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Question by samqweqwe · Nov 23, 2014 at 12:24 AM · functionclassparameterspassing

c# passing classes through functions

hi, i would like to pass a class into a function. I was wondering if a class values were changed inside the function would affect the actual class because it has not created a new instant (i could be wrong). does any one know, or would have have to return the class. Thanks

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Answer by Kiwasi · Nov 23, 2014 at 12:27 AM

When passing classes you are passing by reference. Any changes will affect the original.

When passing primitives or structs you pass by value. Any changes will not affect the original.

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avatar image samqweqwe · Nov 23, 2014 at 12:27 AM 0
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Thanks for the quick response

avatar image richyrich · Nov 23, 2014 at 01:33 AM 0
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Not meaning to be pedantic, but the post title and answer don't match, even if answering samqweqwe's question.

Presumably, your answer implies instances of the class, not the class itself - as stated in original title?

avatar image Jeff-Kesselman · Nov 23, 2014 at 02:18 AM 0
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I agree, the question as written makes no sense.

You cannot "chnage a class" except by loading a new compilation.

If you mean static fields then you can reference them off the class name such as $$anonymous$$yClass.myField, with no need to pass anything.

WHEN you pass classes what you are passing really is a "type", and the only thing you can do with it is reflection based operations.

avatar image samqweqwe · Nov 24, 2014 at 12:43 AM 0
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Sorry, I worded the question terribly. I meant passing an instance of a class.

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Answer by Jignesh G. · Nov 23, 2014 at 06:36 PM

You can pass class like below example.

     void Start()
     {
         Hello (new testClass);
     }
 
     void Hello(testClass tc)
     {
         //some code goes here
     }
 
     class testClass
     {
         public int dataValue;
                 
         public testClass()
         {
 
         }
     }
 }

Or you can pass component as a argument also if class is using monobehaviour.

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