How ca I handle multi throw messages in one catch block

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C#

try
{
   if (Validate())
     {
        if (MakePerson())
           RadMessageBox.Show("ok");
        else
          throw new Exception(ex1);
     }
   else
        throw new Exception(ex2); 
 }
catch 
{
   if(ex1) 
      RadMessageBox.Show("custommessage1")
   if(ex2)
      RadMessageBox.Show("custommessage2")
}

Posted 16-Feb-14 15:27pm

mit62

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Krunal Rohit · Answer 1 · 2014-02-16T15:40:00

Solution 1

C#

try
{
 // statements that can cause exception.
}
catch (MoreSpecificExceptionType e1)
{
 // error handling code
}
catch (SpecificExceptionType e2)
{
 // error handling code
}
catch (GeneralExceptionType eN)
{
 // error handling code
}

[ for more reference, go here[^] ]

And this will help you out as well,
stackoverflow[^]
MSDN[^]
c#-corner[^]
hblog.gurock.com/[^]

-KR

Posted 16-Feb-14 15:40pm

Krunal Rohit

Updated 16-Feb-14 16:32pm

v2

Comments

mit62 16-Feb-14 21:50pm

would you please tell me how write throws?

Krunal Rohit 16-Feb-14 21:51pm

catch(ZeroDivideException ex)
{
throw new Exception(ex.Message);
}

Is it ?
-KR

mit62 16-Feb-14 21:53pm

and how I call Catch when code in Try is wrong?

Krunal Rohit 16-Feb-14 21:55pm

Whenever the Try block is not executed (some exception must be there), then Catch block automatically executed. So control automatically goes to the Catch block, and there you are.

-KR

Krunal Rohit 16-Feb-14 21:56pm

Refer the link from the Solution.

-KR

Krunal Rohit 16-Feb-14 21:53pm

But in my opinion, Exception is a base class for all other exception classes, so instead of catching different exceptions, catch only Exception and show the message.

just the tip :)
-KR

mit62 16-Feb-14 22:01pm

ok thanks but this part is not clear for me.
try
{
// statements that can cause exception.
}

Krunal Rohit 16-Feb-14 22:03pm

try
{
int ans = 5/0; // it will cause Exception, DivideByZeroException
}

-KR

mit62 16-Feb-14 22:06pm

but exceptions in my if clauses are not original exception like DivideByZeroException.
my exceptions are kinda custom exceptions. for example happen when a function has error

Krunal Rohit 16-Feb-14 22:26pm

You're not getting !
-KR

Krunal Rohit 16-Feb-14 22:32pm

see updated answer :)
-KR

BillWoodruff 16-Feb-14 23:09pm

+5 Very useful answer !

Krunal Rohit 16-Feb-14 23:12pm

Thanks Bill :)
-KR