?using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
using System.Data.SqlClient;

public partial class usermanage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        SqlConnection cn = new SqlConnection("Server=.;Database=Mylibrary;UID=sa;Pwd=123;");
        string findstring = "select * from jieyue where ReaderID='" + Reader2.Text + "'";
        SqlDataAdapter sda = new SqlDataAdapter(findstring, cn);
        DataSet ds = new DataSet();
        sda.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind();
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        SqlConnection cn = new SqlConnection("Server=.;Database=Mylibrary;UID=sa;Pwd=123;");
        string overstring = "select * from jieyue where(day(應還時間)- day(getdate()) <0)";
        SqlDataAdapter sda = new SqlDataAdapter(overstring, cn);
        try
        {
            cn.Open();
            DataSet ds = new DataSet();
            sda.Fill(ds);
            GridView1.DataSource = ds;
            GridView1.DataBind();
        }
        catch (Exception ex)
        {
            Response.Write("錯誤出現在" + ex.Message );
        }
        finally
        {
            cn.Close();
        }
    }
}