Siu,
   I have this encapsulated in a routine that may be somewhat opaque but
here it is.  Note that all my drawing routines take measurements in inches
and assume that the default (1/100th inch) measurement unit is used for the
Graphics.  The following draws the string supplied in a rectangle with the
specified left, right, top, bottom coordinates using the specified brush and
font.
   I can't really send the code that calls this out-of-house.

Ron Allen

 public int PrintInRect(Graphics g, Brush b, Font f, float x, float y,
float xr, float yb, String s, StringFormat sFmt)
 {
   // arguments are supplied in inches and the default measurement is used
  // places the left edge of the string at the supplied x location
  // assume user has done a translatetransform on the graphics for the hard
margins
   // x is the right hand edge of the rectangle to print in, xr is the
lefthand edge
   // y is the top edge and yb is the bottom edge
  float x1 = (100.0f * x); // convert to 100ths of inches
  float y1 = (100.0f * y);
  float x1r = (100.0f * xr);
  float y1b = (100.0f * yb);
   // make sure that these are all positive or zero
  x1 = Math.Max(x1, 0.0f);
  y1 = Math.Max(y1, 0.0f);
  x1r = Math.Max(x1r, 0.0f);
  y1b = Math.Max(y1b, 0.0f);
  int nLines, nChars;
   // create the RectangleF to draw in
  RectangleF rect = new RectangleF(x1, y1, (x1r - x1), (y1b - y1));
   // and the SizeF for measuring
  SizeF sz = new SizeF((x1r - x1), (y1b - y1));
   // measure lines and characters used.  Note nChars is presently
disregarded.
  g.MeasureString(s, f, sz, sFmt, out nChars, out nLines);
   // draw in the desired rectangle with wrapping
  g.DrawString(s, f, b, rect, sFmt);
  return nLines;    // get back the # of lines that this used
 }