C# 连接SQL Server中的多个列

我有一个查询，其中我必须添加多个列

查询结果存储在DataTable中，并将其绑定到Repeater。但问题是DataTable显示的是列名，而不是我在查询中指定的名称

HTML Persons.aspx：

逻辑类：

public class PersonsLogic
{
        public DataTable GetPersons()
        {
            string Connection = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;

            using(SqlConnection con = new SqlConnection(Connection))
            {
                SqlCommand cmd = new SqlCommand("spGetPersons", con);
                cmd.CommandType = CommandType.StoredProcedure;

                con.Open();
                cmd.ExecuteNonQuery();

                DataTable dt = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                da.Fill(dt);

                return dt;
            }
        }
    }

Persons.aspx.cs：

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如果您使用concatatite，那么最好将每个非varchar字段强制转换为varchar，比如convertvarchar、myIntField，当然不要忘记isnull…所以我必须用IsNul编写convert？假设您有整数字段field1，而不是isnull convert varchar、field1，绑定中的名称现在与查询中的名称匹配，问题还存在吗？

select 
    FirstName as PersonName, 
    ISNULL(Designation,'') + ',' + ISNULL(Organization,'') as Post, 
    ISNULL(tblPersons.City,'') + ',' + ISNULL(tblPersons.State,'') as Location, 
    GETDATE() - tblPersons.dob + '( DoJ :' + '' + ISNULL(tblPersons.doj,'') as Age, 
    tblPersons.photo_name as Pic
from 
    tblpersons

public class PersonsLogic
{
        public DataTable GetPersons()
        {
            string Connection = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;

            using(SqlConnection con = new SqlConnection(Connection))
            {
                SqlCommand cmd = new SqlCommand("spGetPersons", con);
                cmd.CommandType = CommandType.StoredProcedure;

                con.Open();
                cmd.ExecuteNonQuery();

                DataTable dt = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                da.Fill(dt);

                return dt;
            }
        }
    }

protected void Page_Load(object sender, EventArgs e)
{
            Persons objPerson = new Persons();
            PersonsLogic objLogic = new PersonsLogic();
            DataTable dt = objLogic.GetPersons();

            if (dt.Rows.Count > 0)
            {
                rptPersons.DataSource = dt;
                rptPersons.DataBind();
            }
            else
            {
            }
}