InvokeRequired Help

Question

Hello experts
I'm using this code to enable/disable controls in a thread:

Delegate Sub SetEnabledCallback(ByVal Enabled As Boolean)
Private Sub SetEnabled(ByVal Enabled As Boolean)

If PrintButton.InvokeRequired Then
Invoke(Sub() PrintButton.Enabled = Enabled)
Else
PrintButton.Enabled = Enabled
End If

Please advise how to perform this double inner check:

If MyComboBox.SelectedIndex = 0 Then
If MyCheckBox.InvokeRequired Then
Invoke(Sub() MyCheckBox.Enabled = Enabled)
Else
MyCheckBox.Enabled = Enabled
End If
End If

Answer 1

In my opinion, this should work:

Invoke( Sub( )  
      If MyComboBox.SelectedIndex = 0 Then  
         MyCheckBox.Enabled = Enabled  
      End If  
   End Sub  

The InvokeRequired is not checked because you are using threads. Even if Invoke is not needed, I do not think that using Invoke is an error.

Perhaps there are other opinions on this subject.