[英]OLEDB connection to Access Database (accdb)
I want to make a simple application for an exercise, so it could be nice to connect to a simple database like Access (.accdb) 我想为一个练习做一个简单的应用程序,所以连接到像Access这样的简单数据库(.accdb)会很不错
My program looks like this: 我的程序看起来像这样:
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: 我使用Visual Studio 2010.当我使用内置调试模式“Start without Debugging”(CTRL + F5)测试我的应用程序时,我收到此错误:
The 'Microsoft.ACE.OLEDB.14.0' provider is not registered on the local machine. “Microsoft.ACE.OLEDB.14.0”提供程序未在本地计算机上注册。
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 我曾尝试从Microsoft omepage下载并安装“Microsoft Access Database Engine 2010 Redistributable”(64位): http : //www.microsoft.com/download/en/details.aspx?id = 13255
Unfortunately it sah not solved the problem. 不幸的是,它没有解决问题。 I still got the error when the myAdapptor.Fill() is executed.
执行myAdapptor.Fill()时仍然出现错误。 What is wrong?
怎么了?
您需要Access 2007 Runtime 。
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 对于对我的解决方案感兴趣的其他人,我发现Access 2010不支持Microsoft.ACE.OLEDB.14.0。相反,我使用了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 您可以从此站点下载其“2007 Office System驱动程序:数据连接组件”: 2007 Office System驱动程序:数据连接组件
Had a similar problem but just a plan old mdb in my case. 有一个类似的问题,但在我的情况下只是一个计划旧的mdb。 Provider=Microsoft.Jet.OLEDB.4.0 does the trick for that, no need to download any extra runtimes.
Provider = Microsoft.Jet.OLEDB.4.0可以解决这个问题,无需下载任何额外的运行时。
add using System.Data.OleDb
library. 使用
System.Data.OleDb
库添加。
now for the connection string 现在为连接 字符串
OleDbConnection con = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Aishwar NIGAM\\Documents\\indianOil.accdb");
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