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  • 使用DataReader读取数据

    List<User> allUsers = new List<User>();

    SqlConnection conn = new SqlConnection(连接字符串);

    SqlCommand cmd = new SqlCommand("SELECT语句",conn);

    conn.Open();

    using(SqlDataReader rdr = cmd.ExecuteReader())
    {
    while(rdr.Read())
    {
    User u = new User();
    user.Id = (int)rdr["Id"];
    user.LoginId = (string)rdr["LoginId"];
    user.LoginPwd = (string)rdr["LoginPwd"];
    user.Name = (string)rdr["Name"];
    user.Address = (string)rdr["Address"];
    user.Phone = (string)rdr["Phone"];
    user.Mail = (string)rdr["Mail"];
    user.UserRoleId = (int)rdr["UserRoleId"];
    user.UserStateId = (int)rdr["UserStateId"];

    allUsers.Add(u);
    }
    }

    conn.Close();

    return allUsers;

    ======================================================

    SqlConnection conn = new SqlConnection(连接字符串);

    SqlDataAdapter adapter = new SqlDataAdapter("SELECT语句",conn);

    DataSet ds = new DataSet();

    adapter.Fill(ds,"表名");

    return ds.Tables[0];

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  • 原文地址:https://www.cnblogs.com/liuyudun/p/3812711.html
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