Two ways to get HtmlTextWriter for HTML rendering

I need to render some html in my asp.net applications sometime, I chose HtmlTextWriter to build the html source because I can use those handy methods of this object such as RenderBeginTag, AddAttribute, and so on. I know two ways to do this.

 1  StringBuilder sb  =   new  StringBuilder();
 2               using (StringWriter sw  =   new  StringWriter(sb))
 3              {
 4                   using (HtmlTextWriter output  =   new  HtmlTextWriter(sw))
 5                  {
 6                      output.RenderBeginTag(HtmlTextWriterTag.Table);
 7                       for ( int  y = 0 ; y < 1000 ; y ++ )
 8                      {
 9                          output.RenderBeginTag(HtmlTextWriterTag.Tr);
10                           for ( int  x = 0 ; x < 100 ; x ++ )
11                          {
12                              output.RenderBeginTag(HtmlTextWriterTag.Td);
13                              output.Write( " &nbsp; " );
14                              output.RenderEndTag();
15                          }
16                          output.RenderEndTag();
17                          output.Flush();
18                      }
19                      output.RenderEndTag();
20                      Response.Write(output.ToString());
21                  }
22              }

 1  using (MemoryStream stream  =   new  MemoryStream())
 2              {
 3                   using (TextWriter tw  =   new  StreamWriter(stream,System.Text.Encoding.UTF8)  as  TextWriter)
 4                  {
 5                       using (HtmlTextWriter output  =   new  HtmlTextWriter(tw))
 6                      {
 7                          output.RenderBeginTag(HtmlTextWriterTag.Table);
 8                           for ( int  y = 0 ; y < 1000 ; y ++ )
 9                          {
10                              output.RenderBeginTag(HtmlTextWriterTag.Tr);
11                               for ( int  x = 0 ; x < 100 ; x ++ )
12                              {
13                                  output.RenderBeginTag(HtmlTextWriterTag.Td);
14                                  output.Write( " &nbsp; " );
15                                  output.RenderEndTag();
16                              }
17                              output.RenderEndTag();
18                          }
19                          output.RenderEndTag();
20                          output.Flush();
21                          Response.Write(output.ToString());
22                      }
23                  }
24              }