paramarray

[Guest]

Hi everyone

In VB6,paramarray parameter is passed using byref,but in VB.NET,using byval.How can I get back the changed value of the paramarray parameter

My work case in vb.net like this
----------------------------------------------------
Function mytestmethod(paramarray byval arg() as object
arg(0)=1
arg(1)="abc
End Functio

Sub mycalling(
dim a as integer=6
dim b as string="xyz
mytestmethod (a,b
msgbox (a
msgbox (b
End Su
----------------------------------------------------
the expected value of a,b is 12,"abc";but it remains 66 or "xyz"

Who can help me

Best regard

pete

 

[Guest]

Try using an ArrayList instead. You can pass it byref or byval as you wish

Mariano.

 

[Armin Zingler]

In VB6,paramarray parameter is passed using byref,but in VB.NET,using
byval.How can I get back the changed value of the paramarray
parameter?

You can't:
http://msdn.microsoft.com/library/en-us/vbcon/html/vbup1003.asp

 

[Herfried K. Wagner [MVP]]

* "=?Utf-8?B?UGV0ZXI=?=" <[email protected]> scripsit:
[...]

I replied in the VB Upgrade group. Please do not multipost.

 

[Cor]

Hi Peter,

I think exactly as you tell it your function (what is a sub)

The sample shows you that the byval is a reference of the object.

Sub mytestmethod(byval arg() as object)

arg(0)=12
arg(1)="abc"
End Function

Sub mycalling()
Dim obj(2) As Object
obj(0) = 66
obj(1) = "xyz"
mytestmethod(obj)
MsgBox(obj(0))
MsgBox(obj(1))
end sub

I hope this helps?

Cor

 

[Cor]

Hi Herfried,

What has this to do with upgrade, your message normaly is always

You will more likely get an answer here:

VB languages

<
Web interface:

<http://msdn.microsoft.com/newsgroups/default.asp?url=/newsgroups/loadframes
..asp?icp=msdn&slcid=us&newsgroup=microsoft.public.dotnet.languages.vb>

 

[Herfried K. Wagner [MVP]]

What has this to do with upgrade, your message normaly is always

The OP included some VB6 code and wanted to upgrade it to VB.NET.

;-)

You will more likely get an answer here:

VB languages

<
Web interface:

<http://msdn.microsoft.com/newsgroups/default.asp?url=/newsgroups/loadframes
.asp?icp=msdn&slcid=us&newsgroup=microsoft.public.dotnet.languages.vb>