/// <summary>
/// Clears the gradient brush.
/// </summary>
private void ClearGradientBrush()
{
if (gradientBrush != null)
{
gradientBrush.Dispose();
gradientBrush = null;
}
}
/// <summary>
/// Redraws this instance.
/// </summary>
private void Redraw()
{
if (br != null)
{
br.Dispose();
br = null;
}
Invalidate(true);
}