private bool ReadQueryString()
 {
     try
     { Subject = Request.QueryString["subject"]; }
     catch (Exception)
     { return(false); }
     try
     { Child = Request.QueryString["child"]; }
     catch (Exception)
     { return(false); }
     try
     { _subjectType = (LinkTree.SubjectType) int.Parse(Request.QueryString["type"]); }
     catch (Exception)
     { return(false); }
     return(true);
 }
 private bool ReadQueryString()
 {
     try
     { _depth = int.Parse(Request.QueryString["depth"]); }
     catch (Exception)
     { return(false); }
     try
     { _maxNodes = int.Parse(Request.QueryString["maxNodes"]); }
     catch (Exception)
     { return(false); }
     try
     { Subject = Request.QueryString["subject"]; }
     catch (Exception)
     { return(false); }
     try
     { _subjectType = (LinkTree.SubjectType) int.Parse(Request.QueryString["type"]); }
     catch (Exception)
     { return(false); }
     return(true);
 }