ADO.NET :: Unable To Open Connection In C# Using Ms Access As Database
Jan 3, 2011
[Code]....
and i am receiving error as
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
Description:An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.Odbc.OdbcException: ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
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Sep 13, 2010
I'm using Visual Studio 2008, and my database is SQL Server 2000.
I want to add a connection to the Server Explorer in VS. The Data source is Microsoft SQL Server (SqlClient). After entering in all my information and I click Test Connection, it is successful.
But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
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Mar 20, 2011
how many users can open a connection to Microsoft Access database simultaneously ?I am using asp.net 4.0 to write my application.
<add name="E_ShopAccessConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|
eport.mdb;Persist Security Info=True" providerName="System.Data.OleDb"/>
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Apr 15, 2010
We are currently migrating our test databases to a new server and I am switching one of our sites over to use them. When running the application from my development box it hits the database just fine. However when I compile and push the code out to our test server and try to use the same datbase I get the ExecuteNonQuery requires an open and available Connection. The connection's current state is closed error. I cannot seem to figure out why. Also when I point the site at our old test server it works just fine.
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Nov 14, 2010
I have a Windows Service I have developed in Visual Studio 2005 (C#).
It accesses a database using a connection string in machine.config.
On my Windows XP Pro 32bit (SP3) machine, it works correctly.
On my new Windows 7 Pro 64bit machine, it throws "object not set to an instance of an object" when it gets to the line where it's trying use the connection string.
This is the 'object' which is not set in Windows 7:
ConfigurationManager.ConnectionStrings["MyDatabase"].ConnectionString
The machine.config has the same connection string set up on both machines.
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I have tried a bunch of different permissions on the machine.config and its containing folders, and setting the service to log in as Admin, but I don't know exactly what permissions are required.
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Oct 20, 2010
I devlopyed on asp.net application in IIS, i need to know how many current database connection is open for the database..
so how can i check how many connection are currently using for this database... if we dont want some connection how can we kill the connection
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Aug 16, 2010
I try to connect my database for so long so i wrote two type of codes. Let's discuse first on.
I have database called PhoneDirectory.
It have only one table named Residents.
I have button wiht ID="Button1".
I want when i click this button to see all of my residents.
I want to see the result in DetailsView and to be able to edin, delete and add new resident.
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<asp:SqlDataSource ID="Resident Details" runat="server" ProviderName="System.Data.SqlClient" ConnectionStrings="<%$ ConnectionStrings:ThisIsTheConnection%>"
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Sep 2, 2010
I have a form wilh couple of Drop downs and text boxes and a Data Grid View which displays data from Access Table. When I hit add button on the form, I can see the data being added to the Grid View. But when I close the form and open the Access Database File (.mdb), the respective table is empty. The Access Table is not being updated. Second time if I open the form, the Grid View is also empty.I am pasting my code here.
Public Class Home
Shared OleDbConnection As System.Data.OleDb.OleDbConnection
Shared ExpensesDataAdapter As System.Data.OleDb.OleDbDataAdapter [code]....
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Jun 5, 2010
First off, I am just getting started with ASP.NET so I expect this is something that I am doing.
i am trying to make a connection to a MS SQL database on my local machine.
I have the following in web.config
[code]....
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Jan 5, 2011
I am making a website in ASP.NET and I wanted to migrate to another mahcine for developing.On the first computer which I used earlier, I had copied the database from Program Files>Microsoft SQL erver>MSSQL1.0SQLEXPRESS>MSSQL>DATA>example.mdf and pasted this database in App_data in my website.Now, when I copied the whole webiste in my new computer and debugged it, it gives an error "Cannot open database "example" requested by the login. The login failed. Login failed for user 'Sarin-PCSarin'. " when I try to login as a user in my webiste.
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Jul 2, 2010
I'm having a terrible time being able to connect my access database to my website. I'm using 1and1.com as my host. The database resides in my App_Data folder. I checked everything I could think of on the host side. I cannot query from the database through VWD Express nor create a typed dataset .xsd that will allow quering the database.p.s. - I don't need any sophisticated security on the database, just a homegrown sign in I put together that works fine for my site which is mostly xml file data.
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May 14, 2010
Iam using vwd2008 C# and an MSaccess database and have tried to connect to the database using SQLDatasource.The code example is as follows:
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]...
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Jul 5, 2010
I've got an ASP.NET web project which connect to an SQL Server 2005 DataBase.I think that I'm doing the part of the database connection awfull because everytime I need to do a query (select for example) I'm creating a new connection, opening the connection, creating the command, executing the query, using the results and closing the connection.
Is the rigth way to open a connection in the start of the application and closing at the end?? How can I do that?? I'm retrieving data but what will happen to database server when the application will be used by many people?
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Jun 11, 2010
I am using Visual Studio 2008 Professional Version.i am trying to open a database of a starter kit which was created also created in VS 2008.everytime i try to open the database i get this message window: i don't know why i am getting this message i am using VS 2008 Profession Full Version
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Jul 30, 2010
I need a connection string to connect the microsoft 2003 database with my ASP.NET webserviceWhen just making a website I used to use the following connection statement
OleDbConnection dbconn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; data source=" + + Server.MapPath("~/db/SalesCentral.mdb"));
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May 11, 2010
I am trying to do a login page which checks username and password from access database. I think my code is almost done but i am getting some weird error which i just can't decipher where it exactly comes from, as i think i already have every return value it needs. Can anyone check this function and tell me if there is something i am missing or doing wrong? And the error i get isDBConnection(string, string)': not all code paths return a value
[Code]....
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Jan 29, 2011
How can i create dbml file for MS Access or suggest me any other method so that i can use LINQ with MS Access database.
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Jun 5, 2010
I previously used a datasource and a connection string to connect to my database on sql server and all orked fine. The connection string was saved in my web.config file and is: ....
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Sep 29, 2010
[Code]....
When I am trying to insert some data I am getting error.
Could not find file 'C:WINDOWSsystem32ikcit.mdb'.
Unable to understand Why??
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Mar 28, 2010
I have a database on Go Daddy and my VS2008 app can not access it via web.config connection string. Of course runs great locally in development. I copy/pasted the connection string information from Go Daddy exactly into my web.config file. Web site runs fine on the web but when I try to Login at my login page, i get :The SSE Provider did not find the database file specified in the connection string. At the configured trust level (below High trust level), the SSE provider can not automatically create the database file.
I used VS2008 to create the .sql script files and uploaded them to Go Daddy and the Go Daddy people say everything works as they and I can both Login to the database from within GoDaddy.The database i am trying to access consists of the a ASPNETDB.mdf and another Database.mdf together as one in the Go Daddy database.
here is what i used: <connectionStrings><add
name="superskin"
connectionString="Data
[code]...
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Mar 1, 2010
In school we have been making a website where we need to use .adp vbscript pages. But also Microsoft Access databases.
We've added the connection string etc and bindings - all that works fine but when we go to open the page we get page cannot be found. It loads sometimes but most of the time we get that page not found screen.
We are using IIS.
The teachers and another students one works fine, We have done exactly what they have but we get no luck with bringing up the pages.
We get error 500.100 and Error line 8.
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Jan 20, 2011
I've created a connection to a read only Oracle database but when trying to execute a very simple SELECT statement it generates the following error:
"database open for read-only access"
I've tried a datareader and dataadapter so its looking like a specific issue or protocol with the database that I am unaware of.
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Sep 30, 2010
I have VS 2010 professional. I am trying to open "ASP.Net Configuration" through Project -> ASP.Net Configuration.
It pops up the Notification about the ASP.Net Development Server localhost but doesn't open ASP.Net Configuration in the default browser.I clicked on the Root Url (by double clicking on the 'development server' at the right bottom from Notification Manager).
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"An error was encountered. Please return to the previous page and try again."
Clicking on "How do i use this tool".It opened page with error.
Tool Has Timed Out
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Oct 20, 2010
I have an ASP.net security database which is normally ASPNetDB.MDF however I have created the same database structure in MS Access. All works great. However, I need to add a couple of other tables but I can't find how to do that in VWD. I'm pretty sure I was able to when the first database I created was an MDF file but not in MS Access.
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Mar 15, 2011
just for my testing purpose i know i can define both the connection's outside in a single web config file by different name's and access them in my front end according to it but what if i want to have seprate for both connection's web.config situation is like this see image so i want to access my connections from second web config file how i can do that.
[Code]...
i tired this but its giving error
[Code]....
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