動態創建Radio Button

項目中遇到要動態創建單選按鈕的情況，把代碼整理如下：

對話框的成員變量：

private: std::list<CButton*> m_radioList; //用來保存動態創建的按鈕的指針，便於釋放

對話框的成員函數：

private: void ClearRadioList(); //釋放動態創建的按鈕

在對話框的OnInitDialog函數裏添加創建按鈕的代碼：

CRect rcBtn(20,0,120,15); //按鈕高度爲15，間隔高度爲10 for (int i = 0; i < 5; i++) { DWORD dwStyle = WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON; rcBtn.top += 25; rcBtn.bottom += 25; CButton *pButton = new CButton(); if (0 == i) { dwStyle |= WS_GROUP; //第一個按鈕時添加分組風格 } pButton->Create("單選按鈕", dwStyle, rcBtn, this, 1000 + i); pButton->SetFont(GetFont()); //設置爲父窗口的字體 m_radioList.push_back(pButton); }

添加按鈕的響應：

BOOL CCreateRadioDlg::OnCommand(WPARAM wParam, LPARAM lParam) { // TODO: Add your specialized code here and/or call the base class UINT nID,nMode; nID=LOWORD(wParam); nMode=HIWORD(wParam); if(nMode==BN_CLICKED) { if (nID < (1000 + m_radioList.size()) && nID >= 1000) { CString strTemp; strTemp.Format("%d",nID - 1000); MessageBox(strTemp); } } return CDialog::OnCommand(wParam, lParam); } void CCreateRadioDlg::ClearRadioList() { std::list<CButton*>::const_iterator it; for (it = m_radioList.begin(); it != m_radioList.end(); it++) { delete *it; } m_radioList.clear(); } void CCreateRadioDlg::OnDestroy() { CDialog::OnDestroy(); // TODO: Add your message handler code here ClearRadioList(); }