断言错误 dlgdata.cpp line:43

原因是对话框中某个ID对应的控件不存在
估计你删除了界面上的控件，但是没有删除其映射关系

以下是出现断言错误的地方，Line43我已标出

HWND CDataExchange::PrepareCtrl(int nIDC)
{
ASSERT(nIDC != 0);
ASSERT(nIDC != -1); // not allowed
HWND hWndCtrl;
m_pDlgWnd->GetDlgItem(nIDC, &hWndCtrl);
if (hWndCtrl == NULL)
{
TRACE1("Error: no data exchange control with ID 0x%04X.\n", nIDC);
*******Line43**** ASSERT(FALSE);
AfxThrowNotSupportedException();
}
m_hWndLastControl = hWndCtrl;
m_bEditLastControl = FALSE; // not an edit item by default
ASSERT(hWndCtrl != NULL); // never return NULL handle
return hWndCtrl;
}