CSHARP

c# catch multiple exceptions

// if C# v6+, you can use exception filters
catch (Exception ex) when (ex is FormatException || ex is OverflowException)
{
  // do something
}

c# catch multiple exception types

try
{
    /*  Try do something ... */
}
catch (Exception ex) when (ex is InvalidDataException || ex is ArgumentException)
{
    Console.WriteLine("a specific catch");
}
catch (Exception ex)
{
  Console.WriteLine("General catch");
}

c# catch two exceptions in one block

catch (Exception ex)            
{                
    if (ex is FormatException || ex is OverflowException)
    {
        WebId = Guid.Empty;
        return;
    }

    throw;
}

c# try catch multiple catches

            try
            {
                Console.WriteLine("Chose a number: ");
                int usrNo = Convert.ToInt32(Console.ReadLine());
                return usrNo;
            }
            catch (FormatException ex) 
            { 
              ErrorMessagePrintCustomMessage("You pressed a letter"); 
            }
            catch (Exception ex) { ErrorMessageErrorOccured(ex); }

c# catch multiple exceptions at once

catch (Exception ex)            
{                
    if (ex is FormatException or OverflowException) // Chain as many or xException as you need
    {
        WebId = Guid.Empty;
        return;
    }
    
    throw;
}