After response.write screen does not get updated

Question

I am creating a Purchase Order PDF at the click of a button using Response.Write.

    Response.ContentType = "pdf/application";
    Response.AddHeader("content-disposition", "attachment;filename=PurchaseOrder.pdf");
    Response.OutputStream.Write(ms.ToArray(), 0, ms.ToArray().Length);

After that, I try to update the screen to show that the order has been raised:

    labelReqPOStatus.Text = "PO Raised";

The screen does not get updated. How can I get it to do so?

Is ms a memory stream? If so do you set the position on it to 0 before calling ToArray()? also Response.End() may help — Victor, Jul 24 '14 at 11:34
You simple cannot do that ! Same answer http://stackoverflow.com/questions/14760154/response-transmitfile-nothing-happening/14760372#14760372 — Aristos, Jul 24 '14 at 11:36

score 1 · Answer 1 · answered Jul 24 '14 at 12:22

As mentioned by Aristos - this is not possible. What you can do is to

1) update your page first

labelReqPOStatus.Text = "PO Raised";

2) as part of this update add javascript code to start download of actual pdf (assuming you have "Handler1.ashx" that will serve the file like you've mentioned)

ClientScript.RegisterClientScriptBlock(GetType(), "Download", "window.open('Handler1.ashx')", true);

After response.write screen does not get updated

1 Answers1