c# - creating a custom object .net -

i know can call user control parameters this:

<mylib:myobject runat="server" param1="<%= getparam1() %>" param2="<%= getparam2() %>"></mylib:myobject> 

i need pass more complex information object, this:

<mylib:myobject runat="server">   <param1 param1feature1="feature1.1" param1feature2="feature1.2" />    <param2 param1feature1="feature2.1">     <feature2 value="feature2.2"/>   </deletecommand>    <param3>         <h2>some html content</h2>         <p>some html content</p>   </param3> </mylib:myobject> 

a famous commercial component uses method pass more simple id component. hoping use same functionality in project dont know object or method use achieve this.

thanks time/help.