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protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["BackUrl"] = Request.UrlReferrer.ToString();
}
}
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/// </summary>
protected void Button1_Click(object sender, EventArgs e)
{
Response.Redirect(ViewState["BackUrl"].ToString());
}
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using System.Drawing;
using System.IO;
using System.Drawing.Imaging;
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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 ......