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Rewrite simple JScript code to VB.NET

Posted on 2007-11-20
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Last Modified: 2011-10-03
Can someone please re-write for me this simple JScript code to VB.NET.
The code is basically generate a PDF file and display it in client's web browser.

Thanks

<%@ LANGUAGE=JScript %>
<%
//create the pdf
shl = Server.CreateObject("WScript.Shell")
argument = "\"c:\\omniformat\\html2pdf995.exe\" "
//argument = argument + "\"c:\\pdf995\\readme.html\" "
argument = argument + "\"www.epad995.com\" "
argument = argument + "\"c:\\inetpub\\wwwroot\\out.pdf\""
//run html2pdf995 and wait for it to return
shl .Run(argument, 0 , 1 )

//display the pdf
Response.ClearContent
Response.ContentType = "application/pdf"
Response.Redirect ("http://localhost/out.pdf")
%>

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Question by:Terrace
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6 Comments
 
LVL 29

Accepted Solution

by:
Göran Andersson earned 500 total points
ID: 20325965
In .NET you use the Process and ProcessStartInfo classes to run a program.

Clearing the content and setting the content type before calling Response.Redirect has no effect at all. That's what you do if you send the data back in the same response using Response.BinaryWrite or Response.WriteFile.
Dim program As String = "c:\omniformat\html2pdf995.exe"
Dim argument As String = """c:\pdf995\readme.html"" ""www.epad995.com"" ""c:\inetpub\wwwroot\out.pdf"""
 
Dim process As New System.Diagnostics.Process
process.StartInfo = New System.Diagnostics.ProcessStartInfo(program, argument)
process.Start()
process.WaitForExit()
 
Response.Redirect("http://localhost/out.pdf")

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0
 

Author Comment

by:Terrace
ID: 20328666
Thank you very much.
I played with this code and made some modifications to accomodate paths and other stuff.
This is all new to me, but hopefully will make it work.
As a test, I created a button on my web form and inserted your code such as

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim program As String = "c:\ProgramFiles\omniformat\html2pdf995.exe"
        Dim argument As String = """c:\ProgramFiles\pdf995\readme.html"" ""c:\TestWebLock\PDF\30222.pdf"" ""c:\TestWebLock\PDF\out.pdf"""
        Dim process As New System.Diagnostics.Process
        process.StartInfo = New System.Diagnostics.ProcessStartInfo(program, argument)
        process.Start()
        process.WaitForExit()
       Response.Redirect("http://192.24.251.26:8081/PDF/out.pdf")
    End Sub

When I click on the button, I expect to have the out.pdf file displayed in browser window.

I know this is out of scope of this question, but maybe you have some idea or can help me troubleshoot it.

P.S. you already deserved the points, so this is just your good will.

Thanks. Happy Thanksgiving
0
 
LVL 29

Expert Comment

by:Göran Andersson
ID: 20331672
Perhaps I can help you troubleshoot it if you tell me what the trouble is...
0
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LVL 29

Expert Comment

by:Göran Andersson
ID: 20452826
Checking back... you never answered what the the trouble was?
0
 

Author Comment

by:Terrace
ID: 20495205
I got too busy with this project.
Your code helped me to get started, so I thank you for that.
0
 

Author Comment

by:Terrace
ID: 20495220
This is how this code looks like in VB.NET
Dim program As String = "C:\Program Files\omniformat\omniformat.exe"
 
Dim argument As String = Chr(34) & "C:\TestWebLock\Rates\" + strTransID & Chr(34) & " " & Chr(34) & "PDF" & Chr(34)
 
Dim process As New System.Diagnostics.Process
process.StartInfo = New System.Diagnostics.ProcessStartInfo(program, argument)
process.Start()
process.WaitForExit()

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