write_html_from_class_rendercontents.cs

  // Start of code
  
    protected override void RenderContents(HtmlTextWriter writer)
    {
        // Writing a simple h1
        
        // You have to prepare your tag attributes before opening the tag
        writer.AddAttribute(HtmlTextWriterAttribute.Id, "my_h1");
        
        // Open h1 tag
        writer.RenderBeginTag(HtmlTextWriterTag.H1);
        
        // Write contents of h1
        writer.Write("My heading");
        
        // Close h1 tag
        writer.RenderEndTag();
          
        writer.Close();
    }
    
  // End of code