填充接口
本文关键字:接口 填充 | 更新日期: 2023-09-27 17:50:35
谁能告诉我如何在我的界面IAccount
填充我的字段?我在x.Add(new IAccount ...
public class IPersonRepo : IAccount
{
string connectionstring = @"Server=SLI002/SQLEXPRESS;Database=atengturonDB;Trusted_Connection=true;";
public int AccountsID
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public byte[] AccountUserName
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public byte[] AccountPassword
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public byte[] AccountSalt
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public void getAccount()
{
SqlConnection conn = new SqlConnection(connectionstring);
using (SqlCommand comm = new SqlCommand())
{
List<IAccount> x = new List<IAccount>();
comm.Connection = conn;
comm.CommandText = "Select AccountsID,AccountsUserName,AccountsPassword,AccountsSalt from Accounts";
comm.CommandType = CommandType.Text;
SqlDataReader reader = null;
conn.Open();
comm.ExecuteNonQuery();
reader = comm.ExecuteReader();
while (reader.Read())
{
x.Add(new IAccount
{
AccountsID = (int)reader["AccountsID"],
AccountUserName = (byte[])reader["AccountsUserName"],
AccountPassword = (byte[])reader["AccountsPassword"],
AccountSalt = (byte[])reader["AccountsSalt"]
});
}
conn.Close();
}
}
}
请将IPersonRepo
重命名为PersonRepo
,前缀I
表示接口,但显然是类。第二,它看起来不像repo (=repository),而是像Person
(但这是有争议的…:))
第三,你正在尝试创建接口-但你必须实现该接口的实例类:
//x.Add(new IAccount
//x.Add(new IPersonRepo
//x.Add(new PersonRepo
x.Add(new Person
{
AccountsID = (int)reader["AccountsID"],
AccountUserName = (byte[])reader["AccountsUserName"],
AccountPassword = (byte[])reader["AccountsPassword"],
AccountSalt = (byte[])reader["AccountsSalt"]
});
第四点也是最后一点,也许你应该看看任何ORM,比如NHibernate或实体框架。我可以帮你,但这是你的决定
首先,在决定类名时永远不要使用I
前缀。这不是编译错误,但它非常令人困惑,因为惯例是使用I作为接口名称的前缀。
所以你的类应该叫PersonRepo
,而不是IPersonRepo
。
(但是,您可以将以I
开头的类命名为(Ice
),只是不要使用I
作为前缀)
第二个,你不能实例化接口。您可以使用接口类型的变量,但实例化实际的类:IAccount MyAccount = new PersonRepo()
;