程序代码：

private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{            
   e.DrawBackground();
   e.DrawFocusRectangle();            
  e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, new SolidBrush(Color.Red), e.Bounds);
}

 
private void listBox1_MeasureItem(object sender, MeasureItemEventArgs e)
{
   //要设置的宽度列
   if (e.Index == 2)
   {            
     e.ItemHeight = 50;   
   }       

 }