Question

为什么vb6.0 treeview控件添加的父节点可以显示，但是子节点显示不出来？急求答案

代码如下：
Private Sub Form_Load()
TreeView1.LineStyle = tvwTreeLines
TreeView1.ImageList = ImageList1
TreeView1.Style = tvwTreelinesPlusMinusPictureText
Set nodx = TreeView1.Nodes.Add(, , "蒲子明", "蒲子明", 1)
Set nodx = TreeView1.Nodes.Add("蒲子明", tvwChild, "child01", "收件箱", 3)
Set nodx = TreeView1.Nodes.Add("蒲子明", tvwChild, "child02", "发件箱", 3)
End Sub

Answer 1

TreeView1.Nodes.Item(1).Expanded = True