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Saving ppt to Response stream

I am saving a ppt slide to the Response of a page with ASP.NET. Here's the code that does the saving:

page.Response.ContentType = "application/vnd.ms-powerpoint"

page.Response.AppendHeader("Content-Disposition", "attachment; filename=" & _Report.Name & ".ppt")




This works pretty well. The page returns with a dialog to Open or Save the ppt. However, I ran into two issues with this.

1. I can not open the ppt directly by selecting the Open option in the dialog. I get a file path not found error. It is trying to open the ppt from Temporary Internet Files\Content.IE5\Some Random Folder and the file is not there. Is this an IE issue? I am using IE6

2. Any changes I made to controls on the page are not persisted. For example, if I add a listitem to a listbox control on the page prior and then write the ppt to the response stream, that listitem is lost when the page returns.

Sorry for delay.
1. I failed to reproduce first issue. I posted your code in created webproject and PowerPoint 2003 succesfully opened it from IE6.
2. Can you send me part of code, which you used to edit listbox?

1. I created a simple web app and sure enough, I can open the ppt without any problems. I will have to investigate what else I am doing in my other web app to have that problem.

2. For the listbox problem, it's pretty simple. Imagine a form with one listbox and one button. On the button's click event, add an listbox item and write a new ppt to the response stream. When the page returns, the item is not added.

'add item


'create new ppt

Dim ppt As New Aspose.Slides.Presentation


'write ppt to response

Page.Response.ContentType = "application/vnd.ms-powerpoint"

Page.Response.AppendHeader("Content-Disposition", "attachment; filename=" & "Test" & ".ppt")





Were you able to find a solution and correct this problem? We are having it as well and would like to see what you have.


Bob Bachand

Hello Bob,

Both issues are definitely not a problem of Aspose.Slides.
The first issue can be a problem with IIS, Browser, cache or anything else.
The second one is probably wrong asp.net application logic.

Thanks for your reply.

I am interested in only the first issue not the second. I understand that this does not look like an Aspose issue but I was wondering if this particular gentleman had resolved his issue or not.