未在本地计算机上注册“ Provider = Microsoft.ACE.OLEDB.12.0”提供程序

Question

I've tried everything from targeting x86, downloading AccessDatabaseEngine, Microsoft Access Database Engine 2010 Redistributable, going to Tools->Options->Projects and Solutions->Web Projects and unchecking 'Use the 64 bit version of IIS Express for web sites and projects'. I uninstalled every Office app I had. I downloaded Office 2013 32-bit so I have Access 2013, Visual Studio Express 2015 for Web.

I have Test.accdb database so I have to connect trough OleDbConnection.

Here is the part of my code that is relevant. I've got something after I open the connection but it doesn't matter because it doesn't even get there:

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

namespace FirstTest
{
    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            OleDbConnection connection = new OleDbConnection();
            connection.ConnectionString = @"Provider=Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\MyUser\Desktop\FirstTest\App_Data\Test.accdb;Persist Security Info=True;";

            connection.Open();

            OleDbCommand command = new OleDbCommand();
            command.Connection = connection;


        }
    }
}

After I build the project I get an error on 'connection.Open()'.

The weird thing is if I go to Server Explorer, right click on my DB and I click on Refresh it puts something green over it. And every time I build it gets a red thing.

I have W10 64 bits. This is a test to get a job interview, the task is really easy but I can't test what I've done so far because I can't connect to the database.

Answer 1

您有两次Provider= ，应该只出现一次。