visual csharp

Question

]if i select particular topic in the list of dropdown n give submit button i need tat word doc will open with that particular topic...whether its possible in visual csharp...tell the procedure and code 4 tat...




for eg:in first dropdownlist i click:doc1
             sec dropdownlist list the subtopics of doc1:list of subtopics of doc1


after i click the submit button


doc1 will display with the selected subtopic
 




for that i need a code..