help using do loop

[ziggystter2011]

Hi all

I am trying to copy the text from a listbox to a textbox using a timer. However when i run it all works fine intill i try and loop it then i get the following error message.

InvalidArgument=Value of '7' is not valid for 'SelectedIndex'.
Parameter name: SelectedIndex

the code i am using is

Error is raised when the last item in the listbox is selected.

Private curNum As Integer


If curNum = ListBox2.Items.Count Then
Timer2.Stop()
Else
TextBox3.Text = ListBox2.Items.Item(curNum).ToString
curNum += 1
ListBox2.SelectedIndex = (curNum)

any help with this would be great

thanks in advance





Private curNum As Integer

 

[JohnH]

ListBox.SelectedIndex Property (System.Windows.Forms)

Gets or sets the zero-based index of the currently selected item in a ListBox.

Your code exceeds the highest possible index that can be set.