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VB.NET Listbox InvokeRequierd

Posted on 2013-01-07
4
447 Views
Last Modified: 2013-01-20
Hi, I have a problem..
this code works..
 Private Delegate Sub SetTextBoxTextInvoker(ByVal text As String)

  Private Sub SetTextBoxCom01(ByVal text As String)
        'If Me.uxCom1txt.InvokeRequired Then
        '    Me.uxCom1txt.Invoke(New SetTextBoxTextInvoker(AddressOf SetTextBoxCom01), text)
        'Else
        '    Me.uxCom1txt.ADD(text)
        'End If

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But I need to change to an listbox..
Can´t figure out how to get it to work..

        If LISTBOX1.add.InvokeRequired Then
            Me.LISTBOX1.Invoke(New SetTextBoxTextInvoker(AddressOf SetTextBoxCom01), text)
        Else
            Me.LISTBOX1.Text = text
        End If

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VB.NET Visual studio 2010
0
Comment
Question by:kavvis
  • 2
4 Comments
 
LVL 75

Assisted Solution

by:käµfm³d 👽
käµfm³d   👽 earned 250 total points
ID: 38751217
A ListBox doesn't have a Text property. Are you sure you didn't intend to add the incoming parameter to the Items collection?

e.g.

        If LISTBOX1.add.InvokeRequired Then
            Me.LISTBOX1.Invoke(New SetTextBoxTextInvoker(AddressOf SetTextBoxCom01), text)
        Else
            Me.LISTBOX1.Items.Add(text)
        End If

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0
 

Author Comment

by:kavvis
ID: 38751634
Hi I just tried to show an exampel.. I rally don"t know The syntax... :) that"s why I need help
0
 
LVL 85

Accepted Solution

by:
Mike Tomlinson earned 250 total points
ID: 38751906
You can do:
    Private Sub AddToListBox(ByVal text As String)
        If ListBox1.InvokeRequired Then
            Me.ListBox1.Invoke(New Action(Of String)(AddressOf AddToListBox), New Object() {text})
        Else
            Me.ListBox1.Items.Add(text)
        End If
    End Sub

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0
 

Author Closing Comment

by:kavvis
ID: 38798206
It´s seems to work.. But somehow I get problem when I trie to use the data later on.. but I have to se it..
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