Question

I'm trying to test PetaPOCO with MS Access database.

Connection string in web.config

<add name="ConString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0; Data Source=Data.mdb; Persist Security Info=False" providerName="System.Data.Oledb" />

Accessing MS Access database-

var db = new PetaPoco.Database("ConString"); //throws exception here
var rows = db.Query<Model>("SELECT * FROM Table");

Exception thrown-

"Could not match `System.Data.Oledb` to a provider.Parameter name: providerName"

Is there any way to do it? If yes, how?

Answer 1

从PetaPoco 5.1.127或更高版本开始，支持MS Access支持，不需要自定义数据库提供程序。

示例配置文件

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <connectionStrings>
    <clear />
    <add name="msaccess" connectionString="Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|Databases\MSAccess\petapoco.accdb" providerName="OleDb"/>
  </connectionStrings>
</configuration>

流畅的配置

var builder = DatabaseConfiguration.Build().UsingConnectionName("MyConnection");

var db = builder.Create();

构造函数配置

var db = new Database("MyConnection");

Answer 2

正如他们的文档所述＆＃34;适用于SQL Server，SQL Server CE，SQLite，MySQL，MariaDB和PostgreSQL。（Oracle支持但没有集成测试）。＆＃34;，它不支持MS Access

要使用它，您需要编写自己的提供程序。可以找到提供商的样本here

Answer 3

我认为你真正想要的是这个

using System.Configuration;

和

var db = new PetaPoco.Database(ConfigurationManager.AppSettings["ConString"]);

PetaPOCO with MS Access database

3 个答案: