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copied!<p>Change this code </p> <pre><code>For i = ListView2.Items.Count - 1 To 0 Step -1 ListView2.Items.Remove(ListView2.Items(i)) Next i </code></pre> <p>to</p> <pre><code>If ListView2.Items.Count > 0 Then For i = ListView2.Items.Count - 1 To 0 Step - 1 ListView2.Items.Remove(ListView2.Items(i)) Next i End If </code></pre> <h1>Update</h1> <p>in this code</p> <pre><code>Private Sub ListView2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListView2.SelectedIndexChanged If ListView2.Items.Count > 0 Then TransactionID.Text = ListView2.SelectedItems(0).Text Label6.Left -= 190 Label7.Left -= 190 GroupBox1.Left -= 190 ListView2.Left -= 190 Button2.Visible = True ListView1.Visible = True GroupBox2.Visible = True Label4.Visible = True Label5.Visible = True ListView2.Enabled = False AddHandler ListView2.SelectedIndexChanged, AddressOf ListView2_SelectedIndexChanged End If End Sub </code></pre> <p>the line that says</p> <pre><code> ListView2.Enabled = False </code></pre> <p>disables the ListView2, so that should explain WHY and WHERE the ListView2 is being disabled</p> <p>Also... This line</p> <pre><code>AddHandler ListView2.SelectedIndexChanged, AddressOf ListView2_SelectedIndexChanged </code></pre> <p>attempts to assign an event handler to the same routine it is declared in!</p> <pre><code>Private Sub ListView2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListView2.SelectedIndexChanged </code></pre> <p>So chances are it probably does nothing new at all.</p>

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