MFC TREE控件实现父子联动选中功能：即父选中则子全选中，子全选中则父选中参考代码

效果图：

注：点击时需点击文字，暂时没去研究其原因

源代码下载网址：https://download.youkuaiyun.com/download/zggzgw/10448400

 

// TreeSelectDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "TreeSelect.h"
#include "TreeSelectDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif
#define UPDATECHECK		WM_USER + 113

// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialogEx
{
public:
	CAboutDlg();

// 对话框数据
#ifdef AFX_DESIGN_TIME
	enum { IDD = IDD_ABOUTBOX };
#endif

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持
	
// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CTreeSelectDlg 对话框



CTreeSelectDlg::CTreeSelectDlg(CWnd* pParent /*=NULL*/)
	: CDialogEx(IDD_TREESELECT_DIALOG, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTreeSelectDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_TREE1, selectTree);
}

BEGIN_MESSAGE_MAP(CTreeSelectDlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_NOTIFY(NM_CLICK, IDC_TREE1, &CTreeSelectDlg::OnClickTree1)
	ON_WM_LBUTTONDOWN()

	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, &CTreeSelectDlg::OnSelchangedTree1)
END_MESSAGE_MAP()


// CTreeSelectDlg 消息处理程序

BOOL CTreeSelectDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// 将“关于...”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。  当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	
	HTREEITEM hCataItem; // 可表示任一分类节点的句柄 
	HTREEITEM hArtItem; // 可表示任一文章节点的句柄  
	hRoot = selectTree.InsertItem(_T("All"), 0, 0);
	selectTree.SetItemData(hRoot, 111);
	CString str;
	for (int i = 1;i < 12;i++)
	{
		str.Format(_T("LIne %d-P"), i);
		hCataItem = selectTree.InsertItem(str, 1, 1, hRoot, TVI_LAST);
		for (int j = 1;j <= 12;j++)
		{
			
			str.Format(_T("Table %d"), j);
			hArtItem = selectTree.InsertItem(str, 1, 1, hCataItem, TVI_LAST);
			for (int k = 1;k <= 12;k++)
			{
				str.Format(_T("PC %d"), k);
				selectTree.InsertItem(str, 1, 1, hArtItem, TVI_LAST);
			}
		}

	}
	for (int i = 1;i < 12;i++)
	{
		str.Format(_T("LIne %d-D"), i);
		hCataItem = selectTree.InsertItem(str, 1, 1, hRoot, TVI_LAST);
		for (int j = 1;j <= 12;j++)
		{
			str.Format(_T("Table %d"), j);
			hArtItem = selectTree.InsertItem(str, 1, 1, hCataItem, TVI_LAST);
			for (int k = 1;k <= 12;k++)
			{
				str.Format(_T("PC %d"), k);
				selectTree.InsertItem(str, 1, 1, hArtItem, TVI_LAST);
			}
		}

	}
	

	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CTreeSelectDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialogEx::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。  对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CTreeSelectDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作区矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialogEx::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CTreeSelectDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


//点击Tree控件时检测项进行选择
void CTreeSelectDlg::OnClickTree1(NMHDR *pNMHDR, LRESULT *pResult)
{
	// TODO: 在此添加控件通知处理程序代码
	//MessageBox(_T("Clic"), _T("提示"));
	CPoint pt = GetCurrentMessage()->pt; //获取当前鼠标点击消息的坐标点  
	selectTree.ScreenToClient(&pt);      //将鼠标的屏幕坐标，转换成树形控件的客户区坐标  

	 _hItem = selectTree.HitTest(pt, &_uFlags);//然后做点击测试  
	
	if ((_hItem != NULL) && (TVHT_ONITEM & _uFlags))//如果点击的位置是在节点位置上面  
	{
		selectTree.SelectItem(_hItem);

	}
	OnSelchangedTree1(0, 0);//虽然点击了但选择项没有改变，手动调用改变选择

	*pResult = 0;
}


void CTreeSelectDlg::OnSelchangedTree1(NMHDR *pNMHDR, LRESULT *pResult)
{
	if (pNMHDR)
	{
		LPNMTREEVIEW pNMTreeView = reinterpret_cast<LPNMTREEVIEW>(pNMHDR);
	}
	
	// TODO: 在此添加控件通知处理程序代码

	BOOL checkState = FALSE;
	if ((_hItem != NULL) && (TVHT_ONITEM & _uFlags))//如果点击的位置是在节点位置上面  
	{
		selectTree.SelectItem(_hItem);
		checkState = selectTree.GetCheck(_hItem);
		if (checkState)//取消选择
		{
			selectTree.SelectItem(_hItem);
			selectTree.SetCheck(_hItem, 0);
			SelectChildBox(_hItem,0);//取消选择子选项的所有CHECK BOX
			CancelParentAll(_hItem);//取消父的所选选项
			_hItem = NULL;
			_uFlags = 0;
		}
		else
		{
			selectTree.SelectItem(_hItem);
			selectTree.SetCheck(_hItem, 1);
			SelectChildBox(_hItem,1);//选择子选项的所有CHECK BOX
			SelectlParentAll(_hItem);//判断兄弟选项是否全选，是则选中父的所有选项
			_hItem = NULL;
			_uFlags = 0;
		}
	}
	if (pResult)
	{
		*pResult = 0;
	}
	
}
//选中指定ITEM的所有子项
void CTreeSelectDlg::SelectChildBox(HTREEITEM pHtreeitem,int n)
{
	HTREEITEM br = selectTree.GetChildItem(pHtreeitem);
	while (br)
	{
		selectTree.SetCheck(br, n);
		SelectChildBox(br, n);
		br = selectTree.GetNextSiblingItem(br);
		
	}
	UpdateData(1);
	return;
}
//取消父的所有选项状态
void CTreeSelectDlg::CancelParentAll(HTREEITEM pHtreeitem)
{
	if (pHtreeitem)
	{
		selectTree.SetCheck(pHtreeitem, 0);
		HTREEITEM hp = selectTree.GetParentItem(pHtreeitem);
		CancelParentAll(hp);
	}
}
//选择父的所有选项状态
void CTreeSelectDlg::SelectlParentAll(HTREEITEM pHtreeitem)
{
	BOOL isAll = TRUE, isAll1 = TRUE, isAll2 = TRUE;
	BOOL RET;
	if (pHtreeitem)
	{

		isAll1 = CheckNextSiblingItem(pHtreeitem);
		isAll2 = CheckPrevSiblingItem(pHtreeitem);
		if (isAll1&&isAll2)
		{
			isAll = TRUE;
		}
		else
		{
			isAll = FALSE;
		}
		if (isAll)
		{
			HTREEITEM hp = selectTree.GetParentItem(pHtreeitem);
			selectTree.SetCheck(hp, 1);
			SelectlParentAll(hp);
		}
		
	}

}
BOOL CTreeSelectDlg::CheckNextSiblingItem(HTREEITEM pHtreeitem)
{
	BOOL RET;
	RET = selectTree.GetCheck(pHtreeitem);
	if (RET == FALSE)
	{
		return  FALSE;
	}
	HTREEITEM br = selectTree.GetNextSiblingItem(pHtreeitem);
	while (br)
	{

		RET = selectTree.GetCheck(br);
		if (RET == FALSE)
		{
			return FALSE;
		}
		br = selectTree.GetNextSiblingItem(br);

	}
	return TRUE;
}
BOOL CTreeSelectDlg::CheckPrevSiblingItem(HTREEITEM pHtreeitem)
{
	BOOL RET;
	RET = selectTree.GetCheck(pHtreeitem);
	if (RET == FALSE)
	{
		return FALSE;
	}
	HTREEITEM br = selectTree.GetPrevSiblingItem(pHtreeitem);
	while (br)
	{

		RET = selectTree.GetCheck(br);
		if (RET == FALSE)
		{
			return FALSE;
		}
		br = selectTree.GetPrevSiblingItem(br);

	}
	return TRUE;
}
LRESULT CTreeSelectDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	// TODO: 在此添加专用代码和/或调用基类
	switch (message)
	{
	case UPDATECHECK:
		
		break;
	}
	return CDialogEx::WindowProc(message, wParam, lParam);
}