使用vb.net为vs2010显示.ppt /.pptx文件

Question

I am using following code for displaying .pdf file but the same code is not working for .ppt / .pptx files. Need suggestions.

If file.Name.Contains(Left(lblMth.Text, 3) & lblYr.Text) Then
    Response.Clear()
    Response.ClearContent()
    Response.ClearHeaders()

    Dim path As String = file.FullName 'strLine & GridView1.Rows(index).Cells(1).Text()
    Dim client As New WebClient()
    Dim buffer As [Byte]() = client.DownloadData(path)

    If buffer IsNot Nothing Then
        Response.ContentType = "application/pdf"
        Response.AddHeader("content-length", buffer.Length.ToString())
        Response.BinaryWrite(buffer)
    End If
End If

Answer 1

You need to set the correct content type for the file type you are sending:

.ppt

application/vnd.ms-powerpoint

.pptx

application/vnd.openxmlformats-officedocument.presentationml.presentation

See Office MIME Types for more reference