public class derLabel : System.Windows.Forms.Label
{
  // Declare these variables to specify the left and the right colors of the rectangle
  private Color cLeft;
  private Color cRight;

  // Get/Set the left color
  public Color LeftColor
  {
    get { return cLeft;   }
    set { cLeft = value; }
  }

  // Get/Set the right color
  public Color RightColor
  {
    get { return cRight;   }
    set { cRight = value; }
  }

  public derLabel()
  {
    // Default left/right rectangle colors
    cLeft = Color.Red;
    cRight = Color.Yellow;
  }

  protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
  {
    // Declare a rectangle with the user specified width and height. As of now, the Upper 
    // left and top positions have been hardcoded. This can be replaced by creating 
    // another property for the width and height and specifying the value in the form load
    Rectangle oRect = new Rectangle(100,100,this.Width,this.Height);

    // Fill the background of label (Rectangle)
    LinearGradientBrush oLinearbrush = new LinearGradientBrush(oRect, cLeft, 
                  cRight, Lineargradientmode.horizontal);

    //  Very important   
    // You can also use the oLinearBrush.RotateTransform function to change the left 
    // color and right color (swap them). The input parameter to the above function module 
    // is an angle which is a float variable. Specify 180 to swap the left and right 
    // colors. Also, if you loop through the angles, and insert a sleep time, you can 
    // gradually swap the colors.

    // Fill the rectangle with gradient using GDI+
    e.Graphics.FillRectangle(oLinearbrush, oRect);
  }
} 

this.derLbl = new derLabel();

this.derLbl.LeftColor = Color.Blue;
this.derLbl.LeftColor = Color.Yellow;
this.derLbl.Name = "derLbl";
this.derLbl.Text = "Subbu";
this.derLbl.width = unit.pixel(200);
this.derLbl.height = unit.pixel(100);

this.Controls.Add(derLbl);