C# 数据访问应用程序块5.0 fluent配置
我正在使用以下代码设置连接字符串:C# 数据访问应用程序块5.0 fluent配置,c#,configuration,fluent,daab,C#,Configuration,Fluent,Daab,我正在使用以下代码设置连接字符串: ConfigurationSourceBuilder builder = new ConfigurationSourceBuilder (); builder.ConfigureData () .ForDatabaseNamed ( "TestDatabase" ) .ThatIs.ASqlDatabase () .
ConfigurationSourceBuilder builder = new ConfigurationSourceBuilder ();
builder.ConfigureData ()
.ForDatabaseNamed ( "TestDatabase" )
.ThatIs.ASqlDatabase ()
.WithConnectionString ( "Data Source=127.0.0.1;User Id=sa;Password=123;Initial Catalog=DataAccessExamples;" )
.AsDefault ();
var configSource = new DictionaryConfigurationSource ();
builder.UpdateConfigurationWithReplace ( configSource );
EnterpriseLibraryContainer.Current
= EnterpriseLibraryContainer.CreateDefaultContainer ( configSource );
在执行上述代码后,我希望下面的代码能够正常工作,但它表示连接未初始化,command.connection属性始终保持null
Database database = DatabaseFactory.CreateDatabase ();
DbCommand command = database.GetSqlStringCommand ( "Select * from TT" );
DbDataReader dbReader = command.ExecuteReader ( System.Data.CommandBehavior.CloseConnection );
while (dbReader.Read ())
{
System.Diagnostics.Debug.WriteLine ( dbReader[0].ToString () );
}
请告诉我为什么连接没有初始化
我正在库项目中使用上述代码,并希望在运行时配置DAAB
谢谢,为什么要硬编码连接字符串?在应用程序的配置文件中包含连接字符串不是更有意义吗 为什么需要使用数据库工厂
SqlDatabase db = new SqlDatabase("some connection string from the config");
DbCommand cmd = db.GetSqlStringCommand(sqlStatement);
IDataReader reader = db.ExecuteReader(cmd);