difference -catch() And Catch (execption ex)

Question

difference -catch() And Catch (exeption ex) can anyone help me out

Raj Kumar · Answer

In one situation you can use the exception in the other you can't. try { throw new InvalidOperationException(Oh no!) } catch { // can't do anything here. } try { throw new InvalidOperationException(Oh no!) } catch (Exception ex) { MessageBox.Show(ex.Message); } Also you can filter catch statements for particular exceptions using the (Exception ex) version. try { // do something risky } catch (SqlException ex) { MessageBox.Show(SQL laid an egg.); } catch (FormatException ex) { MessageBox.Show(Your user isn't behaving and is entering data wrong.); } catch (Exception ex) { MessageBox.Show(I have no idea could be anything.); } There is also the third option. You can filter by the exception type but not use the variable in which case you don't need to specify a variable name to use in the catch block: try { // do something risky } catch (SqlException) { MessageBox.Show(SQL laid an egg.); } catch (FormatException) { MessageBox.Show(Your user isn't behaving and is entering data wrong.); } catch (Exception) { MessageBox.Show(I have no idea could be anything.); }

Jignesh Trivedi · Answer

hi catch and catch (Exception e) both are equally same other is just catch the exception and then use to rethrow or log the exception. The catch clause can be used without arguments in which case it catches any type of exception and referred to as the general catch clause. It can also take an object argument derived from System.Exception in which case it handles a specific exception. please refer http://msdn.microsoft.com/en-us/library/0yd65esw(v=vs.80).aspx hope this will help you.