When you use the old asp and were presenting a detail view you might choose to not show a table row by setting the style display attribute to none which takes it out of the html.
You might do this where a form was being filled in. For example you ask whether a person is under 17 or over 17. If under 17 you might choose to not display the table row that asks for their driver’s license number. In asp you would use Javascript and do a getElementbyID for the row in question and set the style attribute display to none.
I am trying to find the srver side asp.net2 equivalent to set a specific table row style display to none using server side VB after doing a postback. i.e. not using Javascript.

Server side script to hide specific row after postback?
Pi314159
Use a datalist or repeater. When you bind a data into one you can handle the ItemDataBound (something like it) event and show/hide some rows.
BTW, your post is related to ASP.NET so please ask this kind of questions on http://forums.asp.net