asp.net 查询问题

来源：百度知道 编辑：UC知道 时间：2024/05/19 17:20:18
以下代码缺少了什么呢，老查不出数据来
protected void Button1_Click(object sender, EventArgs e)
{
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = "Provider = Microsoft.Jet.OleDb.4.0;" + "Data Source =" + Server.MapPath("App_Data/db1.mdb");
conn.Open();
string bbbb = "SELECT 信息标题 FROM 供求 WHERE 信息标题 LIKE '%" + Textbox.Text + "%'";
DataSet ds = new DataSet();
GridView1.DataSource = ds.Tables;
GridView1.DataBind();
}

比我还新手哦。下面的代码看看，应该很好理解吧。。
//OleDbConnection myconn = new OleDbConnection(System.Configuration.ConfigurationManager.AppSettings["connstr"]);
//myconn.Open();
//string slt = "SELECT top 100 * FROM [z_user] order by [id] desc";
//OleDbDataAdapter myadapter = new OleDbDataAdapter(slt, myconn);
//DataSet ds = new DataSet();
//myadapter.Fill(ds);
//GridView1.DataSource = ds.Tables;
// GridView1.DataBind();
//myadapter.Dispose();
//myconn.Close();

protected void Button1_Click(object sender, EventArgs e)
{
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = "Provider = Microsoft.Jet.OleDb.4.0;" + "Data Source =" + Server.MapPath("App_Data/db1.mdb");
conn.Open();
string bbbb = "SELECT 信息标题 FROM 供求 WHERE 信息标题 L