How to get the object name inside the class dynamically?

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IAutoTransmission Bentley = new AutoTransmission(5,80,50);

I am creating one object called Bentley. Inside the AutoTransmission class i want to get the object name dynamically when we are calling the constructor.
How we can get the object name ??

Inside the constructor i want to get the object name.like this

console.writeline("YOur object name is {0}",objname); //this has to print "Bentley"

Posted 16-Apr-12 21:33pm

samu4u

Updated 16-Apr-12 21:39pm

v2

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Lakamraju Raghuram 17-Apr-12 3:38am

You mean that you want to get the name 'Bentley' inside AutoTransmission(....) ??

samu4u 17-Apr-12 3:46am

Yes

2 solutions

Solution 2

Short answer: you cannot do that.
However, please see this thread[^] at 'The Competitors' site.

Posted 16-Apr-12 21:42pm

CPallini

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Lakamraju Raghuram 17-Apr-12 3:45am

+5 for you too (for leading to COMPETITORS)

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OriginalGriff · Accepted Answer · 2012-04-16T21:41:00

Solution 1

You can't - the "object name" that you are talking about is a variable which references an object, of type IAutoTransmission. The actual object does not have a human readable "name".

Think about it: if you wrote this code

C#

IAutoTransmission Bentley = new AutoTransmission(5,80,50);
IAutoTransmission Mine = Bently;

Which name would you expect it to return?

Posted 16-Apr-12 21:41pm

OriginalGriff

Comments

Lakamraju Raghuram 17-Apr-12 3:44am

+5.
If provided a one suppose, it will only open a can of worms

samu4u 17-Apr-12 3:52am

Sorry,
Think in this way, The AutoTransmission is possible for most of the car.So we cant able to predict which car is using autoTransmission.
The name of the car is actually the object name.So i want to get the name of object inside the same class itself.

OriginalGriff 17-Apr-12 4:01am

As I said: "You can't".
What if the object is an array element? What would it's name be? What if it was a property of a class? Should it's name be the classname.propertyname? or the classinstancevariablename.propertyname?
Think of what you are trying to achieve, and allow for naming in that scheme.

samu4u 17-Apr-12 4:10am

Thanks...

samu4u 17-Apr-12 4:13am

My friend said it is possible in Python.Then Why not in C#??
Thats why??

OriginalGriff 17-Apr-12 4:18am

Because Python is a totally different language which isn't reference based. C# is (almost entirely) reference based, so what you think of as a variable in C# in normally not the actual data, but a reference to where the data actually is. (The exception being value types, but they are a lot less common, and all classes are references).
Thus you can have to variables in C# which refer to the same data, and changing data via one reference alters it for all the others as well.

[edit]Typo: "as" for "are" - OriginalGriff[/edit]

samu4u 17-Apr-12 4:23am

I am thinking in this way, when we are declaring any variable the compiler is having a table to hold the reference value to memory with the name of the variable. So if we are taking or getting that variable table by using this reference we can get the name of the variable.

OriginalGriff 17-Apr-12 4:33am

No, it doesn't work like that at run time - the same data could be coming from a variety of sources.
If you want to have a specific name associated with a specific piece of data, then you have to allow for that name in your IAutoTransmission object.

IAutoTransmission Bentley = new AutoTransmission(5,80,50);
MyMethod(Bentley);
...
private void MyMethod(IAutoTransmission trans)
{
... // What is the name of the actual object here? "trans"? Or "Bentley"? How would the compiler know?
}

samu4u 17-Apr-12 5:49am

Thanks,
now it is more clear..
Now i got it.Because run time it will be direct memory location like low level program like 8085 programming..
Or we can say machine dependent code to the corresponding processor architecture.

Mohammad A Rahman 17-Apr-12 6:26am

Excellent!