Sub Form Getting Values from the Parent Form

[eBob.com]

I have a "parent" form (if that's the right terminology), Form1. I
declare two public values in the parent form :
Public Class Form1
Inherits System.Windows. Forms.Form
Public CurDir As String = Directory.GetCu rrentDirectory( ) 'used
by FormGetJobOutpu t
Public PubUser As String 'tbxUser.text value for subForms

In the "child" form, I call it FormGetJobOutpu t, I reference these two
public values ...
Sub CreateGetJobOut putScript(ByVal filename As String)
Dim swScriptFile As New System.IO.Strea mWriter(CurDir( ) + "\"
+ filename, True)
swScriptFile.Wr iteLine("open xxx.xxxx.com")
swScriptFile.Wr iteLine(PubUser )

The reference to CurDir works fine. (Although there is something a
bit strange about it. I type "CurDir" but VS adds the parens. I have
no idea why. But VB.Net seems to be happy with that syntax and it
executes fine. But the reference to PubUser results in error message
"Name 'PubUser' is not declared. If I use Form1.PubUser I get error
"Reference to a non-shared member requires an object reference."
I also tried a different declare for PubUser (Public PubUser As String
= "") but that also did not help.

What do I have to do to use PubUser in the child form? Why can I
reference CurDir but not PubUser?

Thanks, Bob

[Chris]

Re: Sub Form Getting Values from the Parent Form

eBob.com wrote:[color=blue]
> I have a "parent" form (if that's the right terminology), Form1. I
> declare two public values in the parent form :
> Public Class Form1
> Inherits System.Windows. Forms.Form
> Public CurDir As String = Directory.GetCu rrentDirectory( ) 'used
> by FormGetJobOutpu t
> Public PubUser As String 'tbxUser.text value for subForms
>
> In the "child" form, I call it FormGetJobOutpu t, I reference these two
> public values ...
> Sub CreateGetJobOut putScript(ByVal filename As String)
> Dim swScriptFile As New System.IO.Strea mWriter(CurDir( ) + "\"
> + filename, True)
> swScriptFile.Wr iteLine("open xxx.xxxx.com")
> swScriptFile.Wr iteLine(PubUser )
>
> The reference to CurDir works fine. (Although there is something a
> bit strange about it. I type "CurDir" but VS adds the parens. I have
> no idea why. But VB.Net seems to be happy with that syntax and it
> executes fine. But the reference to PubUser results in error message
> "Name 'PubUser' is not declared. If I use Form1.PubUser I get error
> "Reference to a non-shared member requires an object reference."
> I also tried a different declare for PubUser (Public PubUser As String
> = "") but that also did not help.
>
> What do I have to do to use PubUser in the child form? Why can I
> reference CurDir but not PubUser?
>
> Thanks, Bob[/color]

Your child form has to have a reference to the parent. Form1.PubUser
doesn't work cause Form1 is a class definition not an instatance of the
class. How are you opening child form? You could do something like:

Class Child
Parent as Form1
...... All your stuff
public shadows sub ShowDialog(Valu e as Form1)
Parent = Value
End Sub

Sub CreateGetJobOut putScript(ByVal filename As String)
Dim swScriptFile As New System.IO.Strea mWriter(Parnet. CurDir()
+ "\" + filename, True)
swScriptFile.Wr iteLine("open xxx.xxxx.com")
swScriptFile.Wr iteLine(Parnet. PubUser)
..........
End sub
End Class

This way whenever you open Child you have to pass in his parent.

Lots of other ways to do it, can you make a property to hold it. There
may be an owner property that will hold it already but I can't remember
off the top of my head...

Chris

[Cor Ligthert [MVP]]

Re: Sub Form Getting Values from the Parent Form

eBob,

Two points

What is your currentdirector y. If it is something that you want to save for
the user than a good place for that is the registry, when the user than
restart it has a nice start point without intitializing that again.

Your current user can you save in by instance a shared sub.
\\\
Public Class Variables
Private Shared mUserName As String
Friend Shared Property Username() As String
Get
Return mUserName
End Get
Set(ByVal Value As String)
mUserName = Value
End Set
End Property
End Class
////

Use this only for that what is really needed on all forms. It is a fixed
part of your program and uses therefore all the time the memory.

I hope this helps,

Cor

[eBob.com]

Re: Sub Form Getting Values from the Parent Form (Thanks)

On Thu, 25 Aug 2005 23:35:11 -0400, eBob.com
<eBob.com@total lyfakeisp.com> wrote:

Thank you Chris and Cor. I appreciate your help. But you were both a
bit over my head. I am a real novice. I finally remembered a
technique I've used in the past. I declared some Public variables in
the child class and set them in the parent form after instantiating
the child but before the child.Show()

Thanks, Bob

[Cor Ligthert [MVP]]

Re: Sub Form Getting Values from the Parent Form (Thanks)

erBob,

Probably by *putting* it in that form

\\\
dim frm as new form2
frm2.curdir = curdir
frm2.user = user
frm2.showdialog
///

I hope this helps,

Cor