[英]C# Unity DI container not accepting Enum with RegisterType function
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.local);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.remote);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.OrcsWeb);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.Sage);
Unity RegisterType不接受枚举,但是如果我传递字符串,则不会出现任何问题,但是我必须使用枚举 。 我的完整代码如下。 因此,有人可以看到我的代码,并告诉我应该在代码中修复的内容和位置,因此应该接受枚举 。
public enum ConType { local, remote, OrcsWeb, Sage, };
public interface IBBAConnection
{
IDbConnection GetConnection();
string ConType { get; set; }
}
public class BBAConnection : IBBAConnection
{
public ConType ConType { get; set; }
public IDbConnection GetConnection()
{
string _connectionString = "";
IDbConnection connection = null;
try
{
// inside if else logic we fetch connection string from ini file or from any source and inistialize connection.
if (ConType == ConType.local)
{
_connectionString = "put here local db connection";
connection = new System.Data.SqlClient.SqlConnection(_connectionString);
}
else if (ConType == ConType.remote)
{
_connectionString = "put here remote db connection";
connection = new System.Data.SqlClient.SqlConnection(_connectionString);
}
else if (ConType == ConType.OrcsWeb)
{
_connectionString = "put here website db connection";
connection = new System.Data.SqlClient.SqlConnection(_connectionString);
}
else if (ConType == ConType.Sage)
{
_connectionString = "put here sage connection";
connection = new System.Data.SqlClient.SqlConnection(_connectionString);
}
connection.Open();
}
catch (Exception ex)
{
string strErr = ex.Message;
}
return connection;
}
}
public static class Factory
{
static IUnityContainer cont = null;
public static IBBAConnection initialize(ConType oConType)
{
IBBAConnection oDbConnection = null;
cont = new UnityContainer();
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.local);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.remote);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.OrcsWeb);
cont.RegisterType<IBBAConnection, BBAConnection>(ConType.Sage);
oDbConnection = cont.Resolve<IBBAConnection>(oConType);
//oDbConnection.ConType = type;
return oDbConnection;
}
}
寻找指导原则,以使结果枚举应被接受。
以下是我认为您应该做的。
这将大大降低BBAConnection
的复杂性,因为您可以让IConnectionConfig
绑定确定所需的连接字符串。
public interface IConnectionConfig
{
string GetConnectionString();
}
public class LocalConnectionConfig : IConnectionConfig
{
public string GetConnectionString()
{
return "db connection for local";
}
}
public class BBAConnection : IBBAConnection
{
private readonly IConnectionConfig config;
public BBAConnection(IConnectionConfig config)
{
this.config = config;
}
public IDbConnection GetConnection()
{
string _connectionString = "";
IDbConnection connection = null;
try
{
connection = new System.Data.SqlClient.SqlConnection(this.config.GetConnectionString());
connection.Open();
}
catch (Exception ex)
{
string strErr = ex.Message;
}
return connection;
}
}
注册:
container.RegisterType<IBBAConnection, BBAConnection>();
container.RegisterType<IConnectionConfig, LocalConnectionConfig>();
通常,您将让您的构建配置定义您正在使用的配置。 然后,您可以在代码中使用它来定义所需的配置。
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