Please try below mentioned simple way.
<input type="text" name="EMP_NAME" value="<%: ViewData["ee"].ToString()%>">
UPDATE
With your query if it's returning only one result, why you use ToLits() with it.Please try is as below for the Text box.
var em =from p in GetPageBaseObject where p.EMP_ID==id select p;
ViewData["ee"] = em.FirstOrDefault().EMP_NAME;