关于listview中checkbox的click事件问题

[sprite16]

我有一段代码
Private Sub ListView1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListView1.Click
Dim i As Long
Dim ZH As Double
ZH = 0
For i = 0 To Me.ListView1.Items.Count - 1
ZH = ZH + Me.ListView1.Items(i).SubItems(8).Text
Me.Label32.Text = ZH
Next i
End Sub

我想点击一行后，算这一行选中列的总和

现在的问题是，每次他是先进行这个CLICK事件，再把那行化上勾，所以每次最后选中的那一列都不在我的计算行列里，请问该如何解决？

换一个事件？换哪个那？

[SqlDataAdapter]

应该在ItemCheck事件写吧。

[SqlDataAdapter]

Private Sub ListView1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles ListView1.ItemCheck
Dim i As Long
Dim ZH As Double
ZH = 0
For i = 0 To Me.ListView1.CheckedItems.Count - 1
ZH = ZH + Me.ListView1.CheckedItems(i).SubItems(8).Text
Me.Label32.Text = ZH
Next i

End Sub