OLEDB connection to Access Database (accdb)

问题

I want to make a simple application for an exercise, so it could be nice to connect to a simple database like Access (.accdb)

My program looks like this:

using System;
using System.Collections.Generic; 
using System.Data;
using System.Data.OleDb;
using System.Linq;
using System.Web;

namespace myProject.Account
{
    public class DbManager
    {
       private OleDbConnection _dbConnection;

       public void OpenDbConnection()
       {
        _dbConnection = new OleDbConnection {ConnectionString = GetConnectionString()};
       }

       private string GetConnectionString()
       {
        return "Provider=Microsoft.ACE.OLEDB.14.0;Data Source=exercise1.accdb";
       }

       public void CloseDbConnection()
       {
        _dbConnection.Close();
       }

       public void GetUser()
       {
        DataSet myDataSet = new DataSet();
        var myAdapptor = new OleDbDataAdapter();
        OleDbCommand command = new OleDbCommand("SELECT * FROM tblUser", _dbConnection);
        myAdapptor.SelectCommand = command;
        myAdapptor.Fill(myDataSet, "tblUser");
       } 

    }
  }

I using Visual Studio 2010. When I test my application by using the built in debug mode "Start without Debugging" (CTRL+F5) I get this error:

The 'Microsoft.ACE.OLEDB.14.0' provider is not registered on the local machine.

I have tried to download and install "Microsoft Access Database Engine 2010 Redistributable" (64 bit) from Microsoft omepage: http://www.microsoft.com/download/en/details.aspx?id=13255

Unfortunately it sah not solved the problem. I still got the error when the myAdapptor.Fill() is executed. What is wrong?

回答1:

You need the Access 2007 Runtime.

回答2:

For others that are interested in my solution, I figured out that Microsoft.ACE.OLEDB.14.0 is not supported for Access 2010. Instead I used Microsoft.ACE.OLEDB.12.0

You can download their "2007 Office System Driver: Data Connectivity Components" from this site: 2007 Office System Driver: Data Connectivity Components

回答3:

Had a similar problem but just a plan old mdb in my case. Provider=Microsoft.Jet.OLEDB.4.0 does the trick for that, no need to download any extra runtimes.

回答4:

add using System.Data.OleDb library.

now for the connection string

OleDbConnection con = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Aishwar NIGAM\\Documents\\indianOil.accdb");

来源：https://stackoverflow.com/questions/8302349/oledb-connection-to-access-database-accdb

标签

ASP.NET

oledbconnection