下面代码中 con = new SqlConnection(StrConn); 提示不支持关键字privoid什么意思？

private SqlConnection GetConn() {
  StrConn = ConfigurationManager.ConnectionStrings["ProductSHowConn"].ConnectionString;
  con = new SqlConnection(StrConn);
  return con;
  }

完整代码
第一页 为了初始化数据连接代码
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// <summary>
/// DBConn 的摘要说明
/// </summary>
public class DBConn
{

  private string StrConn = string.Empty;
  private SqlConnection con;

public DBConn()
{
  GetConn();
//
// TODO: 在此处添加构造函数逻辑
//
}
  private SqlConnection GetConn() {
  StrConn = ConfigurationManager.ConnectionStrings["ProductSHowConn"].ConnectionString;
  con = new SqlConnection(StrConn);
  return con;
  }
  public DataSet Getds() {
  SqlConnection con = GetConn();
  SqlDataAdapter sda = new SqlDataAdapter("select * from Product_img", con);
  DataSet ds = new DataSet();
  sda.Fill(ds);
  return ds;

  }
}


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\第二页 这是首页测试链接成功代码
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page 
{
  protected void Page_Load(object sender, EventArgs e)
  {
  if (!IsPostBack) {
  DataBindDS();
  }
  }
  private void DataBindDS() {
  DBConn DB = new DBConn();
  DataSet ds = DB.Getds();
  DataList1.DataSource = ds.Tables[0].DefaultView;
  DataList1.DataBind();

  }
}

private 只能在类的内部使用！