Could someone please explain this for me

[Savil]

Hi
I have a listview control which is populated by an sql serer source which works fine. What I want is when the control is clicked it shows the value in a message box. The first time after the form is opened it works but if you click the control again I get the message

"Specified argument was out of the range of valid values."
I don't understand what this means. Here is the code for the listview control

Private Sub lstvwUsers_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstvwUsers.SelectedIndexChanged

Dim lvi As ListViewItem = Me.lstvwUsers.SelectedItems(0)
MsgBox(lvi.Text.Trim())
End Sub


Thanks

 

[ThatRickGuy]

Interesting. I would guess that either the second click is not selecting an item, or that the event fires twice. Once for the deselection of the initial selection, and again for the selection of the second selection.

In either case, check the .Length property of the .SelectedItems collection to make sure there is an item selected before trying to access it.

-Rick

VB.Net Forum forum796 forum855 ASP.NET Forum
I believe in killer coding ninja monkeys.

 

[techsmith]

The event does fire twice - to unselect and then select the new item.