Multiple Catch in C#

Question

Hi....

I know try and catch used for exception handling in C# but I want to know,there are possible multiple try block for single catch block or multiple catch block for single try block ? Please explain with an example in details ?

Thanks....

Satyapriya Nayak · Answer

Hi Vineet, Yes. Multiple catch blocks may be put in a single try block. Example:- using System; public class ExcDemo4 { public static void Main () { // Here, numer is longer than denom. int [] numer = { 4 , 8 , 16 , 32 , 64 , 128 , 256 , 512 } ; int [] denom = { 2 , 0 , 4 , 4 , 0 , 8 } ; for ( int i= 0 ; i ) { try { Console.WriteLine ( numer [ i ] + " / " + denom [ i ] + " is " + numer [ i ] /denom [ i ]) ; } catch ( DivideByZeroException ) { // catch the exception Console.WriteLine ( "Can't divide by Zero!" ) ; } catch ( IndexOutOfRangeException ) { // catch the exception Console.WriteLine ( "No matching element found." ) ; } } } } But for every try block there must be a corresponding catch block. Example:- using System; public class NestTrys { public static void Main() { // Here, numer is longer than denom. int[] numer = { 4, 8, 16, 32, 64, 128, 256, 512 }; int[] denom = { 2, 0, 4, 4, 0, 8 }; try { // outer try for(int i=0; i try { // nested try Console.WriteLine(numer[i] + " / " + denom[i] + " is " + numer[i]/denom[i]); } catch (DivideByZeroException) { // catch the exception Console.WriteLine("Can't divide by Zero!"); } } } catch (IndexOutOfRangeException) { // catch the exception Console.WriteLine("No matching element found."); Console.WriteLine("Fatal error -- program terminated."); } } } Thanks

Vineet Kumar Saini · Answer

Thanks all my dear....

Aarti · Answer

Hi Vineet, Multiple try block for single Catch block is not possible in C Sharp. But You can define multiple catch block for single Try block. Example: // Ordering catch clauses using System; class MyClass { public static void Main() { MyClass x = new MyClass(); try { string s = null; x.MyFn(s); } // Most specific: catch (ArgumentNullException e) { Console.WriteLine("{0} First exception caught.", e); } // Least specific: catch (Exception e) { Console.WriteLine("{0} Second exception caught.", e); } } public void MyFn(string s) { if (s == null) throw new ArgumentNullException(); } }

Jignesh Trivedi · Answer

Hi, There is multiple catch block for single try block. try { .... } catch (SqlException es) { // catch only SQL Exception } catch (OutOfMemoryException eo) { // catch only Out Of Memory Exception } hope this help.

Multiple Catch in C#

Answers (4)