How do I...Suppose there is two class in your project. There are one one methods each in your project. How to consume them in your project in one event

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C#

Hi all

Can anyone please answer this question.

Thank you

Posted 19-Feb-15 5:53am

Black_Rose

Updated 30-May-16 2:47am

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Richard MacCutchan 19-Feb-15 12:32pm

Sorry but that makes no sense. Please edit your question show the code and explain what it is supposed to do.

Black_Rose 19-Feb-15 12:34pm

No actually this was asked in one interview i faced.

Richard MacCutchan 19-Feb-15 12:40pm

Still makes no sense, methods are not "consumed".

Black_Rose 19-Feb-15 12:48pm

Then is there any other way to relate this question.

Black_Rose 19-Feb-15 12:53pm

Ok.may be this will help. please tell me
i have 2 classes in my project, which contains one method each.
how to call both of the methods in a single event.

Veronica S. Zotali 19-Feb-15 16:02pm

multicast delegates?

Sergey Alexandrovich Kryukov 19-Feb-15 13:00pm

What do you mean "no"? If you correctly conducted the question, it wasn't a correct one. Who told you that an interviewer wasn't an ignorant person? It happens all the time.

First of all, in such issues, its important to understand that you might work with the class, with its static (class) members, and with class instances and the instance members. Without it, this is not a question at all, just a talk about nothing.

—SA

OriginalGriff 19-Feb-15 12:34pm

I can't - but that's because it doesn't make any sense to me.
Can you try to explain in more detail, perhaps with some sample code and more information on what you mean by "There are one one methods each in your project" and "How to consume them in your project in one event"

Use the "Improve question" widget to edit your question and provide better information.

Black_Rose 19-Feb-15 12:35pm

No actually this was asked in one interview i faced.

OriginalGriff 19-Feb-15 12:47pm

Not in those words, I suspect.
It sounds "translated" - as if the question was asked in a different language and converted to English.
That doesn't work; not with literal translations into English, because the technical terms are lost. I have absolutely no idea what "one one methods" means much less when combined with "each in your project".

So think about the question in it's original language, and try to express it in more, simpler, words. That might help. Code would be better - it doesn't need translation! :laugh:

Black_Rose 19-Feb-15 12:52pm

Ok.may be this will help. please tell me
i have 2 classes in my project, which contains one method each.
how to call both of the methods in a single event.

OriginalGriff 19-Feb-15 12:55pm

static or instance methods?

Black_Rose 19-Feb-15 12:57pm

instance methods.

Richard MacCutchan 19-Feb-15 13:01pm

The same way you would call them from anywhere:


Form1.event()
{
    Obj1.method();
    Obj2.method();
}

See how it does not make sense.

Sergey Alexandrovich Kryukov 19-Feb-15 13:07pm

Please understand that you need to be qualified enough even to just ask questions here. So far, it looks like you are not there yet. You don't use comprehensible terminology and probably don't clearly understand the meaning of the words you use. You are referring to totally unrelated facts, as the fact that you have had an interview question.

One good remedy is: always ask only your own questions, never translate the question of others. There is no need to bring extra noise. What to do with the interview question? If you did not understand it, you should have asked the person asking you for clarification, again and again, until you get clear understanding. If you did not do it, simply forget it and never remember, this is useless. After all, answering this question cannot help you on next interview. But my advice can.

On this note, let's close this question.

—SA

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OriginalGriff · Answer 1 · 2015-02-19T08:05:00

"please tell me
i have 2 classes in my project, which contains one method each.
how to call both of the methods in a single event.
...
instance methods."

Instance methods require instances of their respective classes - so in order to call two instance methods from different classes in the same event handler, you need to find a way to get the instances into the method.

If the instances are contained within a class (such as a form) and stored as variables, then that's easy:

C#

public class MyForm : Form
   {
   private MyClass1 mc1 = new MyClass1();
   private MyClass2 mc2 = new MyClass2();
   ...
   void MyForm_Event(object sender, EventArgs e)
      {
      mc1.MyMethod1();
      mc2.MyMethod2();
      }
   }

If they aren't, then it gets more complex as you have to find a way to pass the instances through (or create them in the event handler, but that means you get new instances, and it won't affect any instances outside the method)

Veronica S. Zotali · Answer 2 · 2015-02-19T10:08:00

I think the solution is Multicast Delegates :

A useful property of delegate objects is that multiple objects can be assigned to one delegate instance by using the + operator. The multicast delegate contains a list of the assigned delegates. When the multicast delegate is called, it invokes the delegates in the list, in order. Only delegates of the same type can be combined.

Please check the following :

https://msdn.microsoft.com/en-us/library/ms173175.aspx[^]

How do I...Suppose there is two class in your project. There are one one methods each in your project. How to consume them in your project in one event

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