I have created a vb class to render HTML based on properties of the dhtmlGantt object. The generated HTML can be parsed to a web control or saved to a file to display the dhtmlxGantt chart. This is based on how far I have learned and understood the object itself. This is indeed a very impressive product and I love it!
Please note this does not replace the pipelined plans to have an asp.net version of the object from here. If you want a c# version you can use SharpDevelop and convert the vb class to c#. The class is hosted here… aspnetdhtlxganttclass.codeplex.com/