void DrawHeaderBorder(DrawHeaderEventArgs e)
{
Graphics g = e.Graphics;
Rectangle r = new Rectangle(e.Bounds.Left, e.Bounds.Top, e.Bounds.Width, e.Bounds.Height);
if (r.Left == 0)
{
g.DrawLine(/*SystemPens.ControlLightLight*/ borderPen, r.Left, r.Bottom, r.Left, r.Top);
}
if (r.Top == 0)
{
g.DrawLine(/*SystemPens.ControlLightLight*/ borderPen, r.Left, r.Top, r.Right, r.Top);
}
if (r.Bottom == e.HeaderHeight)
{
g.DrawLine(/*SystemPens.ControlDark*/ borderPen, r.Left, r.Bottom - 1, r.Right, r.Bottom - 1);
}
}
void DrawHeaderBorder(DrawHeaderEventArgs e)
{
Graphics g = e.Graphics;
Rectangle r = new Rectangle(e.Bounds.Left,e.Bounds.Top,e.Bounds.Width,e.Bounds.Height);
if(r.Left == 0)
g.DrawLine(/*SystemPens.ControlLightLight*/borderPen,r.Left,r.Bottom,r.Left,r.Top);
if(r.Top == 0)
g.DrawLine(/*SystemPens.ControlLightLight*/borderPen,r.Left,r.Top,r.Right,r.Top);
if(r.Bottom == e.HeaderHeight)
g.DrawLine(/*SystemPens.ControlDark*/borderPen,r.Left,r.Bottom-1,r.Right,r.Bottom-1);
}