special case of use in web improvement?

Question

Hi, 

 

I end up utilizing exemption in web improvement notwithstanding for conditions that are not by any stretch of the imagination mistakes, not to mention uncommon ones - just rationale choices, approvals...

 

in a website page, I frequently compose code like so:

 

try

{

int id;

if(!int.TryParse(txtID.Text, out id))

throw new Exception("ID must be an integer");

if(IdAlreadyExists(id))

throw new Exception("ID already exists in database");

//and so on...

}

catch(Exception ex)
{
SetErrorLine(ex.Message);
}

I was thinking about whether this is extremely the right method for utilizing special cases and authorizing Business Logic in web advancement.

 

P.S.: I am utilizing asp.net, and clearly I could utilize ASP.NET validators for some of these and furthermore isolate UI from rationale, yet I'm endeavoring to make a point of the general thought.

 

 Thanks and Regards

sireesha.