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protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ViewState["BackUrl"] = Request.UrlReferrer.ToString();
    }
}
/// <summary>
/// ·µ»Ø°´Å¥µã»÷ʼþ
/// </summary>
protected void Button1_Click(object sender, EventArgs e)
{
    Response.Redirect(ViewState["BackUrl"].ToString());
}
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this.RegisterClientScriptBlock("E", "<script language=javascript>history.go(-2);</script>");
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Response.Write("<script language=javascript>history.go(-2);</script>");
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1using System;
2using System.Collections.Generic;
3using System.Text;
4//using Excel = Microsoft.Office.Interop.Excel;
5using Excel;
6using System.Windows.Forms;
7
8
9namespace ExcelReport
10{
11 class InsertPicToExcel
12 {
13 / ......

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SQL:
using System.Data.SqlClient;
string sql = "server=.;uid=sa;pwd=;database=tablename;";
ACCESS:
using System.Data.OleDb;
string sql = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" + HttpRuntime.AppDomainAppPath + "//App_Data//db.mdb";
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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;
names ......
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