/// <summary>
/// Expands the GroupBox</summary>
public void Expand()
{
if (!IsCollapsed)
{
return;
}
Expanding.Raise(this, EventArgs.Empty);
foreach (Control child in Controls)
{
if (ReferenceEquals(child, m_btn))
{
continue;
}
child.Show();
}
MinimumSize = new Size(m_prevMinSize.Width, m_prevMinSize.Height);
base.Height = LastHeight;
LastHeight = CollapseHeight;
IsCollapsed = false;
Invalidate();
m_btn.Invalidate();
Expanded.Raise(this, EventArgs.Empty);
}