 4. I would like to get the connection string from the app.conf file but the Imports System.Configuration.ConfigurationManager fails. I can do a Imports System.Configuration but I cannot get to the .ConfigurationManager.
View 7 RepliesI'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 RepliesWhy MS Access adodb in .NET returns 34 in fieldcount when table has 42 fields ?I see 42 fields in table of my MS Access mdb database. But ADODB layer in .NET sees only 34 fields. The Outofrange exception occures when I am calling method getOrdinal("FieldName") of reader class.
View 1 RepliesI have a dataset that I created through the wizard, to pull the data and their types from the database tables and prevent some of the headaches of creating the tables and data types individually.I am looking for where the database connection for the dataset is defined at so I can change this. The reason being is I have added a database connection dialog where the user will select the location of the database server and I am wanting to pass the connection string from what the user selects to the dataset so the dataset uses this as its connection string instead of the default one I defined in the wizard.Where is this defined at so I can change it?
View 6 Replies