protected void btnExport_Click(object sender, EventArgs e)
{
string url = Request.Url.AbsoluteUri.Replace("MachiningForm", "snapshot");
Thread NewTh = new Thread(new ParameterizedThreadStart(ExportImg));
NewTh.SetApartmentState(ApartmentState.STA);
NewTh.Start(url);
while (NewTh.ThreadState == ThreadState.Running)
{
}
MachiningDAL dal = new MachiningDAL();
var mach = dal.GetMachById(MachId);
string fileName = string.Format("{0}.jpg", mach.Mach_No);
string filePath = Server.MapPath(string.Format("~/ImgLib/{0}", fileName));
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
//通知浏览器下载文件而不是打开
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}
void ExportImg(object url)
{
WebPageSnapshot wps = new WebPageSnapshot();
wps.Url = url.ToString();
try
{
MachiningDAL dal = new MachiningDAL();
var mach = dal.GetMachById(MachId);
string fileName = string.Format("{0}.jpg", mach.Mach_No);
wps.TakeSnapshot().Save(Server.MapPath("~/ImgLib/") + "\\" + fileName);
}
catch (Exception ex)
{
}
wps.Dispose();
}