You also need to change m_nRows  value.

 

m_nRows  = 1;

 

I couldn't find multiple show/hide example in Splitter Window.

 

So I want to konw how to Hide multiple rows and show rows.

 

when I override HideRow method It error occured in RecalcLayout().

 

void HideRow()

{

ASSERT_VALID(this);
 int i;
 if (m_bHide)
 {
  return;
 }
 // hide all Rows
 int nRow;
 for (nRow = 1; nRow < m_nRows; ++nRow )
 {
  CWnd* pPaneHide = GetPane(nRow, 0);
  ASSERT(pPaneHide != NULL);

  pPaneHide->ShowWindow(SW_HIDE);
  pPaneHide->SetDlgCtrlID(AFX_IDW_PANE_FIRST + m_nRows * 16 + nRow);
 }

  m_pRowInfo[0].nIdealSize += m_pRowInfo[1].nCurSize;

  RecalcLayout();

}