How to Throw Multilingual Exceptions

Question

I have a multilingual web application, where I use a resource file in the frontend to display the different text.

I followed this approach http://www.codeproject.com/Tips/586948/ASP-NET-Website-and-Csharp-with-Multi-Language

Is there a way where the exception handling done in the backend throws exceptions according to the current language selected?

Answer 1

You need CustomException which inherit Exception for this.(Be aware never catch all the exceptions only the exception needed for your case, I just wrote you an example. If you catch all the exception you can lose specific information when something go wrong on productive server. Like I said in the past I used it for DBConcurrencyException)

Business Object logic

try
{
    //some code
}
catch(Exception ex)
{
   CustomException newEx = new CustomException();
   newEx.Message = "Translate Multilanguage String depending of the user culture"
   throw newEx;
}

UI-part aspx.Page

try
{
    //some code which calls the BO logic with try/catch
}
catch(CustomException ex)
{
    Label1.Text = ex.Message;
}

How to use this for validation purpose:

if(myValue < 5)
   throw new CustomException("Value should not be under 5");