can not show the ppt image

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hi
i have a web page and i want to upload ppt file on it,convert it into imgage in show it into an image tag. the ppt file has one slide. here is the code:

protected void Page_Load(object sender, EventArgs e)
{
    ApplicationClass pptApplication = new ApplicationClass();
    Presentation pptPresentation = pptApplication.Presentations.Open("saifullah.ppt", MsoTriState.msoFalse,MsoTriState.msoFalse, MsoTriState.msoFalse);

    pptPresentation.Slides[1].Export("slid.jpg", "jpg", 320, 240);
    Image1.ImageUrl = pptPresentation.ToString();
}

When I debug the page it shows the following output instead of image.

Submit Query

Can somebody tell me where the problem is?

Thanks for your time!

Posted 25-Oct-11 2:19am

saifullahiit

Updated 25-Oct-11 2:38am

Manfred Rudolf Bihy

v2

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Comments

E.F. Nijboer 25-Oct-11 8:27am

The security risk of doing something like this is outrageous. It's like saying, upload any executable and I will execute it.

saifullahiit 25-Oct-11 8:35am

same type of code is also given in:
http://stackoverflow.com/questions/2653740/problems-with-office-automation-in-asp-net-i-can-use-alternatives-such-as-open
http://stackoverflow.com/questions/2972263/ppt-slides-to-images
so its not something risky it just convert your ppt file into image so that user wont download them as ppt.
if you can solve the given issue, it will be much appreciable.

E.F. Nijboer 25-Oct-11 15:24pm

Have you read the microsoft page? You can find it in your first link. It is one in a list of quite some problems with server-side automation.
http://support.microsoft.com/kb/257757

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Manfred Rudolf Bihy · Accepted Answer · 2011-10-25T02:48:00

Here's the problem in your code:

C#

protected void Page_Load(object sender, EventArgs e)
{
    ApplicationClass pptApplication = new ApplicationClass();
    Presentation pptPresentation = pptApplication.Presentations.Open("saifullah.ppt", MsoTriState.msoFalse,MsoTriState.msoFalse, MsoTriState.msoFalse);
    // Here you export the  slide as a JPG file which is OK
    // You should also specify a path in your file system where to the export should take place
    // and additionally this path should be exposed under some URL on your host
    String filePath;
    filePath = Server.MapPath("/Some/Virtual/Path/on/your/WebSite");
    filePath += "\\{0}";
    String fileName = "slid.jpg"; // This should be dynamic too so you can have more that one picture of a slide
    String fileNameAndPath = String.Format(filePath, "slid.jpg");
    pptPresentation.Slides[1].Export(fileNameAndPath, "jpg", 320, 240);
    Image1.ImageUrl = String.Format("/Some/Virtual/Path/on/your/WebSite/{0}", fileName);
}

Regards,

—MRB