用c++实现以下功能:combox中添加行为十一的不定列的表格并在表格中从第二行第四列开始添加复选框
时间: 2024-03-26 12:39:06 浏览: 91
C++实现的各种功能
以下是使用C++ MFC实现在combobox中添加行为十一的不定列的表格,并在表格中从第二行第四列开始添加复选框的示例代码:
```cpp
#include "stdafx.h"
#include "MFCApplication1.h"
#include "MFCApplication1Dlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CMFCApplication1Dlg::CMFCApplication1Dlg(CWnd* pParent /*=nullptr*/)
: CDialogEx(IDD_MFCAPPLICATION1_DIALOG, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMFCApplication1Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Control(pDX, IDC_COMBO1, m_combo);
}
BEGIN_MESSAGE_MAP(CMFCApplication1Dlg, CDialogEx)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
END_MESSAGE_MAP()
BOOL CMFCApplication1Dlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
SetIcon(m_hIcon, TRUE);
SetIcon(m_hIcon, FALSE);
// 创建表格
CString table[5][4] = { _T("Name"), _T("Age"), _T("Gender"), _T("CheckBox"),
_T("John"), _T("25"), _T("Male"), _T(""),
_T("Mary"), _T("30"), _T("Female"), _T(""),
_T("Mike"), _T("20"), _T("Male"), _T("") };
// 将表格数据添加到combobox中
for (int i = 0; i < 5; i++) {
CString row;
for (int j = 0; j < 4; j++) {
row += table[i][j] + _T("\t");
}
m_combo.AddString(row);
}
// 创建下拉列表,并将表格作为其内容
m_list.Create(WS_BORDER | WS_VSCROLL | LBS_HASSTRINGS | LBS_NOINTEGRALHEIGHT | LBS_NOTIFY, CRect(0, 0, 0, 0), &m_combo, 0);
for (int i = 0; i < 5; i++) {
CString row;
for (int j = 0; j < 4; j++) {
row += table[i][j] + _T("\t");
}
m_list.AddString(row);
}
// 将下拉列表的宽度设置为表格的宽度,高度设置为需要显示的行数乘以行高
int width = 0;
for (int i = 0; i < 4; i++) {
width += m_list.GetTabbedTextExtent(table[0][i], -1, NULL);
}
m_combo.SetDroppedWidth(width);
m_list.SetItemHeight(0, 16);
m_list.SetItemHeight(1, 16);
m_list.SetItemHeight(2, 16);
m_list.SetItemHeight(3, 16);
m_list.SetItemHeight(4, 16);
// 在表格中从第二行第四列开始添加复选框
CRect rect;
m_list.GetItemRect(1, &rect);
rect.left += 3 * rect.Width() / 4;
rect.right = rect.left + rect.Height();
CButton* checkbox = new CButton;
checkbox->Create(_T(""), BS_CHECKBOX | WS_CHILD | WS_VISIBLE, rect, &m_list, 0);
checkbox->SetCheck(BST_CHECKED);
return TRUE;
}
void CMFCApplication1Dlg::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);
// 居中绘制图标
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();
}
}
HCURSOR CMFCApplication1Dlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
```
这段代码使用MFC框架创建一个对话框窗口,在窗口中创建一个combobox,将表格数据添加到combobox中,并将表格作为下拉列表的内容。然后根据需要添加复选框。注意,这段代码中添加的复选框不是MFC框架的控件,而是普通的Win32控件,需要手动管理其内存。
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