listboxのitem色をどう変えるか(C#)

C#

（1）       ：

           ListBox   。   DrawMode       DrawMode.OwnerDrawFixed 
  DrawMode.OwnerDrawVariable  ，      。            ListBox 
         。          （  DrawMode       DrawMode.OwnerDrawVariable
  ），     ，   MeasureItem   。    MeasureItem           ，
   DrawItem                     。
           ，    イベントの  。
（2）  listbox drawitem  

private void listBox1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
   // Set the DrawMode property to draw fixed sized items.
   listBox1.DrawMode = DrawMode.OwnerDrawFixed;
   // Draw the background of the ListBox control for each item.
   e.DrawBackground();
   // Define the default color of the brush as black.
   Brush myBrush = Brushes.Black;

   // Determine the color of the brush to draw each item based on the index of the item to draw.
   switch (e.Index)
   {
      case 0:
         myBrush = Brushes.Red;
         break;
      case 1:
         myBrush = Brushes.Orange;
         break;
      case 2:
         myBrush = Brushes.Purple;
         break;
   }

   // Draw the current item text based on the current Font and the custom brush settings.
   e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush,e.Bounds,StringFormat.GenericDefault);
   // If the ListBox has focus, draw a focus rectangle around the selected item.
   e.DrawFocusRectangle();
}

(3)この例から,vc++6.0で自己描画を定義するよりもc#の下でコントロールを再描画する方が便利であることが分かった.