如果ListBox是单选状态,可以通过SelectedItem获取
那么当ListBox是多选状态时,如何获取最新选择项的索引.

Dim ss As New ArrayList
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
If ss.Count > 0 Then
Dim j As Integer
For j = 0 To ListBox1.SelectedItems.Count - 1
If ss.Contains(ListBox1.SelectedItems(j)) = False Then
MessageBox.Show(ListBox1.SelectedItems(j).ToString)
End If
Next
Else
MessageBox.Show(ListBox1.SelectedItem.ToString)
End If
ss.Clear()
ss.AddRange(ListBox1.SelectedItems)
End Sub

好办法!!!

真奇怪,VB6.0中ListIndex是不用这么复杂就可以实现的!

不用这么麻烦吧,呵呵
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
For Each i As Integer In ListBox1.SelectedIndices
MsgBox(i)
Next
End Sub

ListBox1.SelectedItem.ToString

请看清楚题目意思
当ListBox是多选状态时,如何获取最新选择项的索引
vb.net我也是学不久，只能有到上面的笨拙方法实现。。