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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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 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 wanna know how to retrieve data from a database using adodb connection in VB.
View 1 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.
What is the connection string for connecting MS Access 2010 (.accdb) database in VB.net.
View 3 RepliesMy Ms-Access .mdb file is on my website. It is in the App_Data Folder
The current connection string is:
OleDbDataAdapter Da = new OleDbDataAdapter("Select * from SerialNo",
new OleDbConnection(@"provider=microsoft.jet.oledb.4.0;
data source=ftp://ftp.WebsiteName.com/App_Data/SerialNo.mdb"));
Where am I making a mistake in above connection string?
Note: CRs added in the code for better readability
My query is not the straightforward connection to MS Access.I am using a third application that places all data in an Access database BUT recently they changed the database so that it doesn't end in '.mdb', instead in another suffix: '.accdb'.The database is still an Access database but I cannot connect to it using the connection strings:[code]Previously I was able to use the second connection when the database name ended in '.mdb' (Database Name.mdb).
View 1 RepliesI will be developing a program using visual studio 2008 with ms access 2007 as my database. What I only use is this type of connection string: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:mydatabase.mdb;Jet OLEDB:System Database=system.mdw;" but i was asked if it is possible to put the database in sharepoint and I haven't even tried it before. The case is like this, the program that i will do would be installed on some computer units of different branches of the company then the database should be accessible through sharepoint so that every users can access the most updated database.
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I've set up a test database to begin unit-testing an app that I've recently been added to. It is a 3-tier design (presentation layer, BOL and DAL) and this is my first time writing unit tests. I've decided to start at the BOL and I figure the best way is to swap out the ConnectionString (which has been passed along as a Shared String) with one that points to my new test database. However, I don't wish to change any production code. I simply wish to somehow redirect the app to the test database during unit tests.
View 4 RepliesI wrote a program that connected to a Microsoft Access 2000/2003 mdb file and accesses the data. It works fine, but I'm wondering if there is a way to connect to Access 2007? If I change my connection string, will my program work with access 2007 or is it more complicated then that? And if it will work, can someone provide an example of an Access 2007 database?
View 2 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 Repliesi m using Microsoft VS 2008 and in that VB.NET as the language the problem is i m not able to store connection string every time machine changes have to keep on changing the connection string
View 7 RepliesI have vb .net windows form application that I want to connect to Microsoft access database using "Microsoft DAO 3.6 object library". My problem is that when I go to Project tab -> Add reference -> COM tab, there should have been "Microsoft DAO 3.6 Object Library" on the list, but for some reason It's not on the list. Then I googled, and found out that the location of "DAO360.DLL" is "Program FilesCommon FilesMicrosoft SharedDAO". After clicking on Browse tab, I browsed to that location, and I guess I added reference on another way.This is the code that I used before for connecting to Access, but for some reason It doesn't work this way on this PC.
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Is there a way to display the connection properties dialog for connection string browsing(for database) in run time?
As I want the user to be able to connect to various database using the GUI.
I coded a program to access a Microsoft Access 2010 database. The program is written using Microsoft Visual Studio 2010. I get the error message that the database I'm trying to access is in an invalid format. look at the code below to see what I missed. The error is in the datasource statement.
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I'm using Visual Basic/Studio 2010 Express to run my VB program using MS Access database. I'm going to convert the Access database to a SQL Server Server Express data base so I downloaded SQL Server 2008 R2 Express onto my pc with Windows 7. The installation went fine and I actually converted my Access database to SQL server. I did not change anything in my VB program.My problem: When I run my normal program with the Access database (no changes), I now get an error when it executes the following code:
dr = cmd.ExecuteReader.
I get the error System.Data.OleDb.OleDbException was unhandled;
ErrorCode=-2147467259; Message=ODBC--connection to 'SQL ServerBilotta-pcsqlexpress' failed.
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It appears the ODBC is looking for the SQL server eventhough the program is pointing to the MS Access db. How do I get it to NOT look for the SQL db? Is there a default setting for the
can anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
View 5 Repliesim just starting to work with some database stuff, and ive got data binding done but im a little stuck with filtering. Ive got a test project, which has
-- listbox (bound to column 2/firstname)
-- Combo box (Has items added, with the same names as the items in colunm 3. so it has 'RPG' and 'Puzzle')
Now what im trying to do is when the item in the combobox is changed say to 'RPG' only items in the db which have 'RPG' in the surname column are displayed in the listbox. Been Google'ing and reading but all i can find is examples relating to a dataview and i cant get them to work/adapt to my situation.
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 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 made a Microsoft Access Database on my old computer and it worked fine with vb 2008When i try to go to my form containing the tables from Microsoft access, I get this message
View 3 RepliesI'm developing a program utilizing an Access database and Visual basic. I'm having a problem saving the data I'm adding to the database. I'm entering the data into the database table with text boxes and making a new row and adding it the the table:Database2DataSet.Tables("").Rows.Add(newRow)
I have a grid view for the table, and the new row is added to the table, showing that I'm getting the new information into the table. However, I'm trying to save this new information to the database so its there after I close the program. I've tried using the following but none have worked so far.
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I am taking Computing at A Level and need to create a solution for a business.I have thought of my solution which is a log of all the cars that go out on test drive for my dads motor company, i have created a database in Microsoft Access and have saved it as the usual mdb file. i have then imported this into the project and would like to use it.I have created a login form which i would like to use along side the database in the sense i would like it to check when a user enters their name and password for those two things in the database and respond accordingly. I also have created forms in which employees would enter information and then click the submit button, i need this to then place the information into a database as records under the right headings.I have tried using the program and play about a bit but i just can't understand it easily, even when i search for help i have trouble understanding what it all means.If someone could help me that would be great cheersLongy1259
View 4 RepliesI'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.
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