关于DoDataExchange无法进行控件数据更新的问题

 1 CInputAngle::CInputAngle(CWnd* pParent /*=NULL*/)
 2 : CDialog(CInputAngle::IDD, pParent)
 3 , m_Edegree(3)
 4 , m_Eminute(4)
 5 , m_Esecond(4)
 6 , m_Adegree(35)
 7 , m_Aminute(3)
 8 , m_Asecond(5)
 9 {
10     m_pshdwdtct = new CShadDtect;
11 }
12 
13 void CInputAngle::DoDataExchange(CDataExchange* pDX)
14 {
15     CDialog::DoDataExchange(pDX);
16     DDX_Text(pDX, IDC_EDIT_Edegree, m_Edegree);
17     DDV_MinMaxInt(pDX, m_Edegree, 0, 360);
18     DDX_Text(pDX, IDC_EDIT_Eminute, m_Eminute);
19     DDV_MinMaxInt(pDX, m_Eminute, 0, 60);
20     DDX_Text(pDX, IDC_EDIT_Esecond, m_Esecond);
21     DDV_MinMaxInt(pDX, m_Esecond, 0, 60);    
22     DDX_Text(pDX, IDC_EDIT_Adegree, m_Adegree);
23     DDV_MinMaxInt(pDX, m_Adegree, 0, 360);
24     DDX_Text(pDX, IDC_EDIT_Aminute, m_Aminute);
25     DDV_MinMaxInt(pDX, m_Aminute, 0, 60);
26     DDX_Text(pDX, IDC_EDIT_Asecond, m_Asecond);
27     DDV_MinMaxInt(pDX, m_Asecond, 0, 60);
28 }

仅仅给各个控件赋初始值无法将用户自定义的新值传递过来。需要在用户赋值后调用的函数前添加

1 UpdateData(TRUE);

即将控件的值传递给参数。