CListCtrl中高亮插入行，条目上移下移

news2024/11/25 9:33:24

1. 样式修改

在这里插入图片描述

2. 关键代码

BOOL CMFCApplication3Dlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// 
	// 代码省略......
	//

	// 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
	m_btnMoveDown.EnableWindow(FALSE);
	m_btnMoveUp.EnableWindow(FALSE);
	m_MyListCtrl.InsertColumn(0, _T("测试"), 0, 100 );
	

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

void CMFCApplication3Dlg::OnBnClickedAddSomeItems()
{
	// TODO:  在此添加控件通知处理程序代码
	static std::default_random_engine dre(unsigned int(time(0)));
	std::uniform_int_distribution<int> uid(100, 999);
	CString strValue;
	strValue.Format(_T("测试文本--%d"), uid(dre));

	int nSelMark = m_MyListCtrl.GetSelectionMark();
	int nInsertIndex = m_MyListCtrl.GetSelectionMark();
	if (nInsertIndex < 0)
	{
		nInsertIndex = m_MyListCtrl.GetItemCount() - 1;
		if (nInsertIndex < 0) nInsertIndex = 0;
	}
	nInsertIndex += 1;
	int nNewIndex = m_MyListCtrl.InsertItem(nInsertIndex, strValue);

	//设置当前行高亮	
	m_MyListCtrl.SetSelectionMark(nNewIndex);
	m_MyListCtrl.SetItemState(nNewIndex,
		LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
	m_MyListCtrl.SetFocus();
	


}

//down
void CMFCApplication3Dlg::OnBnClickedMoveDown()
{
	int nSelIndex = m_MyListCtrl.GetSelectionMark();
	if (nSelIndex < 0 || nSelIndex >= m_MyListCtrl.GetItemCount() - 1)
	{
		return;
	}

	//将文本值与扩展数据交换
	int nNextIndex = nSelIndex + 1;
	CString strNextText = m_MyListCtrl.GetItemText(nNextIndex, 0);
	m_MyListCtrl.SetItemText(nNextIndex, 0, m_MyListCtrl.GetItemText(nSelIndex, 0));
	m_MyListCtrl.SetItemText(nSelIndex, 0, strNextText);
	DWORD_PTR dwNextItemData = m_MyListCtrl.GetItemData(nNextIndex);
	m_MyListCtrl.SetItemData(nNextIndex, m_MyListCtrl.GetItemData(nSelIndex));
	m_MyListCtrl.SetItemData(nSelIndex, dwNextItemData);

	//设置行为高亮
	m_MyListCtrl.SetSelectionMark(nNextIndex);
	m_MyListCtrl.SetItemState(nNextIndex, 
		LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
	m_MyListCtrl.SetFocus();

}

//up
void CMFCApplication3Dlg::OnBnClickedMoveUp()
{
	// TODO:  在此添加控件通知处理程序代码
	int nSelIndex = m_MyListCtrl.GetSelectionMark();
	if (nSelIndex <= 0)
	{
		return;
	}

	//将文本值与扩展数据交换
	int nPrevIndex = nSelIndex - 1;
	CString strPrevText = m_MyListCtrl.GetItemText(nPrevIndex, 0);
	m_MyListCtrl.SetItemText(nPrevIndex, 0, m_MyListCtrl.GetItemText(nSelIndex, 0));
	m_MyListCtrl.SetItemText(nSelIndex, 0, strPrevText);
	DWORD_PTR dwPrevItemData = m_MyListCtrl.GetItemData(nPrevIndex);
	m_MyListCtrl.SetItemData(nPrevIndex, m_MyListCtrl.GetItemData(nSelIndex));
	m_MyListCtrl.SetItemData(nSelIndex, dwPrevItemData);

	//设置当前行为高亮
	m_MyListCtrl.SetSelectionMark(nPrevIndex);
	m_MyListCtrl.SetItemState(nPrevIndex, 
		LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
	m_MyListCtrl.SetFocus();
}


void CMFCApplication3Dlg::OnItemchangedList1(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
	// TODO:  在此添加控件通知处理程序代码

	TRACE3("nItem:%d, nNewState:%u, nOldState:%u\n",
		pNMLV->iItem, pNMLV->uNewState, pNMLV->uOldState);
	if (pNMLV->uNewState & LVIS_SELECTED)
	{
		if (pNMLV->iItem == 0)
		{
			m_btnMoveDown.EnableWindow(TRUE);
			m_btnMoveUp.EnableWindow(FALSE);
		}
		else if (pNMLV->iItem == m_MyListCtrl.GetItemCount() - 1)
		{
			m_btnMoveDown.EnableWindow(FALSE);
			m_btnMoveUp.EnableWindow(TRUE);
		}
	}


	*pResult = 0;
}