如何封装该存储过程的方法
public static string checkUser(string UserName, string PassWord)
{
try
{
string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
SqlCommand cmd = new SqlCommand("PRO_LOGIN", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@UNAME", SqlDbType.VarChar, 200));
cmd.Parameters["@UNAME"].Value = UserName;
cmd.Parameters.Add(new SqlParameter("@UPWD", SqlDbType.VarChar, 200));
cmd.Parameters["@UPWD"].Value = PassWord;
cmd.Parameters.Add(new SqlParameter("@MESSAGE", SqlDbType.VarChar, 200));
cmd.Parameters["@MESSAGE"].Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
string backString = cmd.Parameters["@MESSAGE"].Value.ToString();
cmd.Dispose();
conn.Close();
return backString;

}
catch (System.Data.SqlClient.SqlException E)
{
throw new Exception(E.Message);
}



}
}


对于以上方法 如何将其封装？ 让ado.net对象的调用不要混在这个方法里面独立出来！

[解决办法]
Refer:
http://www.cnblogs.com/insus/articles/1654653.html