Question

public class User
{
   public string FirstName { get; set; }
   public string LastName { get; set; }
}

public class Address
{
    public string City { get; set; }
    public string Country { get; set; }
}


/*
 * There are 2 c# objects i have shown 
 * There is a stored procedure in my application which
 * returns data for both objects simultaneously 
 * eg 
 * select FirstName, LasteName from Users where something="xyz"
 * select City,Country from Locations where something="xyz"
 * 
 * both queries are run by single procedure 
 * Now how can i fill both objects with from that stored procedure in asp.net using c#
*/

Answer 1

使用ADO.NET，在使用参数执行SP的SqlCommand对象上打开SqlDataReader。使用SqlDataReader.NextResult方法获取第二个结果集。

基本上：

SqlConnection cn = new SqlConnection("<ConnectionString>");
cn.Open();

SqlCommand Cmd = new SqlCommand("<StoredProcedureName>", cn);
Cmd.CommandType = System.Data.CommandType.StoredProcedure;

SqlDataReader dr = Cmd.ExecuteReader(CommandBehavior.CloseConnection);

while ( dr.Read() ) {
    // populate your first object
}

dr.NextResult();

while ( dr.Read() ) {
    // populate your second object
}

dr.Close();

Answer 2

您可以使用ADO.net并设计一个数据集，它将为您创建类，以便您的查询将执行并读入存储您获得的数据的类。

http://msdn.microsoft.com/en-us/library/aa581776.aspx

这是一个关于如何创建数据访问层的优秀教程，这听起来像你想要做的。

Answer 3

using(SqlConnection connexion = new Sqlconnection(youconenctionstring))
using(SqlCommand command = conenxion.Createcommand())
{
    command.Commandtext = "yourProcName";
    command.CommandType = CommandType.StoredProcedure;
    command.Paramters.Add("@yourparam",yourparamvalue);
    connexion.Open();
    SqlDataReader reader = command.ExecuteReader();


    List<User> users = new List<User>;
    List<Adress> adresses = new List<User>;
    while(read.Read())
    {
        User user = new User();
        user.firstName = (string) read["FirstName"];
        users.Add(user);
     }
    read.NextResult();
    while(read.Read)
    {
        Address address = new Address();
        address.City = (string) read["Name"];
        adresses.Add(address);
    }
   //make what you want with your both list
}

Answer 4

Linq to SQL，Entity Framework或NHibernate将是我的建议。

Answer 5

查看企业库，特别是Microsoft软件模式和实践中的数据访问块。即使你不使用它，你也可以窃取，呃......借用代码来做你想做的事。

http://www.codeplex.com/entlib

从收到的数据存储过程中填充自定义C＃对象

5 个答案: