C / C++ / MFC

CDlg1::OnOK()
{
CMyDlg dlg2;
dlg2.m_var1 = m_var1;
dlg2.DoModal();
}

#include "GridCtrl_src\GridCtrl.h"<br />
class cContentSourcesGrid : public CDialog<br />
{<br />
// Construction<br />
public:<br />
	CString m_ID; // here is where I tried adding the variable for the first try<br />
	cContentSourcesGrid(CWnd* pParent = NULL);   // standard constructor<br />
// Dialog Data<br />
	//{{AFX_DATA(cContentSourcesGrid)<br />
	enum { IDD = IDD_CONTENTSOURCESGRID };<br />
	CEdit	m_RecordID;<br />
	CGridCtrl m_Grid;<br />
	CString m_ID; // here is where I tried adding the variable for the second try<br />
	//}}AFX_DATA<br />
<br />
<br />
// Overrides<br />
	// ClassWizard generated virtual function overrides<br />
	//{{AFX_VIRTUAL(cContentSourcesGrid)<br />
	protected:<br />
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support<br />
	virtual BOOL OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult);<br />
	//}}AFX_VIRTUAL<br />
<br />
// Implementation<br />
protected:<br />
	CString m_ID; // here is where I tried adding the variable for the third try<br />
<br />
	// Generated message map functions<br />
	//{{AFX_MSG(cContentSourcesGrid)<br />
	virtual BOOL OnInitDialog();<br />
	virtual void OnOK();<br />
	//}}AFX_MSG<br />
	DECLARE_MESSAGE_MAP()<br />
};

cContentSourcesDialog   dlg;<br />
dlg.m_ID = csKey;<br />
dlg.DoModal();

cContentSourcesDialog dlg;
dlg.m_ID = csKey;
dlg.DoModal();

class cContentSourcesDialog : public CDialog
{
public:
CString m_ID;
/// **** The rest of your code goes here


}