VS之treeview使用
本文简单地介绍下VS的treeview使用：包括属性设置、单击事件、双击事件、右键弹出菜单等。
使用工具：VS2008
使用语言：C++
开发步骤：
1.新建单文档程序，View派生于TreeView
2.添加图片资源，用于每一项文字前的图标
3.添加菜单资源，用于右键弹出
4.设置属性
void CTreeViewDemoView::OnInitialUpdate()
{
CTreeView::OnInitialUpdate();
//属性
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwStyle = GetWindowLong(tree,GWL_STYLE);
dwStyle |= TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT | TVS_SHOWSELALWAYS;
SetWindowLong(tree,GWL_STYLE,dwStyle);
//菜单
m_menu.LoadMenu(IDR_MENU1);
tree.SetMenu(&m_menu);
//图标
m_ImageList.Create(IDB_BITMAP1,10,10,RGB(255,255,255));
tree.SetImageList(&m_ImageList,LVSIL_NORMAL);
//字体
CFont font;
font.CreateFont(
15,
0,
0,
0,
FW_NORMAL,
FALSE,
FALSE,
0,
ANSI_CHARSET,
OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS,
_T("宋体"));
tree.SetFont(&font);
//更新界面
UpdateTree();
}
5.更新数据
void CTreeViewDemoView::UpdateTree(void)
{
CTreeCtrl& tree = GetTreeCtrl();
tree.DeleteAllItems();
CString str = _T("");
int i=0, cnt = 0;
HTREEITEM root,sub;
str = _T("View1");
root = tree.InsertItem(str,0,0,TVI_ROOT);
tree.SetItemData(root,VIEW1_ROOT);
m_TreeItem1 = root;
cnt = 2;
for(i=0; i<cnt; i++)
{
str.Format(_T("View1 %d"),i);
sub = tree.InsertItem(str,1,1,m_TreeItem1);
tree.SetItemData(sub,VIEW1_SUB);
}
tree.Expand(m_TreeItem1,TVE_EXPAND);
str = _T("View2");
root = tree.InsertItem(str,2,2,TVI_ROOT);
tree.SetItemData(root,VIEW2_ROOT);
m_TreeItem2 = root;
cnt = 3;
for(i=0; i<cnt; i++)
{
str.Format(_T("View2 %d"),i);
sub = tree.InsertItem(str,3,3,m_TreeItem2);
tree.SetItemData(sub,VIEW2_SUB);
}
tree.Expand(m_TreeItem2,TVE_EXPAND);
}
6.单击事件
void CTreeViewDemoView::OnNMClick(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowView(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowView(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CString str = _T("");
switch(dwData)
{
case VIEW1_ROOT:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW1_SUB:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_ROOT:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_SUB:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
default:
break;
}
}
7.双击事件
void CTreeViewDemoView::OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowDlg(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowDlg(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CString str = _T("");
switch(dwData)
{
case VIEW1_ROOT:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW1_SUB:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_ROOT:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_SUB:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
default:
break;
}
}
8.右击事件
void CTreeViewDemoView::OnNMRClick(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowMenu(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowMenu(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CMenu* pSubMenu = NULL;
switch(dwData)
{
case VIEW1_ROOT:
pSubMenu = m_menu.GetSubMenu(0);
break;
case VIEW1_SUB:
pSubMenu = m_menu.GetSubMenu(0);
break;
case VIEW2_ROOT:
pSubMenu = m_menu.GetSubMenu(1);
break;
case VIEW2_SUB:
pSubMenu = m_menu.GetSubMenu(1);
break;
default:
break;
}
if(pSubMenu)
{
CPoint CurSorPoint;
GetCursorPos(&CurSorPoint);
pSubMenu->TrackPopupMenu(TPM_LEFTALIGN,CurSorPoint.x,CurSorPoint.y,this);
}
}
void CTreeViewDemoView::OnTest11()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第一项第一个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest12()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第一项第二个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest21()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第二项第一个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest22()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第二项第二个");
AfxMessageBox(str);
}
9.文档结构
10.总代码如下
TreeViewDemoView.h
// TreeViewDemoView.h : CTreeViewDemoView 类的接口
//
#pragma once
//View1
#define VIEW1_ROOT 0x10
#define VIEW1_SUB 0x11
//View2
#define VIEW2_ROOT 0x20
#define VIEW2_SUB 0x21
class CTreeViewDemoView : public CTreeView
{
protected: // 仅从序列化创建
CTreeViewDemoView();
DECLARE_DYNCREATE(CTreeViewDemoView)
// 属性
public:
CTreeViewDemoDoc* GetDocument() const;
// 操作
public:
// 重写
public:
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
virtual void OnInitialUpdate(); // 构造后第一次调用
// 实现
public:
virtual ~CTreeViewDemoView();
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif
protected:
// 生成的消息映射函数
protected:
DECLARE_MESSAGE_MAP()
public:
void UpdateTree(void);
private:
CImageList m_ImageList;//图标
CMenu m_menu;//菜单
HTREEITEM m_TreeItem1;
HTREEITEM m_TreeItem2;
public:
afx_msg void OnNMClick(NMHDR *pNMHDR, LRESULT *pResult);
void ShowView(HTREEITEM select_item);
afx_msg void OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult);
void ShowDlg(HTREEITEM select_item);
afx_msg void OnNMRClick(NMHDR *pNMHDR, LRESULT *pResult);
void ShowMenu(HTREEITEM select_item);
afx_msg void OnTest11();
afx_msg void OnTest12();
afx_msg void OnTest21();
afx_msg void OnTest22();
};
#ifndef _DEBUG // TreeViewDemoView.cpp 中的调试版本
inline CTreeViewDemoDoc* CTreeViewDemoView::GetDocument() const
{ return reinterpret_cast<CTreeViewDemoDoc*>(m_pDocument); }
#endif
TreeViewDemoView.cpp
// TreeViewDemoView.cpp : CTreeViewDemoView 类的实现
//
#include "stdafx.h"
#include "TreeViewDemo.h"
#include "TreeViewDemoDoc.h"
#include "TreeViewDemoView.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CTreeViewDemoView
IMPLEMENT_DYNCREATE(CTreeViewDemoView, CTreeView)
BEGIN_MESSAGE_MAP(CTreeViewDemoView, CTreeView)
ON_NOTIFY_REFLECT(NM_CLICK, &CTreeViewDemoView::OnNMClick)
ON_NOTIFY_REFLECT(NM_DBLCLK, &CTreeViewDemoView::OnNMDblclk)
ON_NOTIFY_REFLECT(NM_RCLICK, &CTreeViewDemoView::OnNMRClick)
ON_COMMAND(ID_TEST11, &CTreeViewDemoView::OnTest11)
ON_COMMAND(ID_TEST12, &CTreeViewDemoView::OnTest12)
ON_COMMAND(ID_TEST21, &CTreeViewDemoView::OnTest21)
ON_COMMAND(ID_TEST22, &CTreeViewDemoView::OnTest22)
END_MESSAGE_MAP()
// CTreeViewDemoView 构造/析构
CTreeViewDemoView::CTreeViewDemoView()
{
// TODO: 在此处添加构造代码
}
CTreeViewDemoView::~CTreeViewDemoView()
{
}
BOOL CTreeViewDemoView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: 在此处通过修改
// CREATESTRUCT cs 来修改窗口类或样式
return CTreeView::PreCreateWindow(cs);
}
void CTreeViewDemoView::OnInitialUpdate()
{
CTreeView::OnInitialUpdate();
//属性
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwStyle = GetWindowLong(tree,GWL_STYLE);
dwStyle |= TVS_HASBUTTONS | TVS_HASLINES | TVS_LINESATROOT | TVS_SHOWSELALWAYS;
SetWindowLong(tree,GWL_STYLE,dwStyle);
//菜单
m_menu.LoadMenu(IDR_MENU1);
tree.SetMenu(&m_menu);
//图标
m_ImageList.Create(IDB_BITMAP1,10,10,RGB(255,255,255));
tree.SetImageList(&m_ImageList,LVSIL_NORMAL);
//字体
CFont font;
font.CreateFont(
15,
0,
0,
0,
FW_NORMAL,
FALSE,
FALSE,
0,
ANSI_CHARSET,
OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY,
DEFAULT_PITCH | FF_SWISS,
_T("宋体"));
tree.SetFont(&font);
//更新界面
UpdateTree();
}
// CTreeViewDemoView 诊断
#ifdef _DEBUG
void CTreeViewDemoView::AssertValid() const
{
CTreeView::AssertValid();
}
void CTreeViewDemoView::Dump(CDumpContext& dc) const
{
CTreeView::Dump(dc);
}
CTreeViewDemoDoc* CTreeViewDemoView::GetDocument() const // 非调试版本是内联的
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTreeViewDemoDoc)));
return (CTreeViewDemoDoc*)m_pDocument;
}
#endif //_DEBUG
// CTreeViewDemoView 消息处理程序
void CTreeViewDemoView::UpdateTree(void)
{
CTreeCtrl& tree = GetTreeCtrl();
tree.DeleteAllItems();
CString str = _T("");
int i=0, cnt = 0;
HTREEITEM root,sub;
str = _T("View1");
root = tree.InsertItem(str,0,0,TVI_ROOT);
tree.SetItemData(root,VIEW1_ROOT);
m_TreeItem1 = root;
cnt = 2;
for(i=0; i<cnt; i++)
{
str.Format(_T("View1 %d"),i);
sub = tree.InsertItem(str,1,1,m_TreeItem1);
tree.SetItemData(sub,VIEW1_SUB);
}
tree.Expand(m_TreeItem1,TVE_EXPAND);
str = _T("View2");
root = tree.InsertItem(str,2,2,TVI_ROOT);
tree.SetItemData(root,VIEW2_ROOT);
m_TreeItem2 = root;
cnt = 3;
for(i=0; i<cnt; i++)
{
str.Format(_T("View2 %d"),i);
sub = tree.InsertItem(str,3,3,m_TreeItem2);
tree.SetItemData(sub,VIEW2_SUB);
}
tree.Expand(m_TreeItem2,TVE_EXPAND);
}
void CTreeViewDemoView::OnNMClick(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowView(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowView(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CString str = _T("");
switch(dwData)
{
case VIEW1_ROOT:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW1_SUB:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_ROOT:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_SUB:
str = _T("您点击了：") + sText;
AfxMessageBox(str);
break;
default:
break;
}
}
void CTreeViewDemoView::OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowDlg(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowDlg(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CString str = _T("");
switch(dwData)
{
case VIEW1_ROOT:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW1_SUB:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_ROOT:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
case VIEW2_SUB:
str = _T("您双击了双击了：") + sText;
AfxMessageBox(str);
break;
default:
break;
}
}
void CTreeViewDemoView::OnNMRClick(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
CTreeCtrl& tree = GetTreeCtrl();
CPoint CursorPoint;
if(!GetCursorPos(&CursorPoint))
{
return;
}
tree.ScreenToClient(&CursorPoint);
UINT uFlag=0;
HTREEITEM select_item = tree.HitTest(CursorPoint,&uFlag);
if((NULL != select_item) && (TVHT_ONITEM&uFlag))
{
tree.Select(select_item,TVGN_CARET);
}
else
{
return;
}
ShowMenu(select_item);
*pResult = 0;
}
void CTreeViewDemoView::ShowMenu(HTREEITEM select_item)
{
CTreeCtrl& tree = GetTreeCtrl();
DWORD dwData = tree.GetItemData(select_item);
CString sText = tree.GetItemText(select_item);
CMenu* pSubMenu = NULL;
switch(dwData)
{
case VIEW1_ROOT:
pSubMenu = m_menu.GetSubMenu(0);
break;
case VIEW1_SUB:
pSubMenu = m_menu.GetSubMenu(0);
break;
case VIEW2_ROOT:
pSubMenu = m_menu.GetSubMenu(1);
break;
case VIEW2_SUB:
pSubMenu = m_menu.GetSubMenu(1);
break;
default:
break;
}
if(pSubMenu)
{
CPoint CurSorPoint;
GetCursorPos(&CurSorPoint);
pSubMenu->TrackPopupMenu(TPM_LEFTALIGN,CurSorPoint.x,CurSorPoint.y,this);
}
}
void CTreeViewDemoView::OnTest11()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第一项第一个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest12()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第一项第二个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest21()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第二项第一个");
AfxMessageBox(str);
}
void CTreeViewDemoView::OnTest22()
{
// TODO: 在此添加命令处理程序代码
CString str = _T("菜单第二项第二个");
AfxMessageBox(str);
}
好了，关于VS的treeview使用就到这了。
源码下载