vs2003C#datagrid单行行高设定

public void AutoSizeGrid(DataGrid dg)
  {
   int numRows = ((DataTable)dg.DataSource).Rows.Count;
   Graphics g = Graphics.FromHwnd(dg.Handle);
   StringFormat sf = new StringFormat(StringFormat.GenericTypographic);
   SizeF size;
   MethodInfo mi = dg.GetType().GetMethod("get_DataGridRows",
    BindingFlags.FlattenHierarchy | BindingFlags.IgnoreCase | BindingFlags.Instance
    | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
  
   System.Array dgra = (System.Array)mi.Invoke(dg,null);
   ArrayList DataGridRows = new ArrayList();
   foreach (object dgrr in dgra)
   {
    if (dgrr.ToString().EndsWith("DataGridRelationshipRow")==true)
     DataGridRows.Add(dgrr);
   } 
   for (int i = 0; i < ??; ++i)
   { 
    size = g.MeasureString(dg[i,1].ToString(),dg.Font,400,sf);
    int h = Convert.ToInt32(size.Height); 
    h = h + 8;
    PropertyInfo pi = DataGridRows[i].GetType().GetProperty("Height");
    pi.SetValue(DataGridRows[i],0,null);
   } 
   g.Dispose();
 
  }