CAmbiar color lineas listbox

[maycol_alvarez]

Yo lo hice heredando la clase listbox, sobrescribiendo los métodos de dibujo del ítem: onmeasureitem, ondrawitem, todo muy complejo porque mi objetivo fue colocar imágenes y efectos, pero debe de haber otra solución más simple, esta es parte del código, son 1000 lineas más:

Código:

protected override void OnDrawItem(System.Windows.Forms.DrawItemEventArgs e)
		{
			base.OnDrawItem(e);
			//((pr1.Form1)this.FindForm()).listBox1.Items.Insert(0,e.State.ToString() + " " + e.Index);
			System.Drawing.Rectangle r;
			System.Drawing.Brush bro=null;
			System.Drawing.Brush brot=null;
			ComboBoxItem it = null;
//			System.Diagnostics.Debug.WriteLine(e.State );
			if (Contains(e.State,System.Windows.Forms.DrawItemState.Selected)) 
			{
				bro = new System.Drawing.SolidBrush(_lc);
				brot = new System.Drawing.SolidBrush(_ltc);
			}
			else
			{
				bro = new System.Drawing.SolidBrush(base.BackColor);
				brot = new System.Drawing.SolidBrush(e.ForeColor);
			}
			if (e.Index != -1)
			{
				if (_pot)
				{
					r = new System.Drawing.Rectangle(e.Bounds.X+19,e.Bounds.Y,e.Bounds.Width,e.Bounds.Height);
				}
				else
				{
					r = e.Bounds;
				}
				if (this.Items[e.Index] is ComboBoxItem)
				{
					it = ((ComboBoxItem)this.Items[e.Index]);
					//if (Contains(e.State,System.Windows.Forms.DrawItemState.ComboBoxEdit))//{//	e.Graphics.FillRectangle(bro,e.Bounds);//}
					it.DrawBack(bro,r,e);
					if (_pot)
					{
						it.DrawImage(e,new System.Drawing.Rectangle(e.Bounds.X+1,e.Bounds.Y+1,16,16),false,base.BackColor,this);
					}
					else
					{
						it.DrawImage(e,new System.Drawing.Rectangle(e.Bounds.X+1,e.Bounds.Y+1,16,16),Contains(e.State,System.Windows.Forms.DrawItemState.Selected),base.BackColor,this);
					}
					if (it.TextDraw) {it.DrawText(it.ToString(),brot,new System.Drawing.Rectangle(e.Bounds.X + 18,e.Bounds.Y + 2,e.Bounds.Width - 18,e.Bounds.Height -1),e);}
				}
				else
				{
					e.Graphics.FillRectangle(bro,e.Bounds);
					e.Graphics.DrawString(this.Items[e.Index].ToString(),e.Font,brot,e.Bounds);
				}
			}
			else
			{
				e.Graphics.FillRectangle(bro,e.Bounds);
			}
			if (bro != null) {bro.Dispose();}
			if (brot != null) {brot.Dispose();}
			it = null;
		}