C#

protected override void OnPaint(PaintEventArgs e)
{
	try
	{
		//paint the background
		LinearGradientBrush brush;
		brush = new LinearGradientBrush(
			ClientRectangle.Location,
			new Point(ClientRectangle.Left,ClientRectangle.Bottom),
			this.BackColor, 
			ControlPaint.Light(this.BackColor));
		e.Graphics.FillRectangle(brush, ClientRectangle);
		brush.Dispose();

		//add labels here
		foreach(PanelLabel PL in LabelArray)
		{
			PanelLabel lb=null;
			bool LabelFound=false;
			foreach(Control ctrl in this.Controls)
			{	
				if(ctrl is PanelLabel)
				{
					lb = (PanelLabel)ctrl;
					if(lb!=null)
					{
						ContentAlignment CA = (ContentAlignment)lb.SimpleLocation;
						if(lb.Text==PL.Text && CA==PL.SimpleLocation)
						{
							LabelFound=true;
							break;
						}
					}
				}
				else
					continue;
			}
			if(!LabelFound)
			{
				lb = new PanelLabel();
				lb.Font=new Font(lb.Font,PL.TextStyle);
				lb.Text=PL.Text;
				lb.SimpleLocation=PL.SimpleLocation;
				lb.BackColor=Color.Transparent;//comment out this line allows painting
			}
			lb.Bounds=SetLabelLocation(lb,PL.SimpleLocation,e.Graphics);
			if(lb.Bounds!=Rectangle.Empty && lb.Bounds!=ClientRectangle)
				this.Controls.Add(lb);
			else 
				throw new Exception("Label bounds are empty");
		}
		base.OnPaint (e);
	}
	catch(Exception Err)
	{
		MessageBox.Show("On Paint Error:"+Err.Message);
	}
}