第三方Girdview中文件下载的方法，以及js显示图片

 

/// <summary>

/// 文件下载事件

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void Grid_OnCopyInsertClick(object sender, EventArgs e)         {

LinkButton LBut = sender as LinkButton;

string sellContractScanId = LBut.CommandName;

string url = "";

string name = "";

foreach (DataRow dr in griViewTable.Rows)             {

if (dr["序号"].ToString().Equals(sellContractScanId))                 {

url = dr["路径"].ToString();

name = dr["文件名称"].ToString();

break;

}             }

if (System.IO.File.Exists(HttpContext.Current.Server.MapPath(url)))             {

Response.Redirect("UserInfoScanDownload.aspx?FilePath=" + url + "&FileName=" + name);

}

else

{                 bp.Alert("文件不存在！");

}

BasePage bp = null;

protected void Page_Load(object sender, EventArgs e)         {

if (Request["FilePath"] == null)

return;

if (Request["FileName"] == null)

return;

string fileRpath = Request["FilePath"].ToString();

string fileName = Request["FileName"].ToString();

if (System.IO.File.Exists(HttpContext.Current.Server.MapPath(fileRpath)))             {

Response.ClearHeaders();

Response.Clear();

Response.Expires = 0;

Response.Buffer = true;

Response.AddHeader("Accept-Language", "zh-tw");

string name = System.IO.Path.GetFileName(fileRpath);

System.IO.FileStream files = new FileStream(HttpContext.Current.Server.MapPath(fileRpath), FileMode.Open, FileAccess.Read, FileShare.Read);                 byte[] byteFile = null;

if (files.Length == 0)                 {

byteFile = new byte[1];

}

else

{

byteFile = new byte[files.Length];

}

files.Read(byteFile, 0, (int)byteFile.Length);

files.Close();

Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));                 Response.ContentType = "application/octet-stream;charset=gbk";

Response.BinaryWrite(byteFile);

Response.End();

}

}