Question

C#链接SQL数据库实现查询功能，怎么老是不显示数据，，代码如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{

protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string connStr = @"server=HUANGZHENG\SQL2012;
integrated security=true;
database=Lianxiren
";
SqlConnection conn = new SqlConnection(connStr);
string query = @"select *
from Label
";
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(query, conn);
DataSet ds = new DataSet();
da.Fill(ds,"Label");
GridView1.DataSource = ds.Tables["Label"];
GridView1.DataBind();

}
}

Answer 1

绑定的那行应该是
GridView1.DataSource = ds.Tables["Label"].DefaultView;
或者
GridView1.DataSource = ds;

追问

还是没用啊。。。显示不了数据