VB .NET Commandline Argument questions

[edmondsnake]

Dear all,
I would like to ask questions about my VB.net program. The executable file of the program is called "PSP.exe"

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
 
        Dim commandline As String = Environment.CommandLine 
        Dim myParam As String = ""
        For Each param As String In _
        My.Application.CommandLineArgs
 If param = "-s" Then
       If Convert.ToInt32(param) > 0 Then
              regenSchool(param, 0)
              Console.WriteLine("Arguments: " + Convert.ToInt32(My.Application.CommandLineArgs(1)) + Convert.ToInt32(My.Application.CommandLineArgs(2)))
       end if
 end if
Next

What i wanna do is that, in command prompt, if i type "PSP.exe"
it will call the form and let user input some information.
If I type "PSP.exe -s 78", the two arguments following will be "-s" and an integer, it will do some other functions. But I cant make it.

1. Actually what is the use of Environment.CommandLine ?
2. And what is the difference between the Environment.CommandLine and looping through the My.Application.CommandLineArgs ?
3. And how to debug the program because when i press debug, i cant input any command line arguments.
4. Why can't I print the arguments out by Console.WriteLine("Arguments: " + Convert.ToInt32(My.Application.CommandLineArgs(1)) + Convert.ToInt32(My.Application.CommandLineArgs(2)) ) ?

Perhaps the questions look silly. Thank you very much for the help.

Regards,
Edmond

[Plater]

You should really step back higher in your code and find your Main() function.
It has you arguments and will allow you to do some proccessing before deciding to load a form or not.
(In vs2005 a class file called Program.cs is created to hold your main() function)

2) if you look up in msdn on those two things you will probably see that one maps back to the other, or that they map back to a common source.

3) In the properties of your project will be a section where you can stick command line arguments

4)if your application type is set to "windows application" (which it probably is) then a console window will not appear.
HOWEVER, when in debug mode, the IDE acts as a console window and you just have to change the tab to "Output"