private void SetIsHidden(bool value)
{
if (m_isHidden == value)
return;
m_isHidden = value;
if (DockHelper.IsDockStateAutoHide(DockState))
{
DockPanel.RefreshAutoHideStrip();
DockPanel.PerformLayout();
}
else if (NestedPanesContainer != null)
((Control)NestedPanesContainer).PerformLayout();
}