What is the difference between the “throw” and “throw ex” in .

1.	What is the difference between the “throw” and “throw ex” in .NET?
Answer» In THROW, the original EXCEPTION stack information is retained. Example: For Throw : try { // some operation that can FAIL } catch (Exception ex) { throw; } For Throw Ex: In Throw Ex the original information is overridden by the External information and you will LOSE the original information. try { // do some operation that can fail } catch (Exception ex) { // do some local cleanup throw; }

What is the difference between the “throw” and “throw ex” in .NET?

Answer»

In THROW, the original EXCEPTION stack information is retained.

Example:

For Throw :

try

{ // some operation that can FAIL } catch (Exception ex) { throw; }

For Throw Ex:

In Throw Ex the original information is overridden by the External information and you will LOSE the original information.

try { // do some operation that can fail } catch (Exception ex) { // do some local cleanup throw; }