VC中树形控件如何插入一个项到另一个项中成为他的子项？

首先要设置它的属性：

 DWORD TCstyle = GetWindowLong(this->m_hWnd, GWL_STYLE)

 TCstyle |= TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT | TVS_EDITLABELS | TVS_SHOWSELALWAYS 

 SetWindowLong(this->m_hWnd, GWL_STYLE, TCstyle)

然后插入一项：

HTREEITEM PItem = InsertItem(strtmp, 0, 0)

再就可以插入一个子项了：

InsertItem(mstrtmp, 0, 0, PItem)

strtmp和mstrtmp是要插入的字符串。

树状结构使用treeview实现，控件添加方法：右击“工具箱”-“部件”-microsoft windows common controls 6.0-确定，应用

下面是简单的添加删除方法，

Option Explicit

‘添加项目

Private Sub Command1_Click()

Dim nodx As Node

Set nodx = TreeView1.Nodes.Add(, , "zf", "紫风无痕关系（双击收起）")

Set nodx = TreeView1.Nodes.Add("zf", tvwChild, "zfwife", "老婆")

Set nodx = TreeView1.Nodes.Add("zf", tvwChild, "zflover", "情人")

Set nodx = TreeView1.Nodes.Add("zf", tvwChild, "zffriend", "朋友")

Set nodx = TreeView1.Nodes.Add("zfwife", tvwChild, "lp1", "大老婆")

Set nodx = TreeView1.Nodes.Add("zfwife", tvwChild, "lp2", "二老婆")

Set nodx = TreeView1.Nodes.Add("zfwife", tvwChild, "lp3", "三老婆")

Set nodx = TreeView1.Nodes.Add("zfwife", tvwChild, "lp4", "四老婆")

Set nodx = TreeView1.Nodes.Add("zfwife", tvwChild, "lp5", "五老婆")

Set nodx = TreeView1.Nodes.Add("zflover", tvwChild, "qr1", "1号情人")

Set nodx = TreeView1.Nodes.Add("zflover", tvwChild, "qr2", "2号情人")

Set nodx = TreeView1.Nodes.Add("zflover", tvwChild, "qr3", "3号情人")

Set nodx = TreeView1.Nodes.Add("zffriend", tvwChild, "py1", "张三")

Set nodx = TreeView1.Nodes.Add("zffriend", tvwChild, "py2", "李四")

Set nodx = TreeView1.Nodes.Add("zffriend", tvwChild, "py3", "王麻子")

Set nodx = TreeView1.Nodes.Add("py1", tvwChild, "pylp1", "张三的老婆")

Set nodx = TreeView1.Nodes.Add("py1", tvwChild, "pylp2", "张三的孩子")

nodx.EnsureVisible

End Sub

'删除代码

Private Sub Command2_Click()

MsgBox ("将要删除" &TreeView1.SelectedItem.Text)

TreeView1.Nodes.Remove (TreeView1.SelectedItem.Index)

End Sub

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