[Mono-list] Calling a constructor from within another's code

[Stifu]

I don't think so.
It's the same in Java, the super() call must be the first instruction.


fran wrote:
> 
> Hi Stifu,
> 
> Thanks. Then I assume that there's no "official" manner of calling the
> base constructor within the new class one appart from the ": base
> (...)", isn't it?
> 
> Regards,
> 
> 
> El 16/11/10 19:54, Stifu escribió:
>> You could always move the base constructor code to a protected method and
>> call it from the derived class constructor.
>>
>> public class C : B
>> {
>>     public C ()
>>     {
>>         MyDataStruct data = GetDataFromTheDatabase ();
>>         this.InitStuff( data.a, data.b );
>>     }
>> }
>>
>> *shrugs*
>>
>>
>> fran wrote:
>>   
>>> Hello,
>>>
>>> I know you can call a base class constructor using ": base" after the
>>> new constructor signature. I.e.:
>>>
>>> public class A
>>> {
>>>     int i;
>>>     public A (int _i)
>>>     {
>>>         i=_i;
>>>     }
>>> }
>>>
>>> public class B : A
>>> {
>>>     public B (int a, int b) : base (a+b) // Calls A constructor with _i
>>> as _a+_b
>>>     {
>>>     }
>>> }
>>>
>>> But what happens if you should made some more complicated that cannot be
>>> done in that way???
>>>
>>> For example:
>>>
>>> public class C : B
>>> {
>>>     public C ()
>>>     {
>>>         MyDataStruct data = GetDataFromTheDatabase ();
>>>         base ( data.a, data.b ); // This will not work, indeed, but
>>> illustrates the idea...
>>>     }
>>> }
>>>
>>> This is a question more focused on C# than in mono itself, but I hope
>>> not to disturb no one doing it here since the list has not very high
>>> trafic.
>>>
>>> Best regards,
>>> _______________________________________________
>>> Mono-list maillist  -  Mono-list at lists.ximian.com
>>> http://lists.ximian.com/mailman/listinfo/mono-list
>>>
>>>
>>>     
>>   
> 
> _______________________________________________
> Mono-list maillist  -  Mono-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/mono-list
> 
> 

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