treedatadlg.h

有关树型控件的例子,是VC的对话框中实现从数据库中读取记录的实例

// TreeDataDlg.h : header file
//

#if !defined(AFX_TREEDATADLG_H__7B64FA95_B93F_4D23_B756_2D4754BB6C2E__INCLUDED_)
#define AFX_TREEDATADLG_H__7B64FA95_B93F_4D23_B756_2D4754BB6C2E__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CTreeDataDlg dialog

class CTreeDataDlg : public CDialog
{
// Construction
public:
	void TreeAddSubTree(CString ParTree,CString strChildTree,HTREEITEM hPartItem);
	CTreeDataDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CTreeDataDlg)
	enum { IDD = IDD_TREEDATA_DIALOG };
	CComboBox	m_ctrlComboCity;
	CTreeCtrl	m_ctrlTree;
	CString	m_strEdit;
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CTreeDataDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CTreeDataDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnSelchangedTree1(NMHDR* pNMHDR, LRESULT* pResult);
	afx_msg void OnClickTree1(NMHDR* pNMHDR, LRESULT* pResult);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
//-------------------------------------------------	
private:
	CString ReturnTreeChilds(HTREEITEM hP);
	int TreeSumRecordCount(CString strFieldValue);
	CString VariantToCString(VARIANT var);
	void TreeAddTree();
	
	HRESULT hRes;
	_RecordsetPtr m_TreeRecordset;    //用于创建一个查询记录集
//-------------------------------------------------
public:
//--------------------------------------------------------
	CImageList m_TreeBootImage;//Tree的图标
	CString TreeCurrent,TreeParent;//当前和父级项文本内容
	HTREEITEM hTreeCurrent,hTreeParent;//当前和父级项句柄
//--------------------------------------------------------
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TREEDATADLG_H__7B64FA95_B93F_4D23_B756_2D4754BB6C2E__INCLUDED_)