Listboxex update problem

[jaredthensomenumbers]

Hi

I'm creating an application in Visua Basic.NET

I created a listboxex, and I have a module that raises an event to update the listbox items.

When I use 'listboxex.items.clear' method in the event handler, the program crashes.

Thanking you in advance

Prompt replies would be very appreciated

Regards
Javad Moghisi

 

[jebenson]

Any error messages?

Can you show us the event handler code?

I used to rock and roll every night and party every day. Then it was every other day. Now I'm lucky if I can find 30 minutes a week in which to get funky. - Homer Simpson

 

[bclt]

Simple:

Module Module1
  Sub ClearItems()
    Form1[b].DefInstance[/b].List1.Items.Clear()
  End Sub
End Module

Works to you ?

 

[ca8msm]

My guess is it doensn't know abouth the instance of Form1 or DefInstance. As jebenson asked before what errors are you getting?

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[bclt]

Add the following region in the form1.
Replace the "Form1" with your form's name.

#Region "Def "
	Private Shared FormDefInstance As Form1
	Private Shared mInitializingDefInstance As Boolean
	Public Shared Property [b]DefInstance() As Form1[/b]
		Get
			If FormDefInstance Is Nothing OrElse FormDefInstance.IsDisposed Then
				InitializingDefInstance = True
				FormDefInstance = New Form1()
				InitializingDefInstance = False
			End If
			DefInstance = FormDefInstance
		End Get
		Set
			FormDefInstance = Value
		End Set
	End Property
#End Region