asp.net - C# Drawing Chess Board -

i'm trying draw 8x8 chess board using c#. here's first attempt draw it. won't draw board , haven't found i'm missing.

     public void form1_load(object sender, eventargs e)      {          bitmap bm = new bitmap(8 * 100, 8 * 100);          graphics g = graphics.fromimage(bm);          color color1, color2;          (int = 0; < 8; i++)          {              if (i % 2 == 0)              {                  color1 = color.black;                  color2 = color.white;              }              else              {                  color1 = color.white;                  color2 = color.black;              }              solidbrush blackbrush = new solidbrush(color1);              solidbrush whitebrush = new solidbrush(color2);               (int j = 0; j < 8; j++)              {                  if (j % 2 == 0)                      g.fillrectangle(blackbrush, * 100, j * 100, 100, 100);                  else                      g.fillrectangle(whitebrush, * 100, j * 100, 100, 100);              }          }           g.drawimage(bm, 150, 200);      }   

add backgroundimage = bm; bottom of code.

you drawing board fine, not displaying bitmap...

edit: im not sure if you're interested, rewrote code.

bitmap bm = new bitmap(800, 800); using (graphics g = graphics.fromimage(bm)) using (solidbrush blackbrush = new solidbrush(color.black)) using (solidbrush whitebrush = new solidbrush(color.white)) {     (int = 0; < 8; i++)     {         (int j = 0; j < 8; j++)         {             if ((j % 2 == 0 && % 2 == 0) || (j % 2 != 0 && % 2 != 0))                 g.fillrectangle(blackbrush, * 100, j * 100, 100, 100);             else if ((j % 2 == 0 && % 2 != 0) || (j % 2 != 0 && % 2 == 0))                 g.fillrectangle(whitebrush, * 100, j * 100, 100, 100);         }     }     backgroundimage = bm; } 

also project if want make chess game: http://www.codeproject.com/articles/20736/c-c-cli-micro-chess-huo-chess