change listbox's bgcolor

[frix199]

hey!

i have this code in form2 :

Dim main As New Form1
main.win.BackColor = main.win.BackColor.Black 'win is a listbox control

but it doesnt works and i dont know why

(when i try me.win.BackColor = me.win.BackColor.Black in the form1 it works)

Thanks!

[MetalKid]

main.win.BackColor = System.Drawing.Color.Black

[frix199]

still wont work....

[mpdeglau]

I think the issue is that you are creating a new instance of form1.

I am assuming that form1 opened form2 then an event occurs on form2 that cause the listbox on form1 to change colors.

There are a few ways to do this.
If the list box needs to change colors instantly you need to pass a reference of form1 to form2.
if the listbox doesn't need to change until after form2 closes you can have some sort of flag.

If I assume correctly tell me what needs to happen and if you need an example I will give you one. Or if I assumed wrong. Tell me exactly what you are trying to do.

[frix199]

i open the form2 with ShowDialog(), and i want to change the color of the listbox in form1.
it doesn't matter if it changes imediately or after form2 is closed...

thanks!

[mpdeglau]

On form2 create a color property. Then after the dilog closes set the listbox to that color

'on Form2
' both the private variable and the propertery are declared at the class level
Private _listBoxColor as Color = Color.White
 
Public Property ListBoxColor
  Get
      Return _ListBoxColor
  End Get
  Set(value As Color)
      _ListBOxColor = Value
  End Set
End Property
 
 
   'then where you have
   'main.win.BackColor = main.win.BackColor.Black 'win is a listbox control
   _ListBoxColor = Color.Black
 
 
'Form1 Class
 frm2.ShowDialog
 win.BackColor = frm2.ListBoxColor

[frix199]

this is what error i get:

'Set' parameter must have the same type as the containing property.

[mpdeglau]

Upps sorry.
declare the property like this

Public Property ListBoxColor [B]As Color[/B]
'everything else the same

[frix199]

i found another way, but yours also helped

thanks!

(HAHA im gonna rate you )