public void InitDb(DataType dbtype, string connstr)
{
this.DbContext = new DbContext(connstr);
switch (dbtype)
{
case DataType.Oledb:
connstr = @"Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + connstr;
DbContext.ConnStr = connstr;
DbContext.DbProvider = new OleDbProvider();
break;
case DataType.Mssql:
DbContext.DbProvider = new SqlProvider();
break;
case DataType.Mysql:
DbContext.DbProvider = new MySqlProvider();
break;
default:
throw new ArgumentException("未支持的provider:" + dbtype.ToString(), "provider");
}
if (_da == null)
{
_da = new NjhDataSqlExecutor(this.DbContext);
}
}
public NjhDataEntityOPerationMsSql(NjhDataSqlExecutor executor)
{
this._executor = executor;
}
public OledbEntityOperation(NjhDataSqlExecutor factory)
{
this.conn = (OleDbConnection)factory.CreateConnection();
this._executor = factory;
}