Ah, so you want to move data from one edit to another. Then, it should be like this:
Code:
void CU6b82Dlg::OnDemo()
{
// take data from controls into variables
UpdateData (TRUE);
CString sequence;
// this is just an example
switch(rand() % 5)
{
case 1: sequence="AAA"; break;
case 2: sequence="BBB"; break;
case 3: sequence="CCC"; break;
case 4: sequence="DDD"; break;
}
// swap data
m_Sequence5 = m_Sequence4;
m_Sequence4 = m_Sequence3;
m_Sequence3 = m_Sequence2;
m_Sequence2 = m_Sequence1;
m_Sequence5 = sequence;
// put data in controls from variables
UpdateData (FALSE);
}