as the title

You'd have to override the OnPaint method of the inherited control class and paint the border yourself.  Something like this might do it:

protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    Pen p = new Pen(Color.Blue);
    p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;

    Rectangle rect = new Rectangle(e.ClipRectangle.X, e.ClipRectangle.Y, e.ClipRectangle.Width - 1,
                                   e.ClipRectangle.Height - 1);

    e.Graphics.DrawRectangle(p, rect);
}

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Coding Light - Illuminated Ideas and Algorithms in Software
Coding Light Wiki �LinkedIn �ForumsBrowser

wow!

Create two properties: one for BorderColor, and another one for BorderStyle.  Have the method use the values from these properties instead of hard-coding the settings.  Change the property to change the way the label appears. 

public class DashedLabel : Label
{
    public DashedLabel()
    {
        DashStyle = DashStyle.Dash;
        BorderColor = Color.Black;
    }

    public DashStyle DashStyle { get; set; }
    public Color BorderColor { get; set;  }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);

        Pen p = new Pen(BorderColor);
        p.DashStyle = DashStyle;

        Rectangle rect = new Rectangle(e.ClipRectangle.X, e.ClipRectangle.Y, e.ClipRectangle.Width - 1,
                                       e.ClipRectangle.Height - 1);

        e.Graphics.DrawRectangle(p, rect);
    }

}

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Coding Light - Illuminated Ideas and Algorithms in Software
Coding Light Wiki �LinkedIn �ForumsBrowser

i got you

Have another property that is a boolean value to enable or disable custom borders.  If it's false, don't draw the borders - the default border specified by the BorderStyle property should show up.  If it's true, draw the custom borders.  

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Coding Light - Illuminated Ideas and Algorithms in Software
Coding Light Wiki �LinkedIn �ForumsBrowser

thank you very much!!!