Starting an exe with args

Question

Hey

Im calling my App from another project with an arg. The App being opened is checking the arg to valid it can be opened. Something like this-

The code in app1 calling App2 with args

Dim App As New Process()  
App.StartInfo.FileName = ""C:\PathToMyApp.exe"  
App.StartInfo.Arguments = "Argument1"  
App.Start()  

In the App that is being opened with the args, the code is this-

Private Sub MyApp_Startup(ByVal sender As Object, ByVal e As StartupEventArgs) Handles Me.Startup  
  
Dim val As String = String.Empty  
For Each arg As String In e.CommandLine  
   val = CType(arg.ToString, String)  
Next  
  
'Do something to validate the incoming arg  
End Sub  

My question is, if i want to pass multiple args, do i pass a single string from App1 in the 'App.StartInfo.Arguments'? Something like-
"Argument1, Argument2, Argument3"

My other question is, When im splitting the arguments in the receiving App2, Is the args an array that i can split or is a simple case of splitting the string at the comma?

Thanks

Answer 1

Hey

I found my answer-

Send the args as a single string separated with a comma. this can also be a constructed string as long as the Argument is a string

 Dim App As New Process()  
 App.StartInfo.FileName = "C:\PathToMyApp.exe"  
 App.StartInfo.Arguments = "Argument1, Argument2, False, etc"  
 App.Start()  

Get each arg from the array in your receiving App
Ignore Arg(0) as this is usually the path of the App being opened

 Private Sub MyApp_Startup(ByVal sender As Object, ByVal e As StartupEventArgs) Handles Me.Startup  
          
    Dim args As String() = System.Environment.GetCommandLineArgs  
      
    Dim GetArg1 As String = args(1)  
    Dim GetArg2 As String = Args(2)  
    Dim GetArg3 As Boolean= CType(Args(3), Boolean)  
    Dim GetArg4 As String = Args(4)  
  
 End Sub